Door Access ControlsProblem:
Access Control System At RPI Electronics Club stopped working and was to archaic and unreliable to revive.
Temporary Fix [img /Video]
|serial Terminal Interface||The 'Thrown together on a breadboard and glued to the wall' card reader||video:
The new card reader system is based on an atmega48, AVR microcontroller and an existing 2 track 7 wire magnetic card reader, and a 80's era serial terminal as the user interface.
Documentation to come...
Rensselaer Polytechnic Institute
Electrical & Electrical Power