Contents - Raspberry PI Community Projects

GELI 'jelly'(GPIO Experimenter and Lab Interface Board)
Raspberry Geli Board (http://www.fulburncams.gb.net/) Extends the GPIO and provides
I2C, D2A/A2D, DC Motor(L298), RS232, Realtime Clock (DS1307), 1-wire and
prototyping area on 150 * 100mmm PCB.
GPIO isolated expansion/RTC
UT Electronics (http://www.utelectronics.com) is developing a expansion board
containing a fully isolated 16-I/O I2C GPIO expander and RTC, with extensive options
for further expansion. C and Python libraries will be available at launch. The board will
probably be sold as a kit, with SMT components already in place.
Update: According to their website, the realities of life prevent them from bringing the
product to market. They are hoping someone will pick up the ball. They have released the
PCB layout and all documentation for free on their website.
aLaMode
“À la mode” (http://wyolum.com/?p=824) is an Arduino clone specifically designed to
interface with the Raspberry Pi. You can of course connect a standard Arduino to a Pi
USB port using a cord, but when you want a turnkey solution, how about an Arduino
compatible “plate” (shield) that fits right on top of the Raspberry Pi with direct access to
GPIO port? The Linux side handles all of the displays, human interfaces, and number
crunching. The low power Arduino compatible “à la mode” board handles sensors,
servos/motors, and provides a highly accurate real time clock.
PiBorg
PiBorg (http://www.piborg.org) is a Robotics add on board which adds the ability to
control motors - from small to large (including DC motors, Stepper motors, BLDC
motors and Solenoids) from your Raspberry Pi. It supports feedback via Encoders and
Potentiometers, allowing closed loop (servo) control of motors to set positions, velocities
and accelerations and it is capable of monitoring drive current and voltages. The loop is
PID based and as PiBorg is an Open Source project (http://sourceforge.net/p/piborg/wiki/
Home/) , you may change the code as you please. It has the ability to drive 10A motors
and more, so you'll never be left underpowered with this board!
Piface
Piface (http://piface.openlx.org.uk) is simpler than the RPi Gertboard (it's aimed at less
experienced users), but also intended to connect to PCs and Android to be platform
agnostic