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Build a DIY footswitch USB controller using CircuitPython and QT Py RP2040. This uses a micro switch, micro-controller and 3D printed snap fit parts. This footswitch can be programmed with CircuitPython to make custom keyboard shortcuts, macros and even media controls.

QT Py RP2040
https://www.adafruit.com/product/4900

Micro Switch
https://www.adafruit.com/product/818

Code on GitHub
https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/main/Single_Button_Footswitch/code.py

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USB Footswitch QT Py RP2040

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