Datasheet

I'm trying to upload to my Feather M0, and I get this error "Connecting to programmer:

.avrdude: butterfly_recv(): programmer is not responding"

You probably don't have Feather M0 selected in the boards drop-down. Make sure you

selected Feather M0.

I'm trying to upload to my Feather and i get this error "avrdude: ser_recv(): programmer is

not responding"

You probably don't have Feather M0 / Feather 32u4 selected in the boards drop-down.

Make sure you selected Feather M0 (or Feather 32u4).

I attached some wings to my Feather and now I can't read the battery voltage!

Make sure your Wing doesn't use pin #9 which is the analog sense for the lipo battery!