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 ...

Before today, we probably would have said that scratch-built relay computers were the sole domain of only the most wizardly of graybeards. But this impressive build sent in by [Will Dana] shows ...

After hours: February 20 at 5:42:12 PM EST Loading Chart for RLAY ...