I have two MPGuino units for sale.
#1 - preassembled unit I bought on this forum about 3 years ago. 20MHz crystal, reflashed with the latest software. Middle button needs to be pressed at an angle but otherwise good condition. Comes with deluxe cardboard case, power cable, and in-line resistors for the VSS and ground. Uses standard PC molex connectors.
$50 + shipping, willing to ship internationally.
#2 - Homebuilt unit based on Arduino Uno, 3 color backlight screen. 16MHz crystal, flashed with latest software. Works (has all necessary resistors and whatnot), but I don't trust my soldering job, so realistically you may want to pull it apart and resolder it if you don't want to lose your tank average when going over speed bumps. Switch on the side was installed to switch between red / green / blue backlight. May be powered by 12v or 5v USB. About twice the size of the prebuilt unit.
$30 + shipping - less than the total cost of parts - and I'll include a USB cable.
