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teensy-thumb-keyboard
Handheld tactile switch keyboard for Teensy 3.2 compatible boards.
pcbbom
dif-pressure-meter
ESP32 based differential pressure (and air flow) meter. Handheld, battery powered DIY device for measuring small pressure differences (Sensirion SDP810-500Pa).
schematicpcbbomESP32USB-Cswitchbuzzer