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c_cpp
2 years ago
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int irDetect(int irLedPin, int irReceiverPin) { 

    // set LED to 64 which is 25% brightness on a scale of 0-255  
    analogWrite(irLedPin, 64); 

    // However much time it needs for the LED to light 
    // up and the IR receiver to receive  
    delay(8); 

    // Read the state of the IR sensor
    int ir = digitalRead(irReceiverPin);

    // turn LED back off
    analogWrite(IR_LED_PIN, 0); 

    // Down time before recheck
    delay(1); 

    return ir; // Return 1 no detect, 0 detect

}