Alex Albino of femto.io recently launched a crowdfunding campaign on Indiegogo for the successor to the 8-bit AVR powered Femtoduino:
FemtoUSB
A tiny, powerful Arduino compatible board
Features:
- Atmel ATSAMD21E18A
- 256KB of flash
- 32KB of SRAM
- runs at 48MHz
- RGB LED
- push button
- USB Host capabilities
- interactive examples (Unity3D, Node.js & more)
The FemtoUSB hardware design files:
The source code and configuration files of the Arduino Core for the FemtoUSB’s Atmel SAMD21 processor:
femtoio/ArduinoCore-atsamd21e18a