{"title":"Microcontroller Modules \u0026 Accessories","description":"\u003cp\u003eShop \u003cstrong\u003emicrocontroller modules and accessories\u003c\/strong\u003e for ESP32, Arduino, Raspberry Pi and other embedded electronics projects. Vetco Electronics carries sensors, relay modules, motor drivers, interface boards, power control modules, communication hardware and other add-on components for prototyping, automation, robotics, IoT and custom electronic designs.\u003c\/p\u003e\n\n\u003cp\u003eThese modules make it easier to add sensing, switching, motion control, communication and other functions to a development board without designing every circuit from scratch. Whether you are building a simple prototype or a more advanced embedded system, this collection includes practical hardware for expanding the capabilities of your microcontroller project.\u003c\/p\u003e\n\n\u003ch2\u003eSensors for Microcontroller and Embedded Projects\u003c\/h2\u003e\n\n\u003cp\u003eSensor modules allow a microcontroller to measure and respond to the physical world. Our selection includes hardware for detecting motion, orientation, distance, light and other environmental or physical conditions.\u003c\/p\u003e\n\n\u003cp\u003eAvailable sensor types include accelerometers, gyroscopes, magnetometers, ultrasonic distance sensors, light sensors and other modules suitable for applications such as robotics, automation, navigation, monitoring systems, interactive electronics and IoT devices.\u003c\/p\u003e\n\n\u003ch2\u003eMotion, Orientation and Position Sensors\u003c\/h2\u003e\n\n\u003cp\u003eMotion sensing modules such as accelerometers, gyroscopes and magnetometers can provide information about movement, rotation and orientation. These devices are commonly used in robots, stabilization systems, portable electronics, navigation projects and other applications where a microcontroller needs to understand how a device is moving or positioned.\u003c\/p\u003e\n\n\u003cp\u003eOur selection includes modules based on devices such as the \u003cstrong\u003eMPU-6050 accelerometer and gyroscope\u003c\/strong\u003e, MMA7361 accelerometer and QMC5883L magnetometer.\u003c\/p\u003e\n\n\u003ch2\u003eRelay Modules and Electronic Switching\u003c\/h2\u003e\n\n\u003cp\u003eRelay modules provide a convenient way for a low-voltage microcontroller signal to control another electrical circuit. They are commonly used in automation systems, lighting controls, test equipment and projects that need to switch external loads.\u003c\/p\u003e\n\n\u003cp\u003eVetco carries single and multiple relay modules for use with development boards including ESP32, Arduino and Raspberry Pi. Always verify the relay's voltage, current rating and required control voltage before connecting a load.\u003c\/p\u003e\n\n\u003ch2\u003eMotor Drivers and MOSFET Control Modules\u003c\/h2\u003e\n\n\u003cp\u003eMicrocontroller GPIO pins are not designed to directly power most motors or higher-current loads. Motor driver and MOSFET modules provide an interface between the microcontroller and the load, allowing a development board to control devices that require more current than the GPIO pins can provide.\u003c\/p\u003e\n\n\u003cp\u003eOur selection includes hardware such as \u003cstrong\u003eL298N motor driver modules\u003c\/strong\u003e for controlling DC motors and stepper motors, as well as MOSFET switching modules for electronic load control.\u003c\/p\u003e\n\n\u003ch2\u003eDistance, Light and Environmental Sensing\u003c\/h2\u003e\n\n\u003cp\u003eMicrocontroller sensor modules can be used to collect real-world data for automatic control, measurement and monitoring. Ultrasonic range finder modules can measure distance for robotics and proximity detection, while photoresistors and light sensor circuits can detect changes in ambient light.\u003c\/p\u003e\n\n\u003cp\u003eThese types of sensors are useful for projects such as obstacle detection, automatic lighting, alarms, environmental monitoring and interactive devices.\u003c\/p\u003e\n\n\u003ch2\u003eCommunication, RFID and Interface Modules\u003c\/h2\u003e\n\n\u003cp\u003eCommunication and interface modules can add new ways for a development board to connect with computers, devices, tags and other electronics. Vetco carries modules for applications including RFID identification, USB-to-serial communication and TTL serial interfacing.\u003c\/p\u003e\n\n\u003cp\u003eUSB-to-serial adapters and FTDI-style interface boards are particularly useful for programming, configuring and debugging embedded hardware that communicates through UART or TTL serial connections.\u003c\/p\u003e\n\n\u003ch2\u003eModules for ESP32 Development\u003c\/h2\u003e\n\n\u003cp\u003eMany modules commonly associated with Arduino projects can also be used with \u003cstrong\u003eESP32 development boards\u003c\/strong\u003e. Sensors and accessories that communicate through interfaces such as \u003cstrong\u003eI2C, SPI, UART or digital GPIO\u003c\/strong\u003e can often be integrated into ESP32 projects when their voltage levels and electrical requirements are compatible.\u003c\/p\u003e\n\n\u003cp\u003eESP32 boards are especially useful for connected projects because many models include built-in Wi-Fi and Bluetooth. Combining an ESP32 with sensor, relay, motor control or interface modules makes it possible to build wireless monitoring systems, automation controllers, remote sensors, robotics projects and other connected devices.\u003c\/p\u003e\n\n\u003ch2\u003eModules for Arduino and Raspberry Pi\u003c\/h2\u003e\n\n\u003cp\u003eArduino boards remain widely used for microcontroller prototyping, while Raspberry Pi computers are commonly used when a project requires a full operating system or more computing resources. Many of the modules in this collection can be used with either platform depending on the required interface, operating voltage and available software support.\u003c\/p\u003e\n\n\u003cp\u003eWhen choosing a module, check the required supply voltage, logic voltage, communication interface and current requirements to make sure it is appropriate for your development board.\u003c\/p\u003e\n\n\u003ch2\u003eMicrocontroller Interfaces: I2C, SPI, UART and GPIO\u003c\/h2\u003e\n\n\u003cp\u003eDifferent microcontroller modules communicate using different electrical interfaces. Common interfaces include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eI2C\u003c\/strong\u003e for sensors, displays and other addressable peripherals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPI\u003c\/strong\u003e for higher-speed sensors, displays and interface devices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUART \/ TTL serial\u003c\/strong\u003e for serial modules, programming and device communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital GPIO\u003c\/strong\u003e for switches, relays, simple sensors and control signals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog inputs\u003c\/strong\u003e for sensors that provide a variable voltage output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eUnderstanding the interface used by a module can help determine whether it will connect directly to your ESP32, Arduino, Raspberry Pi or other development platform.\u003c\/p\u003e\n\n\u003ch2\u003eModules and Accessories for Robotics, IoT and Automation\u003c\/h2\u003e\n\n\u003cp\u003eMicrocontroller modules and accessories can be used in a wide range of electronics projects, including:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eRobotics and motor control\u003c\/li\u003e\n\u003cli\u003eIoT sensors and connected devices\u003c\/li\u003e\n\u003cli\u003eHome and industrial automation\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring\u003c\/li\u003e\n\u003cli\u003eDistance and proximity sensing\u003c\/li\u003e\n\u003cli\u003eMotion and orientation detection\u003c\/li\u003e\n\u003cli\u003eRFID and access control\u003c\/li\u003e\n\u003cli\u003eLighting and load switching\u003c\/li\u003e\n\u003cli\u003eData acquisition and instrumentation\u003c\/li\u003e\n\u003cli\u003eEducational electronics and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eShop Microcontroller Modules \u0026amp; Accessories at Vetco Electronics\u003c\/h2\u003e\n\n\u003cp\u003eBrowse Vetco Electronics for \u003cstrong\u003emicrocontroller modules, sensors, relay boards, motor drivers, interface modules and embedded electronics accessories\u003c\/strong\u003e for ESP32, Arduino, Raspberry Pi and other development platforms. Our selection includes practical components for prototyping, education, engineering, automation, repair and custom electronics projects.\u003c\/p\u003e","products":[{"product_id":"8-channel_relay_module_for_arduino_d20d37","title":"8-Channel Relay Module for Arduino (D20)(D37))","description":"\u003cp\u003e8-Channel Relay Module for Arduino available in two versions. A 5V controlled version VUPN5938. And a 12V controlled version VUPN688.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eThe 5V controlled version VUPN5938:\u003c\/strong\u003e\u003cbr\u003e This board provides 8 optically isolated inputs that accept a wide range of voltage, including the 3VDC and 5VDC signals available on the Arduino. This is a great way to switch on or off AC or DC loads using your Arduino!\u003cbr\u003e The relays are single-pole double-throw (SPDT) and are rated for 10A @ 250VAC. The ground for the relay coils is separate from the ground for the input signals. This, along with the optical isolation, provides a total galvanic isolation between the input and output. The two grounds could be joined together if desired with the included jumper.\u003cbr\u003e \u003cbr\u003e The relay coils run on 5VDC, and the module has screw-terminal blocks for sturdy and reusable attachments for the external load. The signal and power inputs run through the male single-row header.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eThe 12V controlled version VUPN688:\u003c\/strong\u003e\u003cbr\u003e This board provides 8 optically isolated inputs that accept 12V DC signals available on the Arduino. This is a great way to switch on or off AC or DC loads using your 12V DC Signal source!\u003cbr\u003e The relays are single-pole double-throw (SPDT) and are rated for 10A @ 250VAC. The ground for the relay coils is separate from the ground for the input signals. This, along with the optical isolation, provides a total galvanic isolation between the input and output. The two grounds could be joined together if desired with the included jumper.\u003cbr\u003e \u003cbr\u003e The relay coils run on 12V DC, and the module has screw-terminal blocks for sturdy and reusable attachments for the external load. The signal and power inputs run through the male single-row header.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNOTICE:\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e-The down side of the 12V relay module (VUPN688) is that Ground is not common. In this circumstance Positive is the common. Which means that each relay needs a separate, individual ground connection to activate. As opposed to what people would normally assume where each INput would be a positive contact. It makes this very difficult to use with a microcontroller or in a situation where you want or need to controll something with positive voltage. Since microcontrollers usually use 3.3v or 5v logic, this relay module also could NOT be controlled buy such devices without extra transistors or more circuits that one might want to assemble.\u003c\/p\u003e \u003cp\u003e-We are unable to provide specific relay part numbers for the relays that are actually soldered to these modules. They will have the correct matching electrical values and ratings, but the manufacturer and part numbers will rarely be the same from batch to batch.