vaj4088:
Two caveats:
- The sequence "!!!" (three exclamation marks without the double quotes and without anything intervening) in the uploaded code means something special to the bootloader, so do NOT have this sequence in your program.
well that's an issue..that i was expecting, hence my question
one is supposed to be able to send any kind of data through serial interface
i guess i'll have to use Serial1 instead
thanks for the infos