Microcontroller Modules & Accessories

Shop microcontroller modules and accessories 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.

These 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.

Sensors for Microcontroller and Embedded Projects

Sensor 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.

Available 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.

Motion, Orientation and Position Sensors

Motion 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.

Our selection includes modules based on devices such as the MPU-6050 accelerometer and gyroscope, MMA7361 accelerometer and QMC5883L magnetometer.

Relay Modules and Electronic Switching

Relay 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.

Vetco 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.

Motor Drivers and MOSFET Control Modules

Microcontroller 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.

Our selection includes hardware such as L298N motor driver modules for controlling DC motors and stepper motors, as well as MOSFET switching modules for electronic load control.

Distance, Light and Environmental Sensing

Microcontroller 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.

These types of sensors are useful for projects such as obstacle detection, automatic lighting, alarms, environmental monitoring and interactive devices.

Communication, RFID and Interface Modules

Communication 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.

USB-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.

Modules for ESP32 Development

Many modules commonly associated with Arduino projects can also be used with ESP32 development boards. Sensors and accessories that communicate through interfaces such as I2C, SPI, UART or digital GPIO can often be integrated into ESP32 projects when their voltage levels and electrical requirements are compatible.

ESP32 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.

Modules for Arduino and Raspberry Pi

Arduino 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.

When 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.

Microcontroller Interfaces: I2C, SPI, UART and GPIO

Different microcontroller modules communicate using different electrical interfaces. Common interfaces include:

• I2C for sensors, displays and other addressable peripherals
• SPI for higher-speed sensors, displays and interface devices
• UART / TTL serial for serial modules, programming and device communication
• Digital GPIO for switches, relays, simple sensors and control signals
• Analog inputs for sensors that provide a variable voltage output

Understanding the interface used by a module can help determine whether it will connect directly to your ESP32, Arduino, Raspberry Pi or other development platform.

Modules and Accessories for Robotics, IoT and Automation

Microcontroller modules and accessories can be used in a wide range of electronics projects, including:

• Robotics and motor control
• IoT sensors and connected devices
• Home and industrial automation
• Environmental monitoring
• Distance and proximity sensing
• Motion and orientation detection
• RFID and access control
• Lighting and load switching
• Data acquisition and instrumentation
• Educational electronics and prototyping

Shop Microcontroller Modules & Accessories at Vetco Electronics

Browse Vetco Electronics for microcontroller modules, sensors, relay boards, motor drivers, interface modules and embedded electronics accessories for ESP32, Arduino, Raspberry Pi and other development platforms. Our selection includes practical components for prototyping, education, engineering, automation, repair and custom electronics projects.