High Low problem
September 10, 2010
We built the easy robot as per the instructions at the Home page. Programmed it etc, worked fine, very happy. We used the example program where he rolls about using his IR sensor to avoid obstacles. Then we got a little creative and added an LED. Only problem is the command HIGH turns the LED off and the command LOW turns the LED on. The LED is plugged into the same set of pins as the servo is plugged. Servo is on pins 0, LED is on pins 2. High 4, High 5 operate the motors normally. We're a little confused as we imagine the pins to always be powered down until you command HIGH which puts a current through the pins. Have I got this wrong? Many thanks.