msp430f2013 I2C frustrations

I’ve been trying to get a ST7032i based display working with a msp430f2013 on a EZ430-F2013. Unfortunately without much success. After hours of debugging I discovered that the glass on the display was fractured… guess I’ll be ordering some more. Anyway, it did get as far as acknowledging my commands. And I found a working …

Inside a 1USD Fingerprint reader

I picked up a finger print scanner on a whim in Akihabara the other day, it was only a dollar so I figured what the hell. Looks pretty normal. I figured it would have a cheap USB controller inside. Model NEC PU800-30-S02. Hmm 2.5W… that seems kind of high… It’s got an FPGA in it!! …

CCD Notes

Some more random CCD notes, as I’ve been trying to figure out how the Ixy 60 CCd works.. The reference here which describes CCD interfacing in general has been very useful. Typically a the CCD is interfaced using an AFE (analogue front end). Another camera I have uses this Casio part: AD9923, Datasheet. This post …