Gatekeeper
Gatekeeper is the first node of our Hackspace Instrumentation project to go live and is responsible for access control to the space through the front "Airlock" door.
Schematic
Logic Flow
Quick Breakdown
- Nanode
- RFID reader
- Doorbell button (interrupt pin)
- magnetic release (MOSFET switch 12v)
- Magnetic contact
- Doorbell sounder (Relay)
- Magnetic release status led's red/blue
- Matrix keypad and HD44780 LCD controlled via I2C AtTiny2313
- MQTT
- MQTT scripts on holly push to irc twitter cacti and log
- Card numbers in 'Instrumentation' mySQL on Holly
- Web page to manage mqsl db, intranet only, htacess passwd