\u003c\/p\u003e \u003cp\u003e-PCB Color will Vary. (May come in red, green, black, blue, etc.)\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eQTY: 1 x 8-Channel Relay Module for Arduino\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cbr\u003e \u003cbr\u003e IN STORE LOCATION: VUPN688 AKA the 12 volt version is located in the NEW section of the arduno storage area behind the counter.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"5 Volts","offer_id":42878683709577,"sku":"VUPN5938","price":20.89,"currency_code":"USD","in_stock":true},{"title":"12 Volts","offer_id":42878683742345,"sku":"VUPN688","price":20.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn5938_a_8-channel_relay_module_0a1758f2-37a7-4d5b-b6b3-bf3ffbd6060f.jpg?v=1722901233"},{"product_id":"mcp3008_mcp3008_-_8_channel_10-bit_adc_for_raspberry_pi-pi2-pi3-pi0w","title":"MCP3008 - 8 Channel 10-Bit ADC for Raspberry Pi\/Pi2\/Pi3\/Pi0W","description":"\u003ch1\u003e8-Channel 10-Bit Analog-to-Digital Converter for Raspberry Pi\u003c\/h1\u003e\u003ch2\u003eAdd Analog Inputs to Your Raspberry Pi with the MCP3008\u003c\/h2\u003e\u003cp\u003eEasily upgrade your Raspberry Pi projects with the MCP3008, a popular 8-channel 10-bit Analog-to-Digital Converter (ADC). This versatile chip lets you read up to eight analog sensors, like temperature, light, or potentiometers, from a single board—perfect for turning digital-only Raspberry Pi models into powerful sensor hubs.\u003c\/p\u003e\u003ch2\u003eKey Features of the MCP3008 ADC\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Analog Channels:\u003c\/strong\u003e Connect up to eight analog devices at once. Great for multi-sensor setups or monitoring projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-Bit Resolution:\u003c\/strong\u003e Receive clear readings with 10-bit accuracy for detailed sensor data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Operates between 2.7V and 5.5V—ideal for use with a variety of microcontrollers and logic levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPI Interface:\u003c\/strong\u003e Fast and reliable Serial Peripheral Interface (SPI) communication for quick data transfers and easy integration with Raspberry Pi, Pi 2, Pi 3, and Pi Zero W.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose the MCP3008 for Raspberry Pi?\u003c\/h2\u003e\u003cp\u003eThe MCP3008 brings analog input capabilities to your Raspberry Pi, which otherwise only has digital input\/output. This makes it easy to connect analog sensors for environmental monitoring, home automation, robotics, and DIY electronics. The straightforward SPI connection means setup is simple—even for beginners.\u003c\/p\u003e\u003ch2\u003eTechnical Data\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 8 analog input pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 10 bits per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 2.7V to 5.5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e SPI (Serial Peripheral Interface)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MCP3008\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEasy Integration and Support\u003c\/h2\u003e\u003cp\u003eAdding analog sensors to your Raspberry Pi has never been easier. The MCP3008 is supported by many tutorials and libraries in the Raspberry Pi community, so you can get started quickly. Just connect, configure, and enjoy reading live data from your favorite analog devices.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42878755438729,"sku":"MCP3008","price":4.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/mcp3008_a_8-channel_adc_for_raspberry_pi_53c42d83-b2fd-47a1-87d6-51166e559b00.jpg?v=1722902432"},{"product_id":"vupn1245_ambient_light_sensor_-_arduino_or_pi_temt6000_d95","title":"Ambient Light Sensor - Arduino or Pi (TEMT6000) (D95)","description":"\u003ch1\u003eAmbient Light Sensor TEMT6000 – For Arduino and Raspberry Pi\u003c\/h1\u003e\u003ch2\u003eEasy Ambient Light Measurement for Your Projects\u003c\/h2\u003e\u003cp\u003eThe TEMT6000 ambient light sensor is the perfect tool for adding automatic brightness control, smart lighting, or light monitoring to your Arduino or Raspberry Pi projects. Designed for plug-and-play simplicity, this analog light sensor makes it easy to measure real-time light intensity, just like your phone or laptop does.\u003c\/p\u003e\u003ch2\u003eArduino and Raspberry Pi Compatible\u003c\/h2\u003e\u003cp\u003eThis TEMT6000 module works seamlessly with Arduino and Raspberry Pi, making it a popular choice for beginners and hobbyists. Its analog output means you can connect it directly to analog inputs for hassle-free integration.\u003c\/p\u003e\u003ch2\u003eAccurate and Human-Eye Mimicking Detection\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWavelength Sensitivity:\u003c\/strong\u003e Peak at 570nm (visible light – just like the human eye)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Detection Angle:\u003c\/strong\u003e ±60° half sensitivity, so it “sees” ambient light from a broad area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly Responsive:\u003c\/strong\u003e Detects changes in light in real time\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e +5VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Consumption:\u003c\/strong\u003e 50mA (max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Sensitivity:\u003c\/strong\u003e 570nm wavelength\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngle of Sensitivity:\u003c\/strong\u003e ±60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e One sensor per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eProduct ID: VUPN1245\u003cbr\u003eVetco Part Number: D95\u003c\/p\u003e\u003ch2\u003ePerfect for Everyday Consumer Projects\u003c\/h2\u003e\u003cp\u003eWhether you want to turn lights on automatically, monitor sunlight in a greenhouse, or add smart features to your home gadgets, the TEMT6000 ambient light sensor makes it easy. Its accuracy and wide-angle sensing make it ideal for a range of applications.\u003c\/p\u003e\u003ch2\u003eKey Features at a Glance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEasily integrates with Arduino and Raspberry Pi systems\u003c\/li\u003e\n\u003cli\u003eReal-time monitoring of visible light, just like the human eye\u003c\/li\u003e\n\u003cli\u003eReady to use—no complicated setup\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879313182857,"sku":"VUPN1245","price":3.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn1245_a_visible_light_sensor_339fa5c5-2a12-42fc-b8a6-2768027cf58a.jpg?v=1722912817"},{"product_id":"vupn1246_mosfet_module_-_arduino_or_pi_d61","title":"MOSFET Module - Arduino or PI (D61)","description":"\u003ch1\u003eMOSFET Module for Arduino and Raspberry Pi – Easy Digital Control\u003c\/h1\u003e\u003ch2\u003eSimple and Reliable MOSFET Driver Module\u003c\/h2\u003e\u003cp\u003eLooking to control high-power devices with your Arduino or Raspberry Pi? This MOSFET module is designed for hassle-free digital switching and speed control, making it perfect for beginners and everyday makers. No complicated wiring or deep electronics knowledge required – if you’re new to MOSFETs, this is the right choice for your project!\u003c\/p\u003e\u003ch2\u003eCompatible with Arduino, Raspberry Pi, and More\u003c\/h2\u003e\u003cp\u003eThis IRF520 MOSFET module works seamlessly with platforms like Arduino, MCU, ARM, and Raspberry Pi. Whether you're building a smart home gadget, DIY light controller, or electronic experiment, it provides reliable performance and easy integration as a MOSFET driver for Arduino or Raspberry Pi projects.\u003c\/p\u003e\u003ch2\u003eKey Features and Technical Data\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 33mm x 24mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic Voltage:\u003c\/strong\u003e Supports 3.3V and 5V logic signals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Control:\u003c\/strong\u003e Designed for digital level signal input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Load Voltage:\u003c\/strong\u003e 0–24V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Load Current:\u003c\/strong\u003e Up to 5 Amps (heatsink required above 1A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOSFET Type:\u003c\/strong\u003e Uses genuine IRF520 power MOS for dependable switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePWM Support:\u003c\/strong\u003e Perfect for dimming LEDs, controlling DC motors, pumps, and solenoid valves via PWM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProject Friendly:\u003c\/strong\u003e Great for anyone wanting to learn how to use a MOSFET module with Arduino or Pi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct ID:\u003c\/strong\u003e VUPN1246 (D61)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect for Everyday DIY Electronics\u003c\/h2\u003e\u003cp\u003eUse this module to adjust motor speed, dim LED lights, or control other DC devices up to 24V directly from your microcontroller. It’s ideal for projects at home, experiments in the classroom, or quick prototyping on the workbench. Anyone can get started with this user-friendly MOSFET driver module!\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879313281161,"sku":"VUPN1246","price":5.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn1246_a_mosfet_module_-_arduino_ad26b2c5-1a77-4d3c-b0aa-01d7f27d022d.jpg?v=1722912821"},{"product_id":"vupn1548_mq-3_alcohol_breathalyzer_sensor_module_arduino_d115","title":"MQ-3 Alcohol Breathalyzer Sensor Module Arduino (D115)","description":"\u003ch1\u003eMQ-3 Alcohol Sensor Breath Gas Detector Module\u003c\/h1\u003e\n\u003ch2\u003eEasy Alcohol Detection for Arduino and DIY Projects\u003c\/h2\u003e\n\u003cp\u003eThe MQ-3 alcohol sensor module is a simple and affordable way to detect ethanol vapor in the air. It is commonly used in DIY breathalyzer projects, experiments, and learning applications where you want to measure the presence and relative concentration of alcohol gas using a microcontroller such as Arduino.\u003c\/p\u003e\n\u003ch2\u003eDesigned for Breathalyzer and Ethanol Sensing Applications\u003c\/h2\u003e\n\u003cp\u003eThis module is well suited for breath alcohol detection and other ethanol vapor monitoring tasks. It can be used for educational projects, demonstrations, field testing concepts, or adding alcohol detection features to custom electronics. The sensor responds quickly to changes in alcohol concentration and recovers fast after exposure.\u003c\/p\u003e\n\u003ch2\u003eDigital and Analog Outputs for Flexible Use\u003c\/h2\u003e\n\u003cp\u003eThe MQ-3 module provides both a TTL digital output and an analog output. The digital output switches when alcohol concentration exceeds a user-adjustable threshold, making it easy to trigger indicators, relays, or alarms. The analog output provides a variable voltage that increases as alcohol concentration rises, allowing more detailed measurement and calibration in software.\u003c\/p\u003e\n\u003ch2\u003eHigh Sensitivity with Stable Performance\u003c\/h2\u003e\n\u003cp\u003eUsing an MQ-3 semiconductor gas sensor with an SnO2 sensing element, this module offers high sensitivity to alcohol while maintaining good resistance to interference from smoke, vapor, and gasoline. It features reliable long-term stability, making it suitable for repeated testing and experimentation.\u003c\/p\u003e\n\u003ch2\u003eSimple Wiring and Easy Integration\u003c\/h2\u003e\n\u003cp\u003eThe module is designed for quick integration into microcontroller projects. Clearly labeled pins make wiring straightforward, and mounting holes allow easy installation into enclosures or project frames. After power-up, the sensor requires a short warm-up period before readings stabilize, which is normal operation.