FSR402 Force sensing resistor

FSR402 Pressure Sensor for Arduino View larger


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Force Sensing Resistors (FSR) are a polymer thick film (PTF) device which exhibits a decrease in resistance with an increase in the force applied to the active surface. Its force sensitivity is optimized for use in human touch control of electronic devices. FSRs are not a load cell or strain gauge, though they have similar properties. FSRs are not suitable for precision measurements.pressure sensor.


Length: approx. 60mm
Width: approx. 19mm
Sensing area: 12.7mm
Output signal: Passive variable resistance
Force sensing range: 0g~10kg


  • FSR402 film force sensor.
  • FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance.
  • Can sense applied force on sensing area in the range of 0g-10kg.
  • Two pins extend from the bottom of the sensor to mount the FSR.
  • Small in size.
  • Light in weight.
  • This sensor is simple to set up and great for sensing pressure, but you may not want to use it as a scale for it is not incredibly accurate.

Wiring diagram+Code


int presiunepin = A0;
int forta;
int LEDpin = 12;
void setup() {
pinMode(LEDpin, OUTPUT);
void loop() {
  forta = analogRead(presiunepin);
if(forta > 500) {
  digitalWrite(LEDpin, HIGH);
else {
  digitalWrite(LEDpin, LOW);


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FSR402 Force sensing resistor

FSR402 Force sensing resistor

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