An ARM board which fits inside your USB connector

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Hi, I’m Tomu. I’m a programmable computer. I’m so small that I can fit entirely inside a computer’s USB port.

I stick out just a little bit, enough to allow you to press one of the two buttons on my side. I also have two LED lights, to let you know what I’m up to.

I have:

  • 25 MHz ARM Cortex M0+ CPU
  • Two LEDs
  • Two capacitive-touch buttons
  • 8 kilobytes of RAM
  • 64 kilobytes of flash
  • Full and Low Speed USB

See me blink:

Learn my story:

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