\u003c\/p\u003e\n\u003ch2\u003eElectrical and Technical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSensor type: MQ-3 alcohol gas sensor\u003c\/li\u003e\n\u003cli\u003eDetectable alcohol concentration range: approximately 0.05 mg\/L to 10 mg\/L\u003c\/li\u003e\n\u003cli\u003eInput voltage: DC 5 V\u003c\/li\u003e\n\u003cli\u003ePower consumption: approximately 150 mA\u003c\/li\u003e\n\u003cli\u003eDigital output (DO): TTL level, low-level active (approximately 0.1 V to 5 V)\u003c\/li\u003e\n\u003cli\u003eAnalog output (AO): approximately 0.1 V to 4 V depending on alcohol concentration\u003c\/li\u003e\n\u003cli\u003eSensing material: SnO2 semiconductor\u003c\/li\u003e\n\u003cli\u003eWarm-up time: approximately 20 seconds for stable readings\u003c\/li\u003e\n\u003cli\u003eResponse and recovery: fast response and recovery characteristics\u003c\/li\u003e\n\u003cli\u003eModule dimensions: 32 mm x 20 mm x 22 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePin Connections\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVCC: +5 V power supply\u003c\/li\u003e\n\u003cli\u003eGND: Ground\u003c\/li\u003e\n\u003cli\u003eDO: TTL digital output\u003c\/li\u003e\n\u003cli\u003eAO: Analog voltage output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReliable Alcohol Detection for Learning and Prototyping\u003c\/h2\u003e\n\u003cp\u003eThis MQ-3 alcohol sensor module is a popular choice for students, hobbyists, and makers who want to experiment with gas sensing and breath alcohol detection. It combines ease of use, flexible outputs, and dependable performance in a compact module suitable for a wide range of electronics projects.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879326716041,"sku":"VUPN1548","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn1548_a_alcohol_breathalyzer_arduino_module_247442b0-8abe-4d94-83cd-32c97b866073.jpg?v=1722913162"},{"product_id":"vupn1586_dfplayer_mini_mp3_module_with_microsd_card_slot_for_arduino_d133","title":"DFPlayer Mini MP3 Module with MicroSD Card Slot for Arduino (D133)","description":"\u003ch1\u003eDFPlayer Mini MP3 Module for Arduino\u003c\/h1\u003e\u003ch2\u003eEasy Music Playback with DFPlayer Mini MP3 Module\u003c\/h2\u003e\u003cp\u003eLooking for an easy way to add sound to your next project? The DFPlayer Mini MP3 Module makes creating your own Arduino MP3 player simple and fun. This compact audio module lets you play your favorite tunes or sound effects directly from a MicroSD card, making it perfect for DIY electronics, interactive displays, toys, or alarm systems.\u003c\/p\u003e\u003ch2\u003ePlug-and-Play MP3 Module for Arduino and More\u003c\/h2\u003e\u003cp\u003eCompatible with Arduino and any microcontroller with serial capability, the DFPlayer Mini MP3 Module is a beginner-friendly solution for adding audio to your projects. You can use it as a stand-alone player with a speaker, battery, and buttons, or control it through your Arduino using straightforward serial commands. No need for fiddly extra shields — just wire it up and play.\u003c\/p\u003e\u003ch2\u003eFeatures That Make Music Easy\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupports MP3, WAV, and WMA file formats\u003c\/li\u003e\n\u003cli\u003eDirectly connects to speakers for easy setup\u003c\/li\u003e\n\u003cli\u003eWorks with FAT16 and FAT32 file systems; supports up to 32GB MicroSD\/TF card\u003c\/li\u003e\n\u003cli\u003e30-level adjustable volume and 6 EQ modes for customizable sound\u003c\/li\u003e\n\u003cli\u003e3W built-in amplifier—loud sound with minimal effort\u003c\/li\u003e\n\u003cli\u003eAudio files organized into up to 100 folders, each holding 255 tracks\u003c\/li\u003e\n\u003cli\u003eMultiple control modes: IO, serial, or AD key mode\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Data\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupported sample rates (kHz): 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48\u003c\/li\u003e\n\u003cli\u003e24-bit DAC output\u003c\/li\u003e\n\u003cli\u003eDynamic range: 90dB\u003c\/li\u003e\n\u003cli\u003eSignal-to-noise ratio: 85dB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGuides \u0026amp; Resources\u003c\/h2\u003e\u003cp\u003eNeed help getting started? Find a \u003ca href=\"https:\/\/www.electronics-lab.com\/project\/mp3-player-using-arduino-dfplayer-mini\/\" target=\"_blank\"\u003ecomplete DFPlayer Mini tutorial with sample Arduino code here\u003c\/a\u003e to launch your MP3 projects in minutes.\u003c\/p\u003e\u003ch2\u003eWhy Choose the DFPlayer Mini Audio Module?\u003c\/h2\u003e\u003cp\u003eThis versatile MP3 module for Arduino makes playing sound easy and affordable. Whether you're building a custom music player, sound-activated prop, or interactive display, the DFPlayer Mini MP3 Module delivers reliable performance and crisp sound every time.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879327928457,"sku":"VUPN1586","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn1586_a_compact_mp3_module_2864897d-7776-4310-86c1-b2de091a9433.jpg?v=1722913202"},{"product_id":"vupn1681_lm386_amplifier_board_mono_audio_module_gain_dc_5-12v_d149","title":"LM386 Amplifier Board Mono Audio Module Gain DC 5-12V (D149)","description":"\u003ch1\u003eLM386 Amplifier Board - Easy Mono Audio Module for DIY Sound Projects\u003c\/h1\u003e\u003ch2\u003eSimple and Powerful LM386 Audio Amplifier\u003c\/h2\u003e\u003cp\u003eUpgrade your audio projects easily with this LM386 amplifier board, a compact mono audio module perfect for beginner and hobbyist sound enthusiasts. This module uses the reliable LM386 chip to deliver clear sound with low power use, making it ideal for small speakers, radios, and DIY electronics.\u003c\/p\u003e\u003ch2\u003eKey Features of the LM386 Amplifier Board\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e With a static current of just 2mA, it’s a great choice for battery-powered setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Operates smoothly from DC 5V to 12V, offering flexibility for various projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Gain:\u003c\/strong\u003e Default internal gain of 200, providing plenty of volume boost for most needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Distortion:\u003c\/strong\u003e Enjoy clean, crisp audio without unwanted noise or feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume Control:\u003c\/strong\u003e Onboard potentiometer makes it simple to adjust sound levels on the fly. Turn it clockwise to increase volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Power Indicator:\u003c\/strong\u003e Lets you know when your amplifier module is powered on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e Small footprint (41 x 13 mm) fits in tight spaces and compact enclosures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Use:\u003c\/strong\u003e Minimal external components required for setup, making installation easy for anyone.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For Everyday Audio Upgrades\u003c\/h2\u003e\u003cp\u003eWhether you’re building a simple speaker, enhancing your radio, or experimenting with DIY electronics, the LM386 mono audio amplifier board delivers reliable sound and easy installation. Each board is sold individually (Vetco Product ID: VUPN1681).\u003c\/p\u003e\u003ch2\u003eWhy Choose our LM386 Audio Amplifier Module?\u003c\/h2\u003e\u003cp\u003e- Ideal for students, tinkerers, and anyone looking to add better sound to their electronics.\u003cbr\u003e- Wide range of uses, including intercoms, recorders, radios, and small speaker builds.\u003cbr\u003e- Trusted performance and quality backed by Vetco Electronics’ commitment to customer satisfaction.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879331532937,"sku":"VUPN1681","price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/VUPN1681_LM386_Amplifier_Mono_Audio.jpg?v=1739837992"},{"product_id":"vupn1720_4_channel_logic_level_converter_-_bi_directional_-_bob-12009_-_3-3v_to_5v_d136","title":"4 Channel Logic Level Converter - Bi Directional - BOB-12009 – 3.3V to 5V (D136)","description":"\u003ch1\u003e4-Channel Bi-Directional Logic Level Converter - 3.3V to 5V (BOB-12009)\u003c\/h1\u003e\n\u003ch2\u003eConnect 3.3V ESP32 Logic to 5V Devices\u003c\/h2\u003e\n\u003cp\u003eThis 4-channel bi-directional logic level converter allows microcontrollers and digital devices operating at different logic voltages to communicate safely. It is commonly used to connect \u003cstrong\u003e3.3V ESP32, Raspberry Pi and other 3.3V systems to 5V sensors, modules and microcontrollers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant: This module does not generate 5V from 3.3V.\u003c\/strong\u003e It is a logic signal converter, not a voltage boost converter. The board requires both voltage rails to be supplied by your project. For a typical ESP32-to-5V application, connect \u003cstrong\u003e3.3V to the LV pin and 5V to the HV pin\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWant a version that lets you connect a 5V module to your ESP32 without an external power supply? \u003ca href=\"https:\/\/vetco.net\/products\/4-channel-bidirectional-logic-level-converter-board\" title=\"LLC 5VB\" rel=\"noopener\" target=\"_blank\"\u003eLook at this option.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003ePower Requirements\u003c\/h2\u003e\n\u003cp\u003eThe BOB-12009 requires a low-voltage reference and a high-voltage reference in order to translate signals between the two voltage levels.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLV:\u003c\/strong\u003e Connect to the low-voltage supply, typically 3.3V when used with an ESP32\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHV:\u003c\/strong\u003e Connect to the high-voltage supply, typically 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGND:\u003c\/strong\u003e Both systems must share a common ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module uses these voltage rails as references for the logic conversion. It does \u003cstrong\u003enot\u003c\/strong\u003e contain a boost converter or voltage regulator that creates the high-voltage supply.\u003c\/p\u003e\n\u003cp\u003eIf your project only provides 3.3V and you need both a 5V power supply and 5V logic, you will need a separate 3.3V-to-5V boost converter or a logic level converter with an integrated boost converter.\u003c\/p\u003e\n\u003ch2\u003eUsing This Level Converter with an ESP32\u003c\/h2\u003e\n\u003cp\u003eESP32 microcontrollers use 3.3V logic, while many sensors, displays and other electronic modules are designed for 5V logic. This converter provides a way to interface the two systems when both 3.3V and 5V power rails are available.\u003c\/p\u003e\n\u003cp\u003eA typical ESP32 connection would be:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32 3.3V:\u003c\/strong\u003e Connect to LV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V supply:\u003c\/strong\u003e Connect to HV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32 ground:\u003c\/strong\u003e Connect to GND and share ground with the 5V device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32 signal:\u003c\/strong\u003e Connect to an LV channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5V device signal:\u003c\/strong\u003e Connect to the matching HV channel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor example, a signal connected to LV1 on the 3.3V side corresponds to HV1 on the 5V side.