Simple Midi Controller

[James Jackson]

>Does anyone have a schematic for a simple midi controller? I will need

>parameters for 4 octaves of kbd control, pitch bend, modulation,and

>midi channel assign. Thanks in advance. Lew  

I designed something similar to what you want. I have the scematic somewhere
for it. It is based around a PIC16C84, so you need access to a programmer (I
built mine for £2 :-) ) but that allows you to make changes to the programme
as the evice evolves! A PIC is the easiest way of doing it, as otherwise you
have to make logic to genarate the timing and the serial messages. The
timing has quite a large window, as it is wondow based!, but it would
require a LOT of logic. As you want pitch bant and modulation, it would
probably be best to design it around a PIC16C74, as this has eight A/D
converters built in that you could use for the analogue input. It also has
an onboard UART, which you could configure for MIDI communication. Whilsh
only having 33 I/O lines, you could multiplex the keyboard to allow fot the
four octaves.

Hope this helps,
James.
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James Jackson - A Minefield Of Information

Who ever knew a 14 year old could program and make
electronic stuff??
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