Sunday, December 7, 2008

The LCD interface circuit

Well last month Greg asked me to work on interfacing some LCDs for a project. That project got more or less shelved but this weekend I sat down to get some work done on it. After scouring the pins with a multimeter and much datasheet hunting, I built an interface circuit on a breadboard and whipped up some software to control it. After much debugging, using the labs logic analyzer, and Mountain Dew I got it working with "Hello World!" and now I intend to make a PCB to hold a basic interface board that can communicate of serial or USB to drive the display. Attached is Rev. 0 of the schematic! It's not done, it may not even be 100% accurate yet.

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