This code is for an RFID door lock system using an Arduino. It reads the UID of the RFID card and compares it to a predefined ...

We hope that the Hackaday readers also think that the door sensor that [Alexander] developed ... The setup he put together includes an Arduino, a PowerSwitch Tail (a power cord that switches ...

This time around he’s built a solar-powered chicken coop door that opens in the morning, and closes at night. A single motor slides the door open and ... chip running the Arduino bootloader ...