Jeremy Cook
UNITED STATES OF AMERICA • + Follow
Description
MIDI Kalimba Musical Instrument
After seeing a miniature Kalimba finger piano instrument, I realized I could convert it to a MIDI controller using a Raspberry Pi Pico and capacitive touch sensing. In the first version I manually soldered 1Mohm resistors to each tine to ground, and used jumpers to connect to a Raspberry Pi Pico.
For the second version, I came up with a custom PCB that features (16) 0603 SMD resistors onboard. This was manufactured by PCBWay and simplified kalimba wiring:
Overall it was a fun project, and code for both the large and small versions are available on GitHub. I also redesigned the PCB and have listed the assembled version for sale here. Both PCB versions use an .8mm board thickness.
Code
MIDI kalimba
https://github.com/JeremySCook/circuitpython-experiments/tree/main/capacitive-touch/midi-kalimba
Feb 20,2024
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MIDI Kalimba Musical Instrument
MIDI Kalimba created with miniature and larger-sized finger piano and Raspberry Pi Pico
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Published: Feb 20,2024
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