Force Sensitive Resistor Thin Film Pressure Sensor

Flexible Force Sensitive Resistor for Electronics Projects

This force sensitive resistor provides a simple way to detect applied force or pressure in Arduino, Raspberry Pi, robotics, and DIY electronics projects. Its flexible, thin film design fits into compact spaces where a bulky mechanical sensor may not be practical.

With a sensing range of 0 to 10 kg (0 to 22 lb), the sensor can be used for touch detection, force monitoring, interactive controls, and basic weight detection. As force is applied to the sensing area, its electrical resistance changes. A microcontroller can measure this change and use it to trigger an action, estimate force, or monitor pressure.

Thin Film Pressure Sensor with a Low Profile

The thin film pressure sensor is flexible, compact, and easy to add to prototypes or finished projects. Its low profile makes it useful for installation beneath buttons, pads, panels, grips, and other surfaces where available space is limited.

Unlike a basic switch that only reports on or off states, this resistive pressure sensor produces a changing electrical response based on applied force. This allows a project to recognize light touches, stronger presses, and changing pressure levels.

Arduino Force Sensor and Raspberry Pi Pressure Sensor

This sensor can be connected to an Arduino or another microcontroller through a simple resistor based measurement circuit, such as a voltage divider. The resulting voltage can be read through an analog input and converted into pressure levels or control actions in software.

When used as a Raspberry Pi pressure sensor, an external analog to digital converter is required because standard Raspberry Pi boards do not include built in analog inputs. The sensor is also suitable for many other development boards and embedded controllers that can measure variable resistance or analog voltage.

Force and Pressure Detection Applications

The 0 to 10 kg force sensor is a versatile choice for hobbyists, students, makers, and electronics experimenters. It can help add pressure responsive input to a wide variety of projects without complicated mechanical parts.

Common applications include:

• Touch sensing for buttons, pads, and control surfaces
• Force detection in robotics and mechanical prototypes
• Pressure monitoring beneath grips, pads, or panels
• Interactive controls that respond to how firmly they are pressed
• Basic weight detection and load sensing experiments
• Arduino and Raspberry Pi projects requiring pressure based input

Easy to Interface Resistive Force Sensor

The DF9-40 is a passive resistive force sensor, making it easy to integrate with common electronics components. No complex communication protocol is needed. Applied force changes the sensor resistance, and that change can be measured by a suitable circuit and microcontroller.

For best results, the sensor should be calibrated within the completed project. Mechanical placement, contact surface, pressure distribution, and circuit design can affect readings. It is well suited to relative force sensing and pressure detection, but applications requiring precision weighing may require a calibrated load cell and dedicated amplifier.

Force Sensitive Resistor Specifications

Vetco Electronics

Vetco Electronics offers practical sensors and electronic components for makers, students, technicians, and everyday DIY projects. This flexible pressure sensor is a convenient option for adding force responsive input to Arduino, Raspberry Pi, robotics, and custom electronics designs.