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eLV\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e must be tied to the low-voltage rail, such as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.3 V\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eHV\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e must be tied to the high-voltage rail, such as \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5 V\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003egrounds must be common\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat Is a Logic Level Converter?\u003c\/h2\u003e\n\u003cp\u003eA logic level converter, also called a logic level shifter or voltage level translator, changes the voltage level of digital signals so devices using different logic voltages can communicate.\u003c\/p\u003e\n\u003cp\u003eThis is different from converting power-supply voltage. A logic level converter changes \u003cstrong\u003esignal voltage\u003c\/strong\u003e. A boost converter changes \u003cstrong\u003epower-supply voltage\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e4 Bi-Directional Logic Channels\u003c\/h2\u003e\n\u003cp\u003eThe BOB-12009 provides four separate bi-directional signal channels. 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By utilizing the Arduino Gravity IO expansion board in conjunction with Gravity modules, you can effortlessly establish connections with a single cable. Whether analog, digital, or I2C modules, easily identified wiring colors liberate you from the tension that precedes every power-on moment. There is no need for wire strippers or soldering irons to experience the enchantment of Arduino. Furthermore, it is compatible with both the Arduino UNO R3 and Arduino UNO R4.\u003c\/p\u003e \u003cp\u003eMoreover, this Arduino IO expansion shield has a range of features, such as wide voltage input, an Xbee module socket, a UART fast toggle switch, a 3.3V voltage selection jumper, and dedicated power protection for servos. These functionalities elevate the expandability of your Arduino to new heights.\u003c\/p\u003e \u003cp\u003eFurthermore, using the Gravity IO expansion board does not imply the obligation to exclusively use Gravity modules. On the Gravity IO expansion board, it remains convenient to employ other non-Gravity modules by easily connecting them using DuPont wires.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003ch4\u003eFeatures\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003e3.3V\/5V operating voltage select\u003c\/li\u003e \u003cli\u003eSwitch for wireless communication \u0026amp; programme\u003c\/li\u003e \u003cli\u003eMore Easily recognitive interfaces\u003c\/li\u003e \u003cli\u003eColorful header for illustrating digital or analog pins\u003c\/li\u003e \u003cli\u003eImmersion gold surface\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003ch4\u003eSpecification\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003eInput Voltage\u003c\/li\u003e \u003cli style=\"margin-left: 40px;\"\u003e7-12V, PWR_IN\u003c\/li\u003e \u003cli style=\"margin-left: 40px;\"\u003e4.8-6V, SERVO_PWR, depending on your servo\u003c\/li\u003e \u003cli\u003eCompatible module voltage: 5V\/3.3V\u003c\/li\u003e \u003cli\u003eSupport interface: I2C, SPI, Xbee (Xbee pro), Bluetooth, APC220\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003cp\u003e \u003c\/p\u003e \u003c\/div\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879338872969,"sku":"VUPN1857","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn1857_a_arduino_io_expansion_shield_7d5d875a-152f-4298-9fba-f4243b05f1f8.jpg?v=1722913533"},{"product_id":"vupn1916_voice_recording_module_with_mic_and_speaker_for_arduino_d113","title":"Voice Recording Module With Mic and Speaker for Arduino (D113)","description":"\u003ch1\u003eVoice Recording Module with Mic and Speaker for Arduino\u003c\/h1\u003e\u003ch2\u003eAdd Audio to Your Arduino Projects\u003c\/h2\u003e\u003cp\u003eLooking for a simple way to add sound to your next DIY creation? The Voice Recording Module with Mic and Speaker for Arduino makes it easy for anyone to record and play back audio. Use it to personalize homemade greeting cards, add sound effects to costumes, or even make fun desktop gadgets that play your favorite message with the press of a button!\u003c\/p\u003e\u003ch2\u003eUser-Friendly and Easy to Use\u003c\/h2\u003e\u003cp\u003eNo complicated programming or setup required! Just connect your favorite speaker (an 8 ohm 0.5W is supported, and a larger 16 ohm speaker is included for better quality), power the module with 3V to 5V DC, and you’re ready to record. Press the record button, speak into the built-in microphone, and release the button to save your sound. Then, hit play to hear your recording anytime you want!\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect for beginners\u003c\/strong\u003e – integrate easily with any Arduino project or standalone setup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in microphone\u003c\/strong\u003e – capture clear voice or sound recordings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-second recording time\u003c\/strong\u003e – perfect for messages, sound effects, or music clips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple play modes\u003c\/strong\u003e – loop, jog playback, and single-pass play options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-chip control ready\u003c\/strong\u003e – can be managed by Arduino or other microcontrollers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect speaker drive\u003c\/strong\u003e – simply connect the included or your own small speaker\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 3V–5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording Time:\u003c\/strong\u003e Up to 10 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Support:\u003c\/strong\u003e 8 ohm 0.5W (included), 16 ohm (bonus speaker included at no extra charge!)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 37mm x 41mm (1.46\" x 1.61\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 23g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct ID:\u003c\/strong\u003e VUPN1916\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications \u0026amp; Ideas\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDIY sound greeting cards\u003c\/li\u003e\n\u003cli\u003eArduino voice recorder experiments\u003c\/li\u003e\n\u003cli\u003eCustom audio for toys, costumes, or art installations\u003c\/li\u003e\n\u003cli\u003ePersonal reminders or novelty gifts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose This Arduino Audio Recording Module?\u003c\/h2\u003e\u003cp\u003eEnjoy reliable, easy-to-use sound features for makers of all skill levels. 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No advanced electronics knowledge needed!\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879342215305,"sku":"VUPN1916","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn1916_a_voice_recording_module_a619b5ae-6ecd-47cd-a438-b7ac8b3578ca.jpg?v=1722913628"},{"product_id":"vupn2058_xh-a232_digital_stereo_audio_power_amplifier_board_d154","title":"XH-A232 Digital Stereo Audio Power Amplifier Board (D154)","description":"\u003ch1\u003eDigital Stereo Audio Power Amplifier Board – 30W+30W TPA3110 XH-A232\u003c\/h1\u003e\u003ch2\u003eEasy-to-Use Stereo Audio Power Amplifier for Everyday Audio\u003c\/h2\u003e\u003cp\u003eUpgrade your sound system with this compact and efficient \u003cstrong\u003edigital stereo audio power amplifier board\u003c\/strong\u003e. 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It’s great for upgrading home speakers, building your own audio system, or replacing worn-out amplifier boards. With its high efficiency and low distortion, your music and audio will sound better than ever.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e XH-A232 (TPA3110 based)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Type:\u003c\/strong\u003e Class D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e DC 8V – 26V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Current:\u003c\/strong\u003e 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 30W + 30W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Channels:\u003c\/strong\u003e 2 (stereo)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 4 – 8 Ohm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e 100dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard Size (LxWxH):\u003c\/strong\u003e 53 x 46 x 14 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct ID:\u003c\/strong\u003e VUPN2058\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBring Hi-Fi Sound to Your Next Project\u003c\/h2\u003e\u003cp\u003eWith plug-and-play convenience, outstanding performance, and a compact footprint, this \u003cstrong\u003eXH-A232 digital stereo audio power amplifier board\u003c\/strong\u003e is the perfect solution for anyone looking to enjoy high-quality audio without complicated setup. Take your next audio project to the next level today!\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879352078473,"sku":"VUPN2058","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2058_a_digital_stereo_amplifier_board_d5fff0d2-bc50-4b8e-b2d6-0669859a8b84.jpg?v=1722913826"},{"product_id":"vupn2213___8_megapixels_usb_camera_with_microphone_compatible_with_raspberry_pi-_lattepanda-_jetson_nano","title":"8 Megapixels USB Camera with Microphone (Compatible with Raspberry Pi\/ LattePanda\/ Jetson Nano)","description":"\u003cp\u003e8 Megapixels USB Camera with Microphone (Compatible with Raspberry Pi\/ LattePanda\/ Jetson Nano)\u003c\/p\u003e \u003ch4\u003eIntroduction\u003c\/h4\u003e \u003cp\u003e \u003c\/p\u003e \u003cdiv class=\"desCon\"\u003e \u003cp\u003eThis is an 8000K pixels driver-free camera of USB port with up to 3264*2448 resolution. Based on the Sony IMX179 CMOS sensor, it supports autofocus, plug, and play, offering HD photos and video. Compatible with multiple systems like Windows, iOS, Android, and Linux, this camera module comes with a digital microphone that captures the sound of 5 meters around the camera when recording video. The design of the USB port also makes it easier to use with your Raspberry Pi and Jetson Nano mainboard when they are placed in a protective case.\u003c\/p\u003e \u003cp\u003eWith a small size of 38mm*38mm, the camera can be embedded into various devices, and perfect for high-quality video system, biometrics recognition, industrial photography, HD monitoring, etc.\u003c\/p\u003e \u003c\/div\u003e \u003cp\u003e \u003c\/p\u003e \u003ch4\u003eSpecifications\u003c\/h4\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cul\u003e \u003cli\u003ePhotosensitive Element: CMOS\u003c\/li\u003e \u003cli\u003eSensor: Sony IMX179\u003c\/li\u003e \u003cli\u003eLens Size：1\/3.2inch\u003c\/li\u003e \u003cli\u003ePixel Dimension: 1.4μm\u003c\/li\u003e \u003cli\u003eAngle: 76°\u003c\/li\u003e \u003cli\u003eImage Area: 6.18mm*5.85mm\u003c\/li\u003e \u003cli\u003eMax Effective Resolution: 3264(H) X 2448(V)  8 Megapixel\u003c\/li\u003e \u003cli\u003eImage Output Format: JPEG \u003c\/li\u003e \u003cli\u003eSupported Resolution and Frame Rate: \u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e                 3264X2448 @ 15fps  \/ 2592X1944@ 15fps\u003cbr\u003e                  1920x1080 @ 30fps  \/ 1600X1200@ 30fps\u003cbr\u003e                  1280X720 @ 30fps  \/ 960X540@ 30fps\u003cbr\u003e                  800X600 @ 30fps   \/ 640X480@ 30fps\u003c\/p\u003e \u003cul\u003e \u003cli\u003eS\/N Ratio: 34dB\u003c\/li\u003e \u003cli\u003eDynamic Range: 72.5dB\u003c\/li\u003e \u003cli\u003eSensitivity: 0.65V\/lux-sec@550nm\u003c\/li\u003e \u003cli\u003eMini illumination: 0.5lux\u003c\/li\u003e \u003cli\u003eShutter Type: Electronic rolling shutter \/ Frame exposure\u003c\/li\u003e \u003cli\u003eInterface Type: USB2.0 High Speed\u003c\/li\u003e \u003cli\u003eDriver-free Protocol: USB Video Class（UVC）\u003c\/li\u003e \u003cli\u003eOTG Protocol: USB2.0 OTG\u003c\/li\u003e \u003cli\u003eAEC\/AEB\/AGC Support\u003c\/li\u003e \u003cli\u003eSupport photo taking by pressing button\u003c\/li\u003e \u003cli\u003eAdjustable Parameter: Brightness, Contrast, Saturation, Hue, Sharpness, Gamma, Gain, White balance, Backlight Contrast, Exposure\u003c\/li\u003e \u003cli\u003eCamera Parameter: high-speed photographic apparatus camera,   distortionless, size of 1\/3.2, Auto-focus, 75 degree\u003c\/li\u003e \u003cli\u003eFill Light Power Supply Port: 4P-2.0 socket\u003c\/li\u003e \u003cli\u003ePower Supply: USB BUS POWER  4P-2.0mm Socket\u003c\/li\u003e \u003cli\u003eOperating Voltage: DC 5V\u003c\/li\u003e \u003cli\u003eOperating Current: 160mA~260mA\u003c\/li\u003e \u003cli\u003eOperating Temperature: -10～70℃\u003c\/li\u003e \u003cli\u003eStorage Temperature: -20～85℃\u003c\/li\u003e \u003cli\u003eDimension: 38*38mm\/1.50*1.50”\u003c\/li\u003e \u003cli\u003eOS Supported:\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e                 WinXP\/Vista\/Win7\/Win8\u003cbr\u003e                  Linux with UVC（above linux-2.6.26）\u003cbr\u003e                  MAC-OS X 10.4.8 or later\u003cbr\u003e                  Wince with UVC\u003cbr\u003e                  Android 4.0 or above with UVC\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879358566537,"sku":"VUPN2213","price":42.