Where should I connected the LEDON pin to have the IR LEDS turn on? I am using the arduino mega 2560 micro-controller. From the guide for the QTR I understood that If I keep it disconnected, it means it will be pulled high and turned on. Am I missing something here.
also can someone please tell me if my understanding of this is correct:
when I turn the ledon pin and the IR leds are turned on, the qtr-8rc will start reading outputs and when I dont need any reading for example when my robot has figured the maze and just needs to get back, I can just turn off the IR leds and the QTR-8RC would just stop reading thus using less power.