Debugging embedded code is so much easier with a HW debugging probe like the J-Link or Atmel ICE. But connecting these to Feather format development boards that don’t have a debugging header means adapting the board by soldering leads to you Feather.

Here at LooUQ we use Feathers from Adafruit and SparkFun all the time, in fact most of LooUQ's embedded development for the SAMD processors is done on one of these boards. This adapter was designed to make embedded code debugging for LooUQ's applications easier. Instead of using a collection of modified Feather boards in our lab; this adapter allows us to just grab any one of them, add a SWD UXplor, put it in the project, and start debugging.

The UXplor SWD-F strikes a balance between being as small as possible and making the 10-pin debugging header accessible. The UXplor SWD-F extends only 7mm beyond the end of your Feather development board from the end opposite the micro-USB connector. For an Adafruit Feather your footprint is 58mm long; the total length of the Thing Plus with the UXplor Feather SWD is 66mm (the Thing Plus extends on the USB end beyond Adafruit units + the 7mm for the UXplor adapter).

The UXplor SWD-F uses spring-loaded POGO pins to connect up SWIO and SWCLK to the flat surface pads exposed on the bottom of the Feathers. The UXplor is totally a passive device; there are no active components, just connectors.

Compatible with... - Adafruit Feather M4 Express - SparkFun Thing Plus - SAMD51