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2213_a_8mp_usb_camera_microphone_2.jpg?v=1743789996"},{"product_id":"vupn2223_mini_laser_distance_range_finder_sensor_4m_i2c_ip67_d106b","title":"Mini Laser Distance Range Finder Sensor (4m, I2C, IP67) (D106B)","description":"\u003cp\u003eMini Laser Distance Range Finder Sensor (4m, I2C, IP67)\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIntroduction \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThis laser \u003ca href=\"https:\/\/www.dfrobot.com\/category-55.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edistance ranging sensor\u003c\/a\u003e has a compact size, comparable to the size of a fingernail, and a measurement range of up to 4m. It is specifically designed to address the issues commonly found in distance sensors on the market, such as large size, slow response time, and poor installation adaptability.\u003c\/p\u003e \u003cp\u003eIt boasts a range of advantages including small size, minimal blind zone (Measurement accuracy: ≤25cm@±1cm, \u0026gt;25cm@±S*4%cm), fast response time (19-38ms), high installation adaptability, dust and water resistance (IP67), long lifespan, and high reliability.\u003c\/p\u003e \u003cp\u003eThe sensor outputs data through an I2C interface, which allows users to easily integrate it with \u003ca href=\"https:\/\/www.dfrobot.com\/product-1009.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eArduino IO expansion boards\u003c\/a\u003e.\u003c\/p\u003e \u003cp\u003eIt finds widespread applications in various fields, including smart furniture with motion sensing capabilities, home security systems, intelligent detection systems, smart control systems, robot obstacle avoidance, and object proximity and presence detection.\u003c\/p\u003e \u003ch4\u003eFeatures\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003eCompact size and small blind zone\u003c\/li\u003e \u003cli\u003eLightweight and fast response time\u003c\/li\u003e \u003cli\u003eSimple to use with I2C output\u003c\/li\u003e \u003cli\u003eIP67 waterproof rating\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003ch4\u003eApplications\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003eSmart furniture with motion sensing capabilities\u003c\/li\u003e \u003cli\u003eHome security systems\u003c\/li\u003e \u003cli\u003eIntelligent detection systems\u003c\/li\u003e \u003cli\u003eSmart control systems\u003c\/li\u003e \u003cli\u003eRobot obstacle avoidance\u003c\/li\u003e \u003cli\u003eObject proximity and presence detection\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003ch4\u003eSpecification\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003eMeasurement range: 2-400cm.\u003c\/li\u003e \u003cli\u003eMeasurement accuracy: ≤25cm@±1cm, \u0026gt;25cm@±S*4%cm (with an actual error of around 5mm).\u003c\/li\u003e \u003cli\u003eOperating voltage: 3.3-5V.\u003c\/li\u003e \u003cli\u003eIdle current: 2mA.\u003c\/li\u003e \u003cli\u003eOperating current: ＜19mA.\u003c\/li\u003e \u003cli\u003eCommunication method: I2C.\u003c\/li\u003e \u003cli\u003eOutput response time: 19-38ms.\u003c\/li\u003e \u003cli\u003ePower-on delay time: ≤800ms.\u003c\/li\u003e \u003cli\u003eDetection angle: 19°.\u003c\/li\u003e \u003cli\u003eOperating temperature: -15°C ~ 60°C.\u003c\/li\u003e \u003cli\u003eOperating humidity: 65% ~ 80%RH.\u003c\/li\u003e \u003cli\u003eStorage temperature: -30°C ~ 80°C.\u003c\/li\u003e \u003cli\u003eStorage humidity: 65% ~ 90%RH.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003ch4\u003eDocuments\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/Laser_Ranging_Sensor_4m_SKU_SEN0590\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eProduct wiki\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003ch4\u003eShipping List\u003c\/h4\u003e \u003cdiv class=\"desCon\"\u003e \u003cul\u003e \u003cli\u003eLaser Ranging Sensor (4m) x1\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879358992521,"sku":"VUPN2223","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2223_a_compact_laser_distance_sensor_2_03d7acd9-3a08-46c1-a39b-3b7953e9d67a.jpg?v=1743786315"},{"product_id":"vupn2267_ai_offline_language_learning_voice_recognition_sensor_-_arduino_raspberry_pi_esp32_-_i2c_uart","title":"AI Offline Language Learning Voice Recognition Sensor - Arduino, Raspberry Pi, ESP32 - I2C UART","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is voice recognition? \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVoice recognition is a computer technology that recognizes and converts speech signals into editable text or operational commands through analysis. It allows people to interact with computers by speaking without using a mouse, keyboard, or other input devices. Voice recognition technology has been widely used in applications such as voice assistants, smart homes, voice search, and voice recognition notebooks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Gravity: offline language learning voice recognition sensor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGravity: offline speech recognition sensor is built around an offline voice recognition chip, which can be directly used without an internet connection. It comes with 121 built-in fixed command words and supports the addition of 17 custom command words. Meanwhile, this voice recognition module compatibility with multiple common controllers enables it to provide a flexible solution for makers and electronics enthusiasts in terms of voice interaction. It can be applied to any application that requires voice control or interaction, such as various smart home appliances, toys, lighting fixtures, and robotics projects, among others.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelf-Learning Function\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe voice recognition module is equipped with a self-learning function and supports the addition of 17 custom command words. Any sound could be trained as a command, such as whistling, snapping, or even cat meows, which brings great flexibility to interactive audio projects.\u003c\/p\u003e\n\u003cp\u003eFor instance automatic pet feeder. When a cat emits a meow, the offline voice recognition module can recognize the meow and trigger the feeder to automatically provide food for the cat. This innovative design ensures that the owner can promptly meet the cat's dietary needs. Moreover, the product is equipped with excellent noise resistance and long-distance recognition capabilities, allowing for precise identification of the cat's meows even in noisy environments.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto; object-fit: cover;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2267_f_offline_voice_recognition_sensor_53f62df9-b2f8-4c2f-9c79-30004bcfe77e.jpg?v=1722914101\" alt=\"\" width=\"704\" height=\"352\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eFigure: Voice Recognition Sensor Self-Learning Function\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser-Friendly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe offline speech recognition sensor boasts a user-friendly design. It comes with 121 built-in fixed command words, eliminating the need for users to record their own voices.\u003c\/p\u003e\n\u003cp\u003eFor instance, in an intelligent window system, when it starts to rain or thunder, there's no need for manual window operation. The offline voice recognition module can recognize the pre-set command word \"close the window,\" triggering the automatic closing of the window to cope with sudden weather changes.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto; object-fit: cover;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2267_g_offline_voice_recognition_sensor_3d89fb3c-ff17-4763-bb64-d701b73e97ae.png?v=1722914101\" alt=\"\" width=\"702\" height=\"368\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eFigure: 121 built-in fixed command words\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReal-Time Voice Feedback\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe language learning voice recognition module features a dual microphone design with better noise resistance and a longer recognition distance, making it relatively accurate and reliable even in noisy environments. It comes with a built-in speaker and an external speaker interface for real-time voice feedback of recognition results.\u003c\/p\u003e\n\u003cp\u003eFor instance, one can wake up a voice assistant using a wake-up word, and the assistant promptly responds and begins learning or utilizing command words. When learning or deleting command words, the voice assistant also provides immediate feedback on the success of the operation. This greatly enhances the user's experience and convenience.\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto; object-fit: cover;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2267_h_offline_voice_recognition_sensor_4e6d54c0-e7d3-468d-acd6-c2615beb81a0.png?v=1722914101\" alt=\"\" width=\"698\" height=\"349\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eFigure: Real-Time Voice Feedback\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module boasts high compatibility, supporting both I2C and UART communication methods, while also being compatible with various 3.3V or 5V controllers. This provides a flexible solution for building smart home systems, robotics projects, and more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe pros and cons of offline and online voice recognition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"2\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOffline Speech Recognition\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1. Quickly respond to corresponding command words and instructions.\u003c\/p\u003e\n\u003cp\u003e2. No need for a network.\u003c\/p\u003e\n\u003cp\u003e3. If speech recognition fails, it will not affect the use of other product functions.\u003c\/p\u003e\n\u003cp\u003e4. More secure privacy, users don't have to worry about their conversation content being recorded and uploaded to the cloud.\u003c\/p\u003e\n\u003cp\u003e5. Small module size, convenient for embedding in applications.\u003c\/p\u003e\n\u003cp\u003e6. Cheaper price.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eCommand words are fixed, and there may be limitations on the number and length of words.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOnline Speech Recognition\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1. Consumers are easy to use and not limited to command words.