Transistor & component tester. Based on designs from Markus Frejek, Karl-Heinz Kübbeler & Markus Reschke. http://www.mikrocontroller.net/articles/AVR_Transistortester

This version uses SMD parts and is designed to be directly soldered on the back of a 16 pin HD44780 LCD using a 0.1" pin header. Minor modification to the Reference (I used what I had to hand). Schematic is available at http://www.frenchie.id.au/electronics/ttester/schematic.pdf