在arduino上实现红外传感器

Question

有没有办法在Arduino代码中实现红外传感器作为输入？我希望传感器将数据发送到Arduino的值( IR位置的更改)，然后在软件中使用该值作为输入。

代码是一个光阻传感器的例子，它在每次黑暗时打开LED，并在光传感器检测到它的亮度时将其关闭。

int sensor1Value = 0;
void setup()
{
  // declare the ledPins as an OUTPUT:
  pinMode(13, OUTPUT);
  
}

void loop() {
  // read the value from the sensor:
  sensor1Value = analogRead(A0);
{
  if(sensor1Value <200)     // check the value of sensor 
 {                          //if the value is less than 200 then turn the leds on
 digitalWrite(13, HIGH);
  delay(500);
 }
 else                      // if the value is greater than or equal to 200 then turn leds off
 {
  digitalWrite(13, LOW);
  delay(500);
}
}

Answer 1

最简单的方法是使用IR phototransistor

在每个digitalWrite()之后不需要延迟，只需将其添加到loop()函数的末尾即可。

void loop() {
  // read the value from the sensor:
 sensor1Value = analogRead(A0);
 if(sensor1Value <200)     // check the value of sensor 
 {                          //if the value is less than 200 then turn the leds on
 digitalWrite(13, HIGH);
  
 }
 else                      // if the value is greater than or equal to 200 then turn leds off
 {
  digitalWrite(13, LOW);
 
 }
 delay(500);
}