\u003c\/p\u003e\n\u003cp\u003e2. Easy to develop, and there are many solutions in the market.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1. Requires network connection to connect to the cloud.\u003c\/p\u003e\n\u003cp\u003e2. Response speed depends on the network speed.\u003c\/p\u003e\n\u003cp\u003e3. Higher cost.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-learning function: Control the module to learn command words by the voice, and any audio can be trained as a command\u003c\/li\u003e\n\u003cli\u003eSupport I2C and UART, with a Gravity interface\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.3V\/5V\u003c\/li\u003e\n\u003cli\u003eBuilt-in with 121 commonly-used fixed command words\u003c\/li\u003e\n\u003cli\u003eThe module has a built-in speaker and an interface for an external speaker, which can provide real-time voice feedback on recognition results\u003c\/li\u003e\n\u003cli\u003eEquipped with power indicator (red) and recognition status indicator (blue)\u003c\/li\u003e\n\u003cli\u003eDual microphones provide better noise resistance and longer recognition distance\u003c\/li\u003e\n\u003cli\u003eCompatible with Arduino controllers: Arduino UNO, Arduino Leonardo, Arduino MEGA, FireBeetle series controllers, Raspberry Pi, ESP32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch4\u003eApplications:\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eVoice recognition interaction\u003c\/li\u003e\n\u003cli\u003eVoice-controlled terminal\u003c\/li\u003e\n\u003cli\u003eCompetition and project development\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSpecifications:\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3.3 - 5V\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Current: ≤370 mA (5V)\u003c\/li\u003e\n\u003cli\u003eCommunication: I2C\/UART\u003c\/li\u003e\n\u003cli\u003eI2C Address: 0x64\u003c\/li\u003e\n\u003cli\u003eFixed Command: 121\u003c\/li\u003e\n\u003cli\u003eFixed Wake-up Command: 1\u003c\/li\u003e\n\u003cli\u003eCustom Command: 17\u003c\/li\u003e\n\u003cli\u003eLearning Activation Command: 1\u003c\/li\u003e\n\u003cli\u003eOnboard Microphone Sensitivity: -28db\u003c\/li\u003e\n\u003cli\u003eModule Size: 49×32 mm\/1.93×1.26”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWill be discontinued after last unit sells.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879362891913,"sku":"VUPN2267","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2267_a_offline_voice_recognition_sensor_2.jpg?v=1743791436"},{"product_id":"vupn2315_electromagnetic_latch_lock_-_12v_dc","title":"Electromagnetic Latch Lock - 12V DC","description":"\u003ch1\u003eEasy-to-Install 12V Electromagnetic Latch Lock\u003c\/h1\u003e\u003ch2\u003eReliable and Secure Electromagnetic Lock for Any Project\u003c\/h2\u003e\u003cp\u003eLooking for a simple and effective way to add security to your cabinets, drawers, or showcase doors? Our 12V electromagnetic latch lock is designed for everyday use, offering strong protection and effortless operation. This compact electric solenoid lock is ideal for home security projects, DIY builds, and small automation systems.\u003c\/p\u003e\u003ch2\u003eFeatures and Benefits of the 12V Electromagnetic Latch Lock\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEasy Installation:\u003c\/b\u003e Just connect the two control wires—red (+) and black (–)—for quick setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEffortless Locking \u0026amp; Unlocking:\u003c\/b\u003e Simply apply 12V DC power to unlock; cut power to lock. Perfect for electric cabinet locks and secure storage solutions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Materials:\u003c\/b\u003e The shell is finished in electroless nickel plating for rust and corrosion resistance. The bolt and lock hole are crafted from pure copper, ensuring smooth movement and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Use:\u003c\/b\u003e Rotate the bolt to 90°, 180°, or 270° so you can install this 12V electromagnetic lock in nearly any position or with any type of door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLong-Lasting Performance:\u003c\/b\u003e Engineered for good heat resistance and a long service life, making it a dependable choice for everyday applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOperating Voltage: 12V DC\u003c\/li\u003e\n\u003cli\u003eOperating Current: 0.4A\u003c\/li\u003e\n\u003cli\u003eContinuous Operation: Electrify time is unlimited for convenience\u003c\/li\u003e\n\u003cli\u003eStroke (Bolt Travel): 10mm\u003c\/li\u003e\n\u003cli\u003eSuction Force: ≤1N (0.1kg)\u003c\/li\u003e\n\u003cli\u003eOperating Principle: Power on retracts the lock, power off pops the lock out\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions: 55mm x 23mm x 28mm (2.17\" x 0.91\" x 1.10\")\u003c\/li\u003e\n\u003cli\u003eMaterial: Nickel-plated shell, pure copper coil, pure copper bolt\u003c\/li\u003e\n\u003cli\u003eRecommended Use: Pair with a rectifier diode to protect your circuit from backfeed current\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePerfect For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eElectromagnetic cabinet locks\u003c\/li\u003e\n\u003cli\u003e12V DC door lock replacements\u003c\/li\u003e\n\u003cli\u003eDrawer security\u003c\/li\u003e\n\u003cli\u003eStorage cabinets\u003c\/li\u003e\n\u003cli\u003eShowcases and vending machines\u003c\/li\u003e\n\u003cli\u003eDIY home automation projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eProduct ID: VUPN2315\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879368069257,"sku":"VUPN2315","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn2315_a_12v_electromagnetic_latch_lock_2.jpg?v=1743788590"},{"product_id":"vupn2317_photoelectric_high_accuracy_liquid_level_sensor_for_arduino_d156","title":"Photoelectric High Accuracy Liquid Level Sensor for Arduino (D156)","description":"\u003ch1\u003ePhotoelectric Liquid Level Sensor for Arduino – High Accuracy, Easy to Use\u003c\/h1\u003e\u003ch2\u003eReliable Liquid Level Detection for Everyday Projects\u003c\/h2\u003e\u003cp\u003eLooking for an easy-to-use liquid level sensor for your next Arduino project? This \u003cstrong\u003ephotoelectric liquid level sensor\u003c\/strong\u003e uses optical technology for high accuracy detection without any moving parts. 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You can call us for specific item pictures if you wish.\u003cbr\u003e\u003cbr\u003e QTY: 1 x Arduino 3S Motor Driver Shield\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879379996809,"sku":"VUPN5799","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn5799_a_motor_driver_shield_2c5a3c53-9fb0-406b-bab6-ddc6334889be.jpg?v=1722914358"},{"product_id":"vupn5915_3-axis_accelerometer_board_mma7361_for_arduino_d10","title":"3-Axis Accelerometer Board (MMA7361) for Arduino (D10)","description":"\u003cp\u003e3-Axis Accelerometer Board (MMA7361) for Arduino\u003cbr\u003e\u003cbr\u003eThis Accelerometer module is based on the popular Freescale MMA7361 three-axis analog accelerometer IC, which reads off the X, Y and Z acceleration as analog voltages. The accelerometer is very easy interface to an Arduino Microcontroller using 3 analog input pins, and can be used with most other microcontrollers, such as the PIC or AVR. \u003cbr\u003eThis module comes complete with 0.1\" pitch pin headers soldered on, so it fits directly into a breadboard or prototype shield. This module's onboard voltage regulator allows for convenient operation at either 3.3 volts or 5 volts - a feature not found on the competitor's modules. No additional external components are required for operation. A sample hookup diagram for the Arduino UNO is below. \u003cbr\u003e\u003cbr\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2x5 pin 0.1\" pitch pin headers\u003c\/li\u003e\n\u003cli\u003eTwo sensitivity modes ±1.5G and ±6G\u003c\/li\u003e\n\u003cli\u003e5VDC \u0026amp; 3.3VDC operation\u003c\/li\u003e\n\u003cli\u003e0G detect pin (for linear Free-Fall detection)\u003c\/li\u003e\n\u003cli\u003eSleep Mode to save on power\u003c\/li\u003e\n\u003cli\u003eIntegrated 1 pole low pass filter\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation\u003c\/li\u003e\n\u003cli\u003eSelf Test Mode for easy troubleshooting\u003c\/li\u003e\n\u003cli\u003eNOTE: It has been suggested that you need to use a 10K resistor to the sleep pin to power on the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable class=\"emt attributeBoxContent\" border=\"1\"\u003e\n\u003ccaption\u003epinout\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003epin label on on the 12-pin variety\u003c\/th\u003e\n\u003cth\u003epin label on the 10-pin variety\u003c\/th\u003e\n\u003cth\u003eMMA7361 pin\u003c\/th\u003e\n\u003cth\u003esignal name\u003c\/th\u003e\n\u003cth\u003esignal description\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003ctd\u003e3V3\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eV\u003csub\u003eDD\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003epower supply input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eV\u003csub\u003eSS\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003eground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eX\u003csub\u003eout\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003eX direction output voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eY\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eY\u003csub\u003eout\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003eY direction output voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eZ\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eZ\u003csub\u003eout\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003eZ direction output voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003eSL\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e\u003cspan style=\"text-decoration: overline;\"\u003esleep\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003elogic input pin to enable sleep mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003enot connected\u003c\/td\u003e\n\u003ctd\u003eno internal connection - leave unconnected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e0G\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e0g-detect\u003c\/td\u003e\n\u003ctd\u003elinear freefall digital logic output signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eGS\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003esensitivity mode selection\u003c\/td\u003e\n\u003ctd\u003eWhen this pin is grounded or floating, the sensitivity is ±1.5G. Pull this pin high to enable the ±6G sensitivity mode.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003enot connected\u003c\/td\u003e\n\u003ctd\u003eunused - for factory trim - leave unconnected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003eST\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003eself test\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003enot connected\u003c\/td\u003e\n\u003ctd\u003eunused - for factory trim - leave unconnected.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe MMA7361 IC, which lies at the heart of this module, has a logic input pin called \"g-select\" that is used to select one of two different sensitivity modes. In the default mode, which is selected by leaving g-select unconnected, the analog outputs reach their maximal level at ± 1.5g. This mode is well-suited for measuring the direction of Earth's gravitational field when the module is not accelerating.\u003c\/p\u003e\n\u003cp\u003eIf you ground the g-select pin, then you tell the accelerometer to scale its analog outputs to ±6g. This mode works well when you want to measure acceleration caused by motion, whose magnitude can easily exceed the other mode's ±1.5g ceiling.