I'm Tomu

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Description Can a hobbyist fit an ARM processor inside your USB port for less than $10 USD?
Slides http://j.mp/tomu-33c3
Website(s) http://tomu.im
Tags usb, hardware, security, arm
Person organizing Mithro
Contact: mithro@mithis.com
Language en - English
en - English
Duration 5
Desired session Day 3
Desired timeframe middle


The Tomu project (http://tomu.im) has created a powerful device which fits inside your USB port and a hobbyist can build extremely cheaply in individual quantities. This enables people to create their own 2-factor authentication, indicator lights or key storage without having to trust big manufacturers or forking over large amounts of cash.

The Tomu board can be created with a BOM of $10 USD in individual quantities (dropping to $4 USD in 1k units) and includes;

  • 2 x Color LEDs
  • 2 x Touch buttons
  • 24MHz Cortex-M ARM Processor with 8k RAM and 64k flash
  • USB 2.0 interface

All code and materials and hardware covered in this talk are released under OSI approved licenses and the board has been designed in KiCad enabling everyone to create custom versions.