Hiroyuki OYAMA- Designed the power circuit for the split-board configuration, separating the Main board (Audio + I/O) and the UI board, which carries multiple ADCs, 64 potentiometers, 32 key switches, and many LEDs — the most complex and costly part of the system.
By isolating the UI board, debugging becomes easier and re-spin cost is significantly reduced.
- During pin assignment cleanup, one GPIO line became available and is now assigned to UART1 TX for MIDI OUT.
- Added ESD protection for the USB Type-C data lines (PRTR5V0U2X-ES + ACM2012-900-2P-T002).
- Currently in datasheet and wiring verification phase before moving to PCB layout.
Power & USB Update
A project log for 64-Knob Virtual-Analog Synth on Pico 2
A 64-knob virtual-analog synthesizer on Raspberry Pi Pico 2 — fully tactile, no menus, real-time control.
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