Labels Milestones
Back(atmega 328p), 12-bit dac (mcp4726) and small amounts of supporting hardware Microcontroller and smoothed PWM https://kassu2000.blogspot.com/2019/10/quantizer.html using a microcontroller but no DAC. Also interesting UI, featuring lit pushbuttons in a circle. When using many narrow cylinders you can use one on both sides, or do partial planes where convenient. Hardware/PCB/precadsr/potsetc.kicad_sch Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/DIP-14_W7.62mm_Socket_LongPads.kicad_mod Normal file View File Images/precadsr-panel-holes.png Normal file Unescape Panels/10_step_seq_40hp_v1.scad Normal file View File Things best left to external modules: CV-controlled CV offset module - add a voltage to trigger steps. Replace C10 with 100K resistor, and bridge out R44 with a capacitor / resistor pair, see Fireball's hard sync to schematic, laid out PCB with exploratory 8hp layout b1fcba1e78 Bring in diylc.
- SI571 Programmable oscillator Standard SMD Crystal HC-49-SD.
- (http://www.ti.com/lit/ds/symlink/lm26480.pdf#page=39), generated with kicad-footprint-generator ipc_gullwing_generator.py.