This is a Eurorack compatible gate sequencer. There are four potentiometers, one input and five outputs. Example video, photos, code and schematic are shown below.
Each potentiometer reads a value that is scaled 0 - 255. This is sent as an 8-step binary gate sequence out of each of the first four outputs. The fifth output is a clock signal generated by the microcontroller. This process is timed out using the clock input signal.
In this circuit, a minimal 8MHz ATMega328p without an external oscillator was used, without any issues of processing power. An Arduino or Teensy could be used instead.
Download the code here: http://milkcrate.com.au/_other/downloads/arduino/ADC_Binary_Sequencer.ino
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