QT Py - SAMD21

Vendor: Adafruit
Features: USB-C
Source on GitHub: samd/ADAFRUIT_QTPY_SAMD21
More info: Website

Installation instructions

For deploying the MicroPython firmware to the SAMD module, follow the procedure:

  • Push the reset button twice or call machine.bootloader(). A drive icon should appear representing a virtual drive.

  • Copy the .uf2 file with the required firmware to that drive.

As soon as the drive disappears, the firmware is loaded and started.

Firmware

Releases

v1.25.0 (2025-04-15) .uf2 / [Release notes] (latest)

Preview builds

v1.26.0-preview.277.g4bd99260d (2025-06-26) .uf2
v1.26.0-preview.266.g6fee099ca (2025-06-25) .uf2
v1.26.0-preview.265.ge57aa7e70 (2025-06-23) .uf2
v1.26.0-preview.257.gc16a4db15 (2025-06-19) .uf2
(These are automatic builds of the development branch for the next release)

Firmware (Support for an external Flash chip)

Releases

v1.25.0 (2025-04-15) .uf2 / [Release notes] (latest)

Preview builds

v1.26.0-preview.277.g4bd99260d (2025-06-26) .uf2
v1.26.0-preview.266.g6fee099ca (2025-06-25) .uf2
v1.26.0-preview.265.ge57aa7e70 (2025-06-23) .uf2
v1.26.0-preview.257.gc16a4db15 (2025-06-19) .uf2
(These are automatic builds of the development branch for the next release)