\u003c\/p\u003e\n\u003cp\u003eThis accelerometer module operates in the ±1.5g mode by default. To turn on the ±6g mode, bridge the solder pads labeled \"R2\".\u003c\/p\u003e\n\u003cp\u003eApplications for this device on your Arduino include navigation, motion sensing, speed\/movement data logging, etc. Hey, you could make an Arduino-based pedometer. The accelerometer board is a great add-on for your Arduino projects.\u003c\/p\u003e\n\u003cp\u003eDepending on availability from the manufacturer, we stock either the 12-pin or the 10-pin variant of this module, both of which are listed as VUPN5915. Only the 12-pin module is pictured here. Here are the differences between the two variants: \u003cbr\u003eThe 12-pin module provides header pin breakouts for MMA7361 pin 8 (not internally connected), MMA7361 pin 12 (factory trim), and MMA7361 pin 14 (factory trim); the 10-pin variant does not provide these breakouts. None of these pins is used during normal operation of the module. \u003cbr\u003eThe 12-pin variant provides access to MMA7361 pin 10 (sensitivity mode selection) via a surface-mount solder pad; the 10-pin variant breaks that MMA7361 pin out to a header pin, labeled \"GS\".\u003c\/p\u003e\n\u003cp\u003eSome may have the headers soldered to the units, some may not. We can not refund or assist with either situation. Please be aware of this BEFORE purchasing.\u003c\/p\u003e\n\u003cp\u003eQTY: 1 x 3-Axis Accelerometer Board (MMA7361) for Arduino\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879380324489,"sku":"VUPN5915","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/VUPN5915_B_3-Axis_Accelerometer_MMA7361.jpg?v=1729117191"},{"product_id":"vupn5921_digital_thermometer_-_hygrometer_sensor_module_dht11_for_arduino_d12","title":"Digital Thermometer \/ Hygrometer Sensor Module (DHT11) for Arduino (D12)","description":"\u003ch1\u003eDigital Thermometer and Hygrometer Sensor Module – DHT11 for Arduino\u003c\/h1\u003e\u003ch2\u003eEasy Arduino Temperature and Humidity Sensor – DHT11 Module\u003c\/h2\u003e\u003cp\u003eUpgrade your Arduino projects with this digital thermometer and hygrometer sensor module featuring the reliable DHT11 sensor. Perfect for beginners and hobbyists, this sensor module makes tracking temperature and humidity simple and accurate. Whether you’re creating a DIY weather station, a smart home setup, or an environmental monitoring system, this affordable DHT11 sensor is your go-to solution.\u003c\/p\u003e\u003ch2\u003eKey Features of the DHT11 Temperature and Humidity Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAccurately measures temperature from 0°C to 50°C (32°F to 122°F, ±1°C accuracy)\u003c\/li\u003e\n\u003cli\u003eMonitors humidity from 20%RH to 90%RH (±4%RH accuracy)\u003c\/li\u003e\n\u003cli\u003eDigital single-wire communication for easy connection to Arduino boards\u003c\/li\u003e\n\u003cli\u003eLow power consumption – wakes up only when needed\u003c\/li\u003e\n\u003cli\u003eBreadboard-friendly 0.1\" header pins for easy prototyping\u003c\/li\u003e\n\u003cli\u003eIntegrated 10K pull-up resistor on the data line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Data \u0026amp; Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3VDC to 5.5VDC\u003c\/li\u003e\n\u003cli\u003eOutput Signal: Digital serial data (single-wire)\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0°C to 50°C (32°F to 122°F)\u003c\/li\u003e\n\u003cli\u003eTemperature Accuracy: ±1°C\u003c\/li\u003e\n\u003cli\u003eHumidity Range: 20%RH to 90%RH\u003c\/li\u003e\n\u003cli\u003eHumidity Accuracy: ±4%RH\u003c\/li\u003e\n\u003cli\u003eResponse Time: \u0026lt;5 seconds\u003c\/li\u003e\n\u003cli\u003eModule Size: Compact, fits easily on standard breadboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePinout Details\u003c\/h2\u003e\u003ctable style=\"border:1px solid black;\"\u003e\n\u003ccaption style=\"border:1px solid black;\"\u003ePinout\u003c\/caption\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cul\u003e\n\u003cli\u003ePin 1: VDD (3VDC – 5.5VDC)\u003c\/li\u003e\n\u003cli\u003ePin 2: Serial Data\u003c\/li\u003e\n\u003cli\u003ePin 3: Not connected\u003c\/li\u003e\n\u003cli\u003ePin 4: GND\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose the DHT11 Module for Arduino?\u003c\/h2\u003e\u003cp\u003eThe DHT11 digital thermometer and humidity sensor module is one of the simplest ways to add accurate environmental sensing to your Arduino projects. With straightforward wiring, minimal code, and reliable results, it’s a favorite in classrooms, workshops, and home labs. Every DHT11 hygrometer module is quality-checked and easy to integrate into your next electronic project.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e 1 x Digital Thermometer \/ Hygrometer Sensor Module (DHT11) for Arduino (VUPN5921)\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879380357257,"sku":"VUPN5921","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn5921_a_digital-thermometer-hygrometer-sensor-module-dht11-for-ardui.jpg?v=1784765918"},{"product_id":"vupn5925_touch_sensitive_switch_module_arduino_d17","title":"Touch Sensitive Switch Module Arduino (D17)","description":"Touch Sensitive Switch Module Arduino\u003cbr\u003e\u003cbr\u003e This is a touch sensitive switch - much like the kind used on \"touch lamps\". This module acts like a momentary switch that is actuated when the base-leg of the transistor is touched. The output of the module gets pulsed to high when the transistor lead is touched, this can be fed into an input on the arduino to trigger just about any action. For example, you could use this as a touch-sensitive switch for a system that would dim all the lights in your home theater room.\u003cbr\u003e\u003cbr\u003e This is a simple circuit consisting of an MPSA13 NPN Transistor and an LM393 voltage comparator IC. A handfull of resistors, two SMD LEDs and a sensitivity adjustment potentiometer complete this module. The touch sensor its self is simply the base of the MPSA13 transistor.\u003cbr\u003e \u003cbr\u003e This is easy to hook up, there are four 0.1\" header pins. It can be plugged into a breadboard. The outputs are as follows:\u003cul\u003e \u003cli\u003e+V (3-5VDC in) \u003c\/li\u003e \u003cli\u003eGND \u003c\/li\u003e \u003cli\u003eA0 (We think this is an analog output - the voltage of the pulse may be dependent on the input voltage) - For most applications this pin should not be used. \u003c\/li\u003e \u003cli\u003eD0 (We think this is a digital output - the pin will pulse high when the sensor is touched) \u003c\/li\u003e \u003c\/ul\u003e The potentiometer adjusts the sensitivity of the module. It may take some experimentation to get it \"dialed in\" for your project.\u003cbr\u003e \u003cbr\u003e QTY: 1 x Touch Sensitive Switch Module Arduino\u003cbr\u003e \u003cbr\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879380390025,"sku":"VUPN5925","price":4.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn5925_b_touch-sensitive_switch_module_2.jpg?v=1744138179"},{"product_id":"vupn5949_single_relay_module_for_arduino_d25","title":"Single Relay Module for Arduino (D25)","description":"\u003cp\u003eSingle Relay Module for Arduino\u003cbr\u003e \u003cbr\u003e This board features a SPDT relay that can be controlled directly from the digital output pins on the Arduino or other microcontroller. The relay module has a built-in transistor and clamping diode, and an LED lights up when the relay coil is energized. This is a great and inexpensive way to switch on or off AC or DC loads using your Arduino! And its now opto-isolated!\u003cbr\u003e \u003cbr\u003e This board is simple to hook up, the 3-Pin male header carries a 5VDC coil voltage and the \"on\" input signal. An external load is connected via a set of sturdy screw terminals. Terminals are provided for both normally closed and normally open operation. \u003cbr\u003e Relay Specifications:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eType: SPDT (Singe Pole Double Throw)\u003c\/li\u003e \u003cli\u003eOptoIsolated\u003c\/li\u003e \u003cli\u003eCoil Voltage: 5VDC\u003c\/li\u003e \u003cli\u003eContact Rating: 10A 250VAC\/10A 125VAC\/10A 30VDC\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cbr\u003e QTY: 1 x Single Relay Module for Arduino\u003c\/p\u003e \u003cp\u003eNOTE\u003c\/p\u003e \u003cp\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c\/p\u003e \u003cp\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c\/p\u003e \u003cp\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c!-- [if gte mso 10]\u003e \u003cstyle\u003e  \/* Style Definitions *\/  table.MsoNormalTable \t{mso-style-name:\"Table Normal\"; \tmso-tstyle-rowband-size:0; \tmso-tstyle-colband-size:0; \tmso-style-noshow:yes; \tmso-style-priority:99; \tmso-style-parent:\"\"; \tmso-padding-alt:0in 5.4pt 0in 5.4pt; \tmso-para-margin-top:0in; \tmso-para-margin-right:0in; \tmso-para-margin-bottom:8.0pt; \tmso-para-margin-left:0in; \tline-height:107%; \tmso-pagination:widow-orphan; \tfont-size:11.0pt; \tfont-family:\"Calibri\",sans-serif; \tmso-ascii-font-family:Calibri; \tmso-ascii-theme-font:minor-latin; \tmso-hansi-font-family:Calibri; \tmso-hansi-theme-font:minor-latin; \tmso-bidi-font-family:\"Times New Roman\"; \tmso-bidi-theme-font:minor-bidi;} \u003c\/style\u003e \u003c![endif]--\u003e\u003c\/p\u003e \u003cp class=\"MsoNormal\"\u003eThe part numbers shown in the photos are not necessarily the part numbers you will receive. In fact, you should NOT assume that you will get any part numbers shown in the photos. These are imported items and the manufacturers do NOT tell us what the individual component part numbers are ahead of time. This is not something that we can special request. It is also not possible for us to routinely update the pictures on our website for incidental individual component part number differences. However, the item you receive, as a whole, will be exactly as functional as the one listed in the description. There will be color differences, board sizes differences and or individual component differences. If you have special requirements, you MUST contact us BEFORE ordering or immediately afterwards. We are here to, and can help!\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003c!-- [if gte mso 10]\u003e \u003cstyle\u003e  \/* Style Definitions *\/  table.MsoNormalTable \t{mso-style-name:\"Table Normal\"; \tmso-tstyle-rowband-size:0; \tmso-tstyle-colband-size:0; \tmso-style-noshow:yes; \tmso-style-priority:99; \tmso-style-parent:\"\"; \tmso-padding-alt:0in 5.4pt 0in 5.4pt; \tmso-para-margin-top:0in; \tmso-para-margin-right:0in; \tmso-para-margin-bottom:8.0pt; \tmso-para-margin-left:0in; \tline-height:107%; \tmso-pagination:widow-orphan; \tfont-size:11.0pt; \tfont-family:\"Calibri\",sans-serif; \tmso-ascii-font-family:Calibri; \tmso-ascii-theme-font:minor-latin; \tmso-hansi-font-family:Calibri; \tmso-hansi-theme-font:minor-latin; \tmso-bidi-font-family:\"Times New Roman\"; \tmso-bidi-theme-font:minor-bidi;} \u003c\/style\u003e \u003c![endif]--\u003e\u003c\/p\u003e \u003cp\u003eLocated behind the front counter, Orange Dot #25\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879381209225,"sku":"VUPN5949","price":5.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn5949_a_spdt_relay_module_2a5611a3-5bf6-44d5-83c5-e4c3ee0776ab.png?v=1722914379"},{"product_id":"vupn5978_real_time_clock_module_ds1307_for_arduino_d31","title":"Real Time Clock Module (DS1307) for Arduino (D31)","description":"\u003cp\u003eReal Time Clock Module (DS1307) for Arduino\u003cbr\u003e\u003cbr\u003eWhat time is it? The DS1307 Real Time Clock Chip knows. This tiny module will provide your project with an very accurate clock - sending the year, month, day, hour, minute and second as I2C serial data. The internal clock on an Arduino and most other microcontrollers tends to drift over time. After long periods, the internal clock may be off by several minutes or worse! Accurate clocks are important for logging data, synchronizing events, etc.