Adafruit Tomu

Only 13mm long, Tomu truly embodies the essence of micro in microprocessor. This open-source development board features the Silabs Gecko EFM32HG309 processor on a compact board that fits directly into a USB A port. USB C users will require an adapter.

Equipped with two minuscule LEDs and two capacitive-touch pads, Tomu also includes a native USB bootloader. Initially crafted for 2-factor authentication, it excels in tiny USB projects, ARM/Gecko testing, or integrating a basic input to your computer.

Fully open-source, it invites exploration and innovation. The GitHub repository is abundant with examples, programming instructions, and projects to explore. Comes with one fully assembled Tomu, ready for your next creative endeavor.