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Assemble the PhotogateV2 ESP32 Optical Timer

A classroom photogate: an infrared beam, an LM393 comparator and an ESP32 time pendulums, falling objects and carts and show the results… · 1 part · 5 steps · By Marcio Bulla

Gather the parts
Build the board
Print the case and arm
Wire and flash
Adjust and measure

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