Difference between revisions of "Gatekeeper"
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Revision as of 02:27, 11 April 2012
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.
Pics
Error in widget Flickr gallery: Unable to load template 'wiki:Flickr gallery'
Source Code
The firmware that runs on the arduino cane be found here
https://github.com/NottingHack/Gatekeeper
The code for the database and the process that run on Holly can be found here
https://code.google.com/p/nottinghack-instrumentation/
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
Notes
6 Core alarm cable run to airlock door
- magnetic contact on black and white core
- door magnetic release green and yellow cores
- last man switch on blue and red cores