In order to use a Feather M0 for debugging some connections need to be made to the Segger J-Link JTAG Debugger. The following parts can be used to create a JTAG FeatherWing:

You can also use our SWD breakout board:

SWD (2x5 1.27mm) Cable Breakout Board

This adapter board is designed to make it easier to use ARM dev boards that use slimmer 2x5 (0.05"/1.27mm pitch) SWD cables for programming.  It's helpful for using...
This guide was first published on Jan 30, 2017. It was last updated on Jan 30, 2017.
This page (Parts) was last updated on Oct 22, 2020.