This forked source code powers the NFC Door Unlocker project I created for conveniently unlocking and auto-locking my dorm room's door during my first year of college at Cal Poly while living in the Red Brick residence halls, which have doors with a traditional brass key lock. View build details, pictures, and hardware source files at the link above.
Original code written by Elmü on CodeProject.
Forked by Keavon Chambers in 2016 to simplify the project (removing battery-related features) and customize parts of the code related to my project (servo motor lock actuation, status LED, and auto-locking when the door is shut).
The software license is subject to the original author's Code Project Open License (CPOL) v1.02.