![I built a controller for an RFID reader to open my garage door with my mountain bike helmet. : r/electronics I built a controller for an RFID reader to open my garage door with my mountain bike helmet. : r/electronics](https://preview.redd.it/sf3yyfawg0j71.jpg?width=640&crop=smart&auto=webp&s=a6f02a2701bb77b1680d3fe06a8a4d65dab332bf)
I built a controller for an RFID reader to open my garage door with my mountain bike helmet. : r/electronics
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