[HSP] got tired of locking his door with a key, so he decided to upgrade to a keypad system which he’s designed himself. It uses an Arduino Mega with the standard 44780 display, a standard keypad, and ...
[Rob Hemsley] sent in an update to an RFID-based door lock. Previously, if you wanted to enter the MIT media lab, a RFID-enabled card was required to get in. Now, with [Rob]’s update, you only need to ...
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