DIYables Force Sensor FSR402 for Arduino, ESP32, ESP8266, Raspberry Pi

Quick Overview

The DIYables FSR402 is a force-sensitive resistor (FSR) that detects force or pressure applied to its surface. The sensor's resistance decreases as the applied pressure increases, allowing you to measure force levels with a microcontroller's analog input.

The sensor has a flexible construction suitable for varied applications and includes self-adhesive tape on the back for easy mounting. It is breadboard-compatible and works with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontrollers for applications such as touch interfaces, weight measurement, and pressure-sensitive controls.

Key Features

Force-Sensitive Resistor — Resistance decreases with increased pressure
Flexible Construction — Adaptable to curved surfaces and varied applications
Self-Adhesive Backing — Easy mounting with included adhesive tape
Breadboard Compatible — Direct insertion into breadboard for prototyping
Analog Output — Provides continuous force level readings
Wide Compatibility — Works with Arduino, ESP32, ESP8266, Raspberry Pi, and any analog input microcontroller
Tutorial Support — Comprehensive tutorials and MicroPython support available
...NOTE
If you are using the ESP32, you need to configure the ADC with 11 dB attenuation to set the voltage reference range to handle up to 3.3V.
...NOTE

SPECIFICATION

Specification	Value
Product Type	Force-Sensitive Resistor (FSR)
Model	FSR402
Output Type	Analog (variable resistance)
Force Range	0.2N to 20N
Resistance Range	>10MΩ (no pressure) to ~200Ω (maximum pressure)
Sensing Area	12.7mm diameter
Construction	Flexible
Mounting	Self-adhesive backing
Breadboard Compatible	Yes
Operating Temperature	-30°C to +70°C