FSR402力敏電阻器

模塊簡介

FSR 402力敏電阻器，它可以便捷地檢測外界壓力。它實(shí)質(zhì)上是一個(gè)可變電阻， 和光電傳感器或彎曲傳感器的原理類似，通過在其上施加壓力的變化來改變阻值。

所需材料

所需材料

• Arduino Uno 開發(fā)板 *1
• 面包板 *1
• FSR 402力敏電阻器 *1
• LED *1
• 10k歐和220歐電阻 *1

接線

接線示意圖

FSR402正面(有條紋的)朝上時(shí)，左邊的引腳為負(fù)極，右邊為正極

• FSR402
  + ---->5v
  - ---->10kOhm ----->GND
  - ---->A0
• LED
  + ------->220Ohm ----->D3(PWM)
  - ------->GND

示例代碼

/* How to use a Force sensitive resistor to fade an LED with Arduino
   More info: http://www.ardumotive.com/how-to-use-a-force-sensitive-resistor-en.html 
   Dev: Michalis Vasilakis // Date: 22/9/2015 // www.ardumotive.com  */
   

//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
  
}

 

參考文獻(xiàn)

http://www.instructables.com/id/How-to-use-a-Force-Sensitive-Resistor-Arduino-Tuto/?ALLSTEPS