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March 2010 Leather Desktop Chorder

Sunday afternoon project. This right hand chorder uses the atmega168 chip. It is built on a Radio Shack 276-150 printed circuit board which greatly reduces the need to run wires around. It uses cherry keyswithches with replacement lighter weight springs. It was used to create and edit this wiki page.


as tested prior to final glue up (Don't glue the case closed before you know it all works!)
Underside of the plastic board with keyswithches all wired
circuit - board has been cut away to fit in to the case. Since switches are close, no pullup resistors are used in this build. Keyswitches are wired to an eight pin sip socket
underside of circuit - as you can see, only a few jumpers are needed
foam keeps the keyswitch wire from contacting the circuit board
circuit in place
a little more foam to keep circuit from moving around in the case
exterior showing layers of leather
exterior showing layers of learther
leather trimmed, contact cement drying before attaching bottom. (I always put a date on it somewhere.)
thin exterior layer (white fake leather) contact cement drying
cleaned up
spiffchorder/2010-03-leather.1269205858.txt.gz · Last modified: 2010/03/21 17:10 by priestdo
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