Datasheet
Gemma M0
A1 is located near the top of the board of the board to
the left side of the USB Micro port. Ground is on the
other side of the USB port from A1. 3V is located to the
left side of the battery connector on the bottom of the
board.
Your board has 3 analog pins. For the full list, see the
pinout page (https://adafru.it/AMa) on the main guide.
Feather M0 Express and Feather M4 Express
A1 is located along the edge opposite the battery
connector. There are multiple ground pins. 3V is located
along the same edge as A1, and is next to the reset
button.
Your board has 6 analog pins you can use. For the full
list, see the pinouts page (https://adafru.it/AMc) on the
main guide.
© Adafruit Industries
https://learn.adafruit.com/adafruit-feather-m0-express-designed-for-circuit-python-
circuitpython
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