I had some more time to futz with the Access Control devices that TomG donated to the makerspace. I now have the LCD, keyboard and buzzer under control. The last big thing to tackle is the RFID card reader, but I don’t actually have an RFID card at the moment. After that I’ll work on an indoor unit to talk to this unit, check in with a central security db and run the door strike.
Below is the little game I programmed to demonstrate control of these peripherals.