Hi! I am wondering how I can use an Infrared LED and Infrared Sensor as a tripwire. I want it to work so that when the IR signal is blocked, it would light up a green LED. Any help would be great!
Something like this
void setup() {
pinMode(7, OUTPUT); // connection to resistor and LED
pinMode(8, INPUT); // connection to IR receiver
}
void loop() {
if (digitalRead(8) == LOW) {
digitalWrite(7, HIGH);
}
else {
digitalWrite(7, LOW);
}
}
In other words it should be fairly simple. But you haven't said what IR devices you plan to use.
...R
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IR receiver light barrier
and also start by trying out all of the examples in the IRremote and/or IRLib libraries....