SAMD21 Xplained Pro

Vendor: Microchip
Features: Micro USB, SPI Flash
Source on GitHub: SAMD21_XPLAINED_PRO
More info: Website

Installation instructions

Firmware

Nightly builds

v1.17-219-ga7fa18c20 (2021-12-03) .uf2
v1.17-217-gde7e3cd79 (2021-12-01) .uf2
v1.17-212-g23a150789 (2021-11-30) .uf2
v1.17-207-g97a7cc243 (2021-11-29) .uf2