LUNCHBEAT – 1 bit groovebox (video)

Minimalistic groovemachine !

  • 4 channels with 1 bit realtime generated sounds
  • kickdrum, snare, hihat and bass
  • 8 step sequencer


  • MCU atmega328p@16MHz
  • 8 LEDs with 74595 shift register
  • 3 bit R2R resistor ladder DAC
  • LM358 opamp as output buffer
  • buttons, pots, resistors, wires, protoboard


  • programmed in C
  • compiled with avr-gcc
  • uploaded with avrdude

sources soon –

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