¶ TCRT5000
#define DIGITAL_PIN 2
boolean sensorOut = HIGH;
void setup() {
Serial.begin(9600);
pinMode(DIGITAL_PIN, INPUT);
}
void loop() {
sensorOut = digitalRead(DIGITAL_PIN);
if (sensorOut == LOW) {
Serial.println("Obstacle detected!");
} else {
Serial.println("No Obstacle");
}
delay(1000);
}