From Interlock Rochester Wiki

Contents 1 Members 2 Description 3 Plan 3.1 Function Testing 3.2 Second Factor 3.3 Disaster Planning 3.4 Tweaks and Geeks 4 Parts 5 References 6 Work Log

Members

• Antitree
• joshshua
• steve
• Brian

Description

Interlock needs an easy way to give members access to the space. It is important however, to maintain the ability to easily remove access punitively or as members choose to leave the group. The ability to keep track of who enters and leaves the space is not only helpful for security, but also could be used creatively.

Plan

Function Testing

Get a simple electronic lock system working:

• Electronic lock or electric strike
  • Need to know the type and size of door/frame we are working with
  • PDF How To Install Electric Strike
• Computer control of the strike
  • Arduino
  • Web interface is possible with ethernet shield
• Authentication system
  • RFID/Swipe Card/Key Fob or iButtons
  • Server to manage ACLS (LDAP server? See Infrastructure#Network)
• Audit logging

Second Factor

Additional authentication for extra security:

• Second factor authentication system (pin pad, touch screen pin pad)

Disaster Planning

Make sure the system functions appropriately during problems:

• Power Outage: Outbound - make sure people inside are not locked in.
• Power Outage: Inbound - make sure unauthorized people outside can't get in during an outage.
• Backup: Make sure a physical key is able to access the doors in case the system has a problem.

Tweaks and Geeks

Fun non critical additions:

• Twitter bot
  • Tweet hourly updates on who is in the space
  • Tweet when a person enters the space
• IRC bot
  • Regular updates on who is in the space
• Expand security to other items
  • KegBot security
  • Snacks and vending machine
  • Multiple areas within the space
• Website
  • Be able to see, live, who is in the space

Parts

• Fail Secure Electric Stike - kawamall.com
  • Voltage: DC 12V
  • Current: 450mA (NO function -- Normally Opened -- Fail Secure)
• Parallax Serial RFID Reader Kit - reader and some tags. USB only
• Arduino Ethernet Shield
• Arduino Diecimila

References

• http://code.google.com/p/webduino/ - run a webserver from an arduino
• http://arduino.cc/en/Reference/Ethernet - reference for working with ethernet
• http://www.arduino.cc/playground/Learning/PRFID - Hooking Parralax RFID to an arduino
• Sparkfun Kit - not used in this project but useful in general
  • RFID USB Reader
  • RFID ID 20 Chip for above controller board
  • data sheet
  • Breakout board for above ID 2,12,and 20 chips
• http://www.maxim-ic.com/products/ibutton/ - iButton

Work Log

• Received electric strike, rfid reader, arduino ethernet shield
• Purchased some arduino parts for testing parallax rfid chip --Antitree 00:27, 25 December 2009 (UTC)
• Purchased some parts to test user:berticus and user:antitree
• Planned meeting 12/21 at 6pm --Antitree 16:40, 21 December 2009 (UTC)