sidenhancy

• Eurorack module based around the ARMSID SID chip clone
• Based around Atmega 1284p
• oled display and rotary encoder options
• CV inputs assignable to SID parameters
• Using mymenu and parameters

Hardware/PCB

• See Wiring.md for pin wiring (unchecked / incomplete / untested!!)
• Note that PCB FILES in pcb/ ARE NOT FINISHED, DO NOT USE THESE YET!!

Todo

• Parameters
  • Oscillator 1/root pitch
  • Oscillator 2 pitch
  • Oscillator 3 pitch
  • Oscillator 1 waveforms selectable
  • Oscillator 2 waveforms selectable
  • Oscillator 3 waveforms selectable
  • Oscillator 1 Pulse width
  • Oscillator 2 Pulse width
  • Oscillator 3 Pulse width
  • Oscillator Detune
  • Chord
  • Filter on/off for oscillator 1
  • Filter on/off for oscillator 2
  • Filter on/off for oscillator 3
  • Filter modes LP / BP / HP
  • Filter cutoff
  • Pitch Quantization settings
• Use SID ADSR?
  • optional so module can just be used as an oscillator
  • otherwise have ADSR for each oscillator be configurable?
• Menu system (using https://github.com/doctea/mymenu)
• Input via rotary encoder + buttons
  • (unreliably working with straight encoder)
  • todo: i2c rotary encoder
• System to map assignable inputs to parameters
• Display via i2c ss_oled
• CV inputs
  • Pitch
    • (working for 0-5v, quantised and not)
    • Make work with 2xPimoroni 24v ADS1015 breakouts
    • tuning / calibration functions
    • three of them, one for each oscillator?
    • pitch modulation
    • portamento/glide
  • Filter cutoff
  • Assignable input?
• internal LFOs?
• MIDI input
• Circuit
  • Schematic
    • in progress in pcb/
  • PCB
    • in progress in pcb/
• Panel