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Tomu Open Source Development Board Easily Fits In Your USB Port
Developers, makers and electronics enthusiasts searching for a miniature open source development board may be interested to know that the Tomu is now available from the online Adafruit store.
Tomu is based on Silicon Labs Happy Gecko EFM32HG309 Arm Cortex-M0+ microcontroller that runs at 25 MHz. It sports 8 kb of RAM and 60 kb of flash onboard. In spite of the small size, it supports two LEDs and two capacitance touch buttons.
Once you plug in this little computer, it can simulate a hard drive or mouse, send MIDI data, and even blink quickly. Tomu is a completely open source project that can act as a Universal Second Factor security token. The hardware is fully documented, and the bootloader and other code can be accessed on GitHub.
- CPU: Silicon Labs Happy Gecko EFM32HG309
- Speed: 25 MHz ARM Cortex-M0+
- RAM: 8 KB
- Storage: 64 KB Flash
- Connectivity: USB 2.0 FS
- Buttons: 2
- LEDs: 2 (red + green)
- Components: Literally 12 parts + PCB – comes fully assembled
- GitHub repository
- Product Dimensions: 13.0mm x 10.0mm x 1.5mm / 0.5″ x 0.4″ x 0.1″