I have a quite big problem which makes me crazy. I have a mega board. when upload a sketch in it,
led flashes (i think) two times, then sketch starts running and pin 13 led starts blinking. this is
normal as i know from my uno.
The strange thing is, when i unplug or reset it, again power led is on, first pin 13 led flashes two
times, but no flash after. To make it work, i need to re-upload the code in it. I have a glcd display
connected to it which displays angle values from mpu sensor. I see nothing on screen when pin 13 led
is not flashing.
What could the problem be? I am completely lost.
Any help would be appreciated.
Many thanks in advance.