VRRVRR

LED-flashing, haptic metronome with presets and tap tempo

Turi

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VRRVRR is a visual and haptic metronome, an aid for musicians. Unlike traditional metronomes, it keeps the tempo by vibrating and blinking its LEDs.

1 × Raspberry Pi Pico
1 × 4x4 keypad matrix. I removed its connector and soldered the exposed terminals to pin headers on the Pico
4 × common-anode RGB LEDs (non-addressable). They come with their own resistors
1 × Lithium battery
1 × TP4056 battery charger module