\u003cbr\u003e\u003cbr\u003eThe module has it's own battery backup - The included CR2032 lithium coin-cell battery is capable of running this module for 10 years. \u003cbr\u003e\u003cbr\u003eAs an added bonus, the real time clock module includes 32Kb serial eeprom chip (24C32). Accessing this storage space from an Arduino or other microcontroller is easy over the I2C serial bus.\u003cbr\u003eThis module is well supported in the Arduino IDE with the RTC library. It is also easy to hook up, only 5 wires are necessary for operation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVCC - (5VDC when talking to the module - the module goes to sleep when this voltage is not present.\u003c\/li\u003e\n\u003cli\u003eGND\u003c\/li\u003e\n\u003cli\u003eSCL (I2C Clock)\u003c\/li\u003e\n\u003cli\u003eSDA (I2C Data)\u003c\/li\u003e\n\u003cli\u003eSQW (Optional - Square Wave Output)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn excellent tutorial for using a similar RTC module is located here: \u003ca href=\"https:\/\/bit.ly\/bAP8eP\" rel=\"noopener noreferrer\" target=\"_blank\"\u003ehttps:\/\/bit.ly\/bAP8eP\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c!-- [if gte mso 9]\u003e\u003c![endif]--\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThese come in a verity of shapes and sizes, BUT the two different ones in the image above are the most common and likely the one we will have in stock. If you have a specific need for a specific shape or size unit, please contact us BEFORE ordering. Battery NOT included!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eDimensions:1+1\/8\" x 1\"\u003cbr\u003eQTY: 1 x Real Time Clock Module (DS1307) for Arduino\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879381635209,"sku":"VUPN5978","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn5978_a_accurate_arduino_clock_module_2.jpg?v=1744137300"},{"product_id":"vupn597_pulse_sensor_heart_rate_sensor_d11","title":"Pulse Sensor Heart Rate Sensor (D11)","description":"\u003ch1\u003ePulse Sensor Heart Rate Sensor – Easy DIY Heart Rate Monitoring\u003c\/h1\u003e\n\u003ch2\u003ePlug and Play Heart Rate Sensor for Arduino \u0026amp; Raspberry Pi\u003c\/h2\u003e\n\u003cp\u003eLooking for a simple way to add real-time heart rate monitoring to your next Arduino or Raspberry Pi project? The Pulse Sensor Heart Rate Sensor is designed for everyday makers and beginners, making it easy and affordable to track your pulse and heart rate at home, in the classroom, or on the go.\u003c\/p\u003e\n\u003ch2\u003eKey Features – Reliable Pulse Monitoring for Everyone\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePlug and play design – start measuring in minutes\u003c\/li\u003e\n\u003cli\u003eCompact and perfect for embedding in wearables\u003c\/li\u003e\n\u003cli\u003eCompatible with any microcontroller featuring an analog input (ADC)\u003c\/li\u003e\n\u003cli\u003eWorks on both 3.3V and 5V systems\u003c\/li\u003e\n\u003cli\u003eIncludes a well-supported, easy-to-use Arduino library\u003c\/li\u003e\n\u003cli\u003eOpen source hardware and software – ideal for learning and customization\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow the Pulse Sensor Heart Rate Sensor Works\u003c\/h2\u003e\n\u003cp\u003eThis heart rate sensor uses an APDS-9008 ambient light sensor and a high-brightness green LED to sense your pulse. It detects small changes in reflected light as blood pulses through your fingertip or earlobe and outputs a clean, readable analog pulse signal. Pair it with Arduino, Raspberry Pi, or almost any other microcontroller for instant heart rate monitoring.\u003c\/p\u003e\n\u003cp\u003eFind detailed setup guides and example code to get started here: \u003ca href=\"https:\/\/pulsesensor.com\/pages\/code-and-guide\" rel=\"noopener\" target=\"_blank\"\u003ePulse Sensor Guides\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSensor model: Based on APDS-9008\u003c\/li\u003e\n\u003cli\u003eInput Voltage: 3V – 5.5V\u003c\/li\u003e\n\u003cli\u003eSupply Current: 3 – 4 mA\u003c\/li\u003e\n\u003cli\u003eOutput: Analog voltage (pulse signal)\u003c\/li\u003e\n\u003cli\u003ePackage includes: 1 Pulse Sensor Heart Rate Sensor (D11) and one set of 3-wire jumper leads.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eNOTE: these no longer come with the leads or header pins attached to them.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerfect for DIY Heart Rate Monitors and Wearable Devices\u003c\/h2\u003e\n\u003cp\u003eGreat for students, hobbyists, and even fitness tinkerers, this pulse sensor heart rate monitor makes it easy to add live heart rate feedback to your electronics projects. Monitor your pulse for wellness projects, exercise applications, or fun science experiments!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: these no longer come with the leads or header pins attached to them. We can not accept requests to solder the leads to these sensors. 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Transform your creative ideas into reality with this essential addition to your \u003cstrong\u003eArduino rain sensor\u003c\/strong\u003e kit!\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct ID: VUPN600\u003c\/em\u003e\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879381897353,"sku":"VUPN600","price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn600_a_rain_sensor_for_arduino_baa8d029-3abd-4de4-b453-85cc026072f3.jpg?v=1722914400"},{"product_id":"qmc5883l-gy-271-3-axis-compass-magnetometer-sensor-module-for-arduino-d16","title":"QMC5883L (GY-271) 3-axis Compass Magnetometer Sensor Module For Arduino (D16)","description":"\u003ch1\u003e\n\u003cspan data-testid=\"ux-textual-display\" aria-hidden=\"true\" tabindex=\"-1\"\u003e\u003cspan class=\"ux-textspans\"\u003eQMC5883L\u003c\/span\u003e\u003c\/span\u003e GY-271 3-Axis Compass Magnetometer Sensor Module for Arduino\u003c\/h1\u003e\n\u003ch2\u003eEasy Arduino Compass with the \u003cspan data-testid=\"ux-textual-display\" aria-hidden=\"true\" tabindex=\"-1\"\u003e\u003cspan class=\"ux-textspans\"\u003eQMC5883L\u003c\/span\u003e\u003c\/span\u003e GY-271 Sensor Module\u003c\/h2\u003e\n\u003cp\u003eUnlock the world of navigation and orientation with the \u003cspan data-testid=\"ux-textual-display\" aria-hidden=\"true\" tabindex=\"-1\"\u003e\u003cspan class=\"ux-textspans\"\u003eQMC5883L\u003c\/span\u003e\u003c\/span\u003e 3-axis compass magnetometer sensor module. 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Designed for simplicity and durability, this digital temperature sensor uses Maxim's 1-Wire technology for easy, single-cable communication and power.\u003c\/p\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Measurement Range:\u003c\/strong\u003e Measure temperatures from -55°C to +125°C, perfect for both indoor and outdoor environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e Delivers precise readings, accurate to ±0.5°C between -10°C and +85°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Probe:\u003c\/strong\u003e Fully sealed stainless steel probe makes it great for wet or damp conditions—ideal for aquariums, hydroponics, food processing, weather stations, and more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Wiring:\u003c\/strong\u003e Uses the 1-Wire interface, enabling easy hookup and the ability to connect multiple sensors on the same wire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino Compatible:\u003c\/strong\u003e Includes a handy breakout board with built-in pullup resistor and decoupling capacitor for fast, trouble-free connection to your Arduino.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnique 64-Bit Serial Code:\u003c\/strong\u003e Each sensor is factory-programmed with a unique address, allowing you to use several sensors at once.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e DS18B20 (VUPN617)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -55°C to +125°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision:\u003c\/strong\u003e ±0.5°C accuracy between -10°C and +85°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol:\u003c\/strong\u003e 1-Wire digital interface (parasitic power supported)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Size:\u003c\/strong\u003e 6mm diameter, 50mm length (approximate)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e About 1 meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Arduino projects, Raspberry Pi temperature sensing, air conditioning, heating, greenhouse monitoring, and much more\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuick Start Resources\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ds18b20.pdf\" target=\"_blank\"\u003eDS18B20 Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/playground.arduino.cc\/Learning\/OneWire\" target=\"_blank\"\u003eArduino 1-Wire Library \u0026amp; Tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUpgrade your DIY electronics with this dependable, easy-to-use waterproof DS18B20 temperature sensor—no engineering degree required!\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":42879382552713,"sku":"VUPN617","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/vupn617_a_waterproof_temperature_sensor_2.jpg?v=1743725676"},{"product_id":"vupn6319_audio_-_sound_sensor_for_arduino_d38","title":"Audio \/ Sound Sensor for Arduino (D38)","description":"\u003ch1\u003eAudio Sound Sensor Module for Arduino\u003c\/h1\u003e\u003ch2\u003eEasy Sound Detection for Arduino Projects\u003c\/h2\u003e\u003cp\u003eUpgrade your Arduino or DIY electronics projects with this versatile \u003cstrong\u003eaudio sound sensor for Arduino\u003c\/strong\u003e. 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Set the sensitivity with a 100K trimmer potentiometer to trigger on your desired sound level—ideal for custom \u003cstrong\u003eclap on\/off projects\u003c\/strong\u003e, noise alarms, and more.\u003c\/p\u003e\u003ch2\u003eHow the Audio Sensor Works\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThe LM393 comparator watches the microphone signal and outputs HIGH when it exceeds the reference voltage.\u003c\/li\u003e\n\u003cli\u003eSensitivity is easy to adjust with the onboard trimmer.\u003c\/li\u003e\n\u003cli\u003eSimple 3-wire connection: GND, VCC (5VDC), and digital output pin. 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Build smarter and more interactive devices with your \u003cstrong\u003eArduino sound sensor module\u003c\/strong\u003e. Great for home automation, alarms, and fun Arduino sound sensor projects. 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This digital temperature sensor gives you highly accurate readings, is simple to connect, and is compatible with a wide range of Arduino boards.\u003c\/p\u003e\u003ch2\u003eKey Features of the DS18B20 Temperature Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMeasurement Range: -55°C to +125°C, great for indoor or outdoor use\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.5°C from -10°C to +85°C\u003c\/li\u003e\n\u003cli\u003eCommunication: 1-wire digital interface for simple wiring\u003c\/li\u003e\n\u003cli\u003eUnique 64-bit serial number ensures each sensor is individually addressable\u003c\/li\u003e\n\u003cli\u003eCompatible with Arduino and Arduino libraries\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose a 1-Wire Temperature Sensor?\u003c\/h2\u003e\u003cp\u003eThis sensor uses Maxim’s unique 1-wire bus, allowing for bidirectional communication and even powering the device through a single wire. 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