First off, thanks for making such a great little board! I got up and running in no time and am enjoying it quite a bit :-). I’m excited to get it hooked up to some peripherals, hence the question :-).
I’m rather new to ARM processors (coming from AVR hobbyist land) and I was wondering what the signaling voltage on the GPIOs and I2C interface is. 3.3V? If so, is it 5V safe? or do I need to level shift it? My google-fu is failing me, so I thought I’d ask here (and say hi).
Thanks in advance,