Karol:

Uzitocne pre robota

url: http://i636.photobucket.com/albums/uu89/pokaralake/Arduino_infrared_reflectance_sen-3.gif

url: http://i636.photobucket.com/albums/uu89/pokaralake/Arduino_infrared_reflectance_sen-2.jpg

Program:

int ledPin = 13; // choose pin for the LED
int inputPin = 2; // choose input pin (for Infrared sensor)
int val = 0; // variable for reading the pin status

void setup() {
pinMode(ledPin, OUTPUT); // declare LED as output
pinMode(inputPin, INPUT); // declare Infrared sensor as input
}

void loop(){
val = digitalRead(inputPin); // read input value
if (val == HIGH) { // check if the input is HIGH
digitalWrite(ledPin, LOW); // turn LED OFF
} else {
digitalWrite(ledPin, HIGH); // turn LED ON
}
}