User Manual

Gemma M0

D2 is an alligator-clip-friendly pad labeled both "D2" and

"A1", shown connected to the blue wire, and is next to

the USB micro port. D13 is located next to the "GND"

label on the board, above the "On/Off" switch.

Use alligator clips to connect your switch to your

Gemma M0!

Feather M0 Express and Feather M4 Express

D5 is labeled "5" and connected to the blue wire on the

board. D13 is labeled "#13" and is located next to the

USB micro port.

To use D5, comment out the current pin setup line, and

uncomment the line labeled for Feather M0 Express.

See the details above!

ItsyBitsy M0 Express and ItsyBitsy M4 Express

D2 is labeled "2", located between the "MISO" and "EN"

labels, and is connected to the blue wire on the board.

D13 is located next to the reset button between the "3"

and "4" labels on the board.