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Hardware projects tagged mains-voltage

Open hardware projects tagged mains-voltage on BoardRepo. View schematics and PCBs in the browser and download the sources.

Projects

1 board
mainsfrequencymonitor
@qeteshpony

Single board solution to power an ESP32 and use it to measure the mains frequency through an optoisolator

schematicpcbbomESP32switchpotentiometerresistor
BSD-2-Clause0 stars0 commentsJul 9, 2026

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