SynthModules

I bought a Kurzweil PC-2 ribbon which is the same ribbon that is used 
with the Expressionmate. It's just the passive ribbon portion and I 
bought it from Sweetwater for $50. I've interfaced it to the PSIM and 
written an controller program.

I drive the ribbon 'potentiometers' from a OUT4 at 5.6 volts and
put a diode drop to ground in the ribbon connector. This floats the 
ribbon from 0.6 to 5.6 volts. If I read <0.6 volts from a ribbon 
section then there is no contact. That way I can detect ribbon contact 
to generate a gate and trigger signal. This ribbon is in three 
sections and I piece them back together into a continuous ribbon with 
0 to 10 volt output. On first contact I output a 15 mS trigger and 
send an "ouch" to the SpeakJet. On no contact with the ribbon I output 
5 volts which is fine tunable via IN1.

I put a schematic of the ribbon cable pinout on my web site
http://modularsynthesis.com/modules/DJB-011/djb011.htm

I put the program on my web site as well.

Dave