RFID door lock

Here is Makers Local 256's version of what we are thinking of doing.

https://256.makerslocal.org/wiki/index.php/USB_Auth

Important features of Load of Fun lock system

• Cooperation with Sherwin and the rest of the tenants
• Should be extremely reliable. QA / field testing should be fun.
• Should cheap enough to replace all artists keys or work with the current lock system
• Should have an option to buzz people in for visitors
• Will be internal requiring access to two doors

Solutions

Wireless Networking

• Jeenodes
  • Do they have enough range?
  • What would the power situation be like?
  • What are the failure modes?

Wired Networking

• Ethernet shield and web server
  • One wire between door and router, second wire between router and server, and always on door server. As few "moving" parts as necessary.
  • would require people to be on the loadoffun wireless to buzz people in
  • could store access keys locally incase server melts down

Door Hardware

• Electric door strike
  • we have one but from our tests it will not work on the outside door. Great for door to studio
• Electromagnetic lock
  • requires a battery backup incase power goes out
  • requires a button to be pressed to exit

Third Party / Complete Solutions

What are the money and time costs of using a pre-packaged solution?