Pico/Pico2-based board for playing with synthesizers in CircuitPython.

https://github.com/user-attachments/assets/1fe45b23-2a2a-41f4-9afe-203840c703e8

Video demos:

• "tbish" TB-303 like synth, demo2: https://youtu.be/MjE2wdevc3M
• "tbish" TB-303 like synth, demo1: https://youtu.be/O4a5pk78DVM

Assembling

The PCBAs come with all SMD parts assembled. The components you will need to supply:

• 1 x Raspberry Pi Pico 2
• 1 x PCM5102 I2S Stereo DAC
• 1 x SH1106 128x64 1.3" SPI OLED
• 2 x PJ320A 3.5mm stereo jack
• 8 x RK09K 10k vertical potentiometer (or similar)
• 1 x EC11 rotary encoder

You will also need some headers and header sockets to attach the modules to the PCB. If using the enclosure, the top part expects the header arrangement to be:

• Pico:
  • Standard header pins on Pico (Pico H sold w/ these pins soldered)
  • Short socket headers for Pico on synthiota board
• OLED display:
  • Standard header pins on OLED display (usually sold w/ these pins soldered)
  • Short socket headers for OLED display on synthiota board
• PCM5102 I2S DAC
  • Standard header pins on PCM5102 I2S DAC board (usually sold w/ these pins soldered)
  • I2S DAC w/ header pins is soldered directly to the synthiota board, no socket

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