Home > Hardware, Linux > Olimex to Provide $5 Raspberry Pi GPIO to Breadboard & UEXT Adapter

Olimex to Provide $5 Raspberry Pi GPIO to Breadboard & UEXT Adapter

November 22nd, 2012 Leave a comment Go to comments

At $25 and $35 is Raspberry Pi is currently the cheapest board you can buy to develop for ARM Linux, however the expansion boards such as the Gertboard ($60) and the recent PiFace Digital ($32) are not as cheap considering the few components they have on board. This is why Olimex has designed a Raspberry Pi GPIO to breadboard & UEXT adapter (RPI-UEXT) which should be available in 2 weeks for 3.95 Euros (~$5).  You then just need to add a breadboard for 2.95 Euros (~$3.8 ), which means for just $9 you can start prototyping easily with the Raspberry Pi.

Olimex RPI-UEXT PCB Layout

The RPI-UEXT adapter (PCB Layout pictures on the right) also features – as the name implies – a UEXT (Universal EXTension) connector which consists of 10 pins which provide power (+3.3V/GND), and access to asynchronous serial I/O, I2C & SPI signals.

This connector allows to connect other UEXT modules manufactured by Olimex such as the MOD-IO2 board (12.95 Euros) which adds 2 relays and 7 GPIOs. There are currently over 20 UEXT modules whose prices range between 4.95 to 79.95 Euros (4.3″ LCD Module) including:

  • 2x MOD-IO boards with relays, GPIO and  analog inputs.
  • MOD-RTC module that sells for just 4.95 Euros, so that you can easily add an RTC clock for about 9 Euros ($11.50) to the Raspberry Pi.
  • 4 different LCD modules starting with a 1 row 9 character LCD to a 4.3″ LCD display.
  • One RFID module
  • 5 “connectivity” modules that provides Bluetooth, Zigbee, WiFi or Quad band GSM/GPRS
  • One GPS module
  • A Wii Nunchuck joystick with 2 buttons, a 3-axis accelerometer and XY joystick.
  • 3 sensor modules – Accelerometer, magnetometer and temperature probe.
  • One RS485 convertor module to control motor and/or other instruments.
  • 2 “health/medical” modules for measure heartbeat and blood oxygen levels.

Olimex MOD-IO Module

Other UEXT modules are also being developed such as an RGB LED controller, a 110/220VAC dimmer controller and an energy metering module. You can find more information about individual UEXT modules, including pictures, on Olimex  post about RPI-UEXT adapter.

Digg This
Reddit This
Stumble Now!
Buzz This
Vote on DZone
Share on Facebook
Bookmark this on Delicious
Kick It on DotNetKicks.com
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter

  1. mac me
    November 25th, 2012 at 07:27 | #1

    Well done Olimex ! .. thats what we want .. good clever open design leading to cheap simple and useful products

  2. November 26th, 2012 at 09:50 | #2

    @mac me
    I really think what they;’ve done is awesome, not only because of the price of the adapter, but also (and mostly) because of all the features that can easily be added to the R-Pi thanks to the existing modules. I’m not sure the software is ready for all modules however. TBC.

  1. December 22nd, 2012 at 08:56 | #1