光敏传感器

光敏传感器实质是一个光敏电阻,其阻止会随光线强度的变化而发生变化,并且当光照强烈时,阻值变小;光照减弱时,阻值增大;完全遮挡光线时,阻值最大。

Arduino引脚

模块引脚

A2

S

5V

Vcc

GND

GND

int sensorPin = 2;

int value = 0;

void setup() {

  // put your setup code here, to run once:

  Serial.begin(9600);

}

 

void loop() {

  // put your main code here, to run repeatedly:

  value = analogRead(sensorPin);

  Serial.println(value, DEC);

  delay(50);

}

  

原文地址:https://www.cnblogs.com/Liqiongyu/p/4985844.html