Xiao SAMD21 cannot sleep and wake from external interrupt

Hi there,

Yes, Sounds like a good choice, You know what you can handle. So even any help with that stuff, there are a lot of smart folks on here and willing to help all with different areas of expertise.
I think you made a good choice F328P , it’s similar in small curve to get up on. :+1: Plus there is a good bit of documentation and info on it also.
:v:

HTH
GL :slight_smile: PJ :v: