Forum 2005-2010 (read only)
Topic: test mega
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Jun 21, 2010, 06:42 am
How can I test a mega before I try to use it? It's not new and if I have to troubleshoot, I'd be miles ahead to know it was my work and not a bad board. Thanks.
Measurement changes behavior
Re: test mega
Jun 21, 2010, 07:15 am
How can I test a mega before I try to use it?
Well I would think the if you can upload a sketch first that would tell you that the board is pretty much functional. That would leave only testing for bad I/O pins.
Write a sketch that blinks a output at one second to all pins and then attach a simple led>1k ohm resistor> cathode end of led to ground, anode end of LED moved to each pin, one at a time, to see if it blinks then move on to your next pin. The setup function would have to set-up all the pins to output mode and the loop function would contain the blink code to generate a pulsing output to every output pin.