jensKeyboard
Submitted by f0 on
a cheap little circuit that reads 10 analog controllers (8 knobs and 1 joystick). i built it for my neighbour jens' portable keyboard project. it's using an atmega88 and a 4051 multiplexer to get 10 analog-to-digital converters. a standard max232 with some caps lets the atmega88 talk to the serial port of the computer.
attached is schematics, avr firmware and a max/msp patch for testing.
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