How to use Force Sensitive Resistor - Pressure sensor
Force Sensitive Resistor - Pressure sensor
Introduction
In this tutorial you will learn how to use an FSR - Force Sensitive Resistor with Arduino to fade an LED. This sensor is a variable resistor just like a photocell or flex sensor. The resistance changes by applying pressure on it.
What you will need - Hardware
For this tutorial you will need:
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The Circuit
The connections are pretty easy, see the image above with the breadboard circuit schematic.
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The code ::
How it works:
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/* How to use a Force sensitive resistor to fade an LED with Arduino
*/
//Constants:
const int ledPin = 3; //pin 3 has PWM funtion
const int sensorPin = A0; //pin A0 to read analog input
//Variables:
int value; //save analog value
void setup(){
pinMode(ledPin, OUTPUT); //Set pin 3 as 'output'
Serial.begin(9600); //Begin serial communication
}
void loop(){
value = analogRead(sensorPin); //Read and save analog value from potentiometer
Serial.println(value); //Print value
value = map(value, 0, 1023, 0, 255); //Map value 0-1023 to 0-255 (PWM)
analogWrite(ledPin, value); //Send PWM value to led
delay(100); //Small delay
}
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Well done!
You have successfully completed one more Arduino "How to" tutorial and you learned how to use a Force Sensitive Resistor with Arduino.
I hope you liked this, let me know in the comments.
I hope you liked this, let me know in the comments.
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