The Netduino is an open source electronics platform using the .NET Micro Framework. It features a 32-bit microcontroller and a rich development environment. The Netduino combines 20 GPIOs with SPI, I2C, 2 UARTs, 4 PWMs, and 6 ADC channels.

Check out the getting started guide for more information on how to get started with the Netduino. Don't forget the USB  micoB Cable.

Features:

• Atmel 32-bit microcontroller
• 48Mhz, ARM7
• 14 Digital I/O Pins
• 6 Analog Inputs
• Arduino Shield Compatible

Documents:

• AT91SAM7X512 (summary)
• AT91SAM7X512 (datasheet)
• Schematic
• Board Layout
• Product Page