“LEGO-红外感应器”的版本间的差异

int sensorPin = A3;   // select the input pin for the sound sensor
int ledPin = 5;       // select the pin for the LED
 
void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}
 
void loop() {
  int sensorValue = analogRead(sensorPin);  // read the value from the sensor
  Serial.println(sensorValue);
  // if the sound sensor’s value is greater than 200, the led will be on for 2 seconds.
  // Otherwise, the led will be turned off
  if (sensorValue > 200) {
    digitalWrite(ledPin, HIGH); // turn the ledPin on
    delay(2000);
  } else {
    digitalWrite(ledPin, LOW);  // turn the ledPin off
  }
}