pikocore

pikocore is a hackable, open-source, lo-fi music mangler based on the Raspberry Pi Pico.

read more here: https://pikocore.com

diy

• Website
• Schematic
• Bom
• Source code
• Firmware
• Instructions for uploading firmware
• Video demonstration
• Video DIY guide

usage

prerequisites

First install Go and then install pre-reqs:

make prereqs

This will install clang-format, cmake, the pico toolchain, gcc, python, and other useful packages.

build

SAMPLE_RATE=31000 make

The audio is taken from the audio2h/demo folder. You can edit the Makefile to choose a different folder. The max sample rate is 31khz, but if that doesn't work, try reducing it.

If you are using a 2mb pico, then you should do make build2 (the default is 16mb).

Then upload the build/pikocore.uf2 to your pico.

customization

If you want to turn off the LED, change WS2812_ENABLED=1 to WS2812_ENABLED=0 in the target_compile_definitions.cmake file.

If you want to use MIDI instead of clock in (requires itty bitty midi) then set MIDI_IN_ENABLED=1 in the target_compile_definitions.cmake file.

If you have a V2 PCB layout where the Function A and Function B knobs are swapped, set PCB_V2_LAYOUT=1 in the target_compile_definitions.cmake file.

dev

You can open a minicom terminal by running make debug after switching on DEBUG_X flags in main.cpp.

Easing functions generated with: https://editor.p5js.org/schollz/sketches/l5F_ZWjZM