Gert van Loo, who did most of the heavy hardware lifting on the alpha boards we sent out to developers a few months back, is a familiar name to our forum members. He’s a friend of ours who works at Broadcom with Eben, and in his spare time (the spare time that he hasn’t been dedicating to the Raspberry Pi itself) he’s been working on an add-on GPIO expansion board. Use it to flash LEDs on and off, drive motors, run sensors and all that other fun stuff.
Datasheet 351 Slice of Pi
Download the full datasheet as a pdf
These accesories are produced and distributed by independent vendors, and self-certified
for use with the Raspberry Pi. These products are believed to be compatible with the
Raspberry Pi but are not "officially" endorsed, certified or approved by the Raspberry Pi
Foundation unless explicitly stated on the www.raspberrypi.org website.
Convienient small break out board for the Raspberry PI. XBee style connector for XRF / XBee / RN-XV / XBT / RF-BEE etc.
Has the SPI and I2C pins on one standard 8 way header and the Raspberry PI's 8 general purpose I/O pins on another for easy access.