Contents - Raspberry PI Community Projects

original BBC Micros digital User Port and Analogue Port but uses more modern
components such as the MCP23S17 16-ch GPIO and MCP3204 4-ch 12-bit ADC.
rpi_serial
BitWizard has a Raspberrypi serial breakout board (http://www.bitwizard.nl/wiki/
index.php/Raspberry_pi_expansion_system_page#expansion_boards) . It breaks out four
serial buses from the GPIO port.
BitWizard then has a series SPI (or I2C) expansion boards that can be daisy-chained off
the SPI (or I2C) buses of the expansion board. A virtually unlimited number of expansion
boards can be connected. Expansion boards are available that drive a simple 16x2 text
LCD, more general purpose IOs, servos, temperature sensors, relays, optocouplers etc.
RPi RS232 Breakout Board
RPi RS232 Breakout Board (http://zuzebox.wordpress.com/2012/02/07/rs232-breakoutboard-v0-20-for-raspberry-pi/)
is a simple RS232 breakout board for the Raspberry Pi
Slice of Pi
Slice of Pi (http://shop.ciseco.co.uk/slice-of-pi/) Ciseco have produced a 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. Comes as a kit of
parts that needs to be soldered. Construction is very easy and suitable for children with
basic soldering skills.
XBee ZB SMT Backpack
The Raspberry Pi XBee ZB SMT Backpack (http://www.bootc.net/archives/2012/06/20/
raspberry-pi-xbee-smt-backpack/) by bootc is a carrier board for Digi XBee ZB SMT
(http://www.digi.com/products/wireless-wired-embedded-solutions/zigbee-rf-modules/
zigbee-mesh-module/xbee-smt) modules. These are different to the normal XBee
modules because they are surface mount and additionally can interface to a host using
SPI as well as serial. The backpack also features 3 LEDs for status signals as well as two
FTDI headers (one for the RPi and one for the XBee), as well as being able to host a
'normal' XBee module (though of course you can't use SPI with those).
RPi Servo board
The Raspberry Pi Servo board (http://electronics.chroma.se/rpisb.php) by adent is a small
expansion board for connecting up to eight RC servos and/or an ESC (Electronic Speed
Controller) to the RPi. It will have a pass through for the GPIO port and it uses the serial