|Key Master RFID door access system|
Hackerspace Adelaide's RFID/NFC door access system
|Purpose||To announce one's entry to a hack session|
|Time spent||10 man-hours|
An Arduino based RFID/NFC door access system that sends users welcome information to LED signs in the hackerspace, as well as pinging the future hackerspace website to count user visits to the space.
- Ability to use cheap RFID fobs available from hackerspace adelaide.
- Ability to use Android (and iOS?) on phone NFC for entry.
- Talks wirelessly to an in house LED board.
- Talks over the internet to the hackerspace member website.
 Parts list
- Arduino Uno R3 - $24.95
- Adafruit PN532 NFC/RFID Controller Shield - $39.95
- MiFare Classic (13.56MHz RFID/NFC) 1kb Clear Keychain Fob - $2.50 x 20 = $50
- Adafruit CC3000 WiFi Shield with Onboard Ceramic Antenna - $39.95
- Jumper wires - $3.95
 ATR vs ATS
It sounds like ATR values are made up by the reader, partly from the ATS.
From the spec, section 22.214.171.124.3:
For contactless ICCs, the IFD subsystem must construct an ATR from the fixed elements that identify the cards.
That section describes the format of the ATR.
 Other Software/Hardware options
- overlook courtesy of Geordie.
- SNARC courtesy of Lemming.
 Similar Projects
- Finish writing the python card reading code.
- Write the API for the Rails member site.
- Write the Arduino code to display welcome messages to the LED board.
- Any recommendations for different hardware to use is more than welcome.
- Post ideas for future functionality here or to the email list.
- IDEA: ensure the RFID reader is compatible with the NFC devices in mobile phones, so we can use mobiles as well as fobs
- IDEA: ability to buy drinks using your fob and pay via paypal?
- IDEA: ...