RFID reader demo

works with the ACR122 nfc reader, possibly with others, using node-nfc lib: https://github.com/camme/node-nfc

outputs a json message in stdout:

node index.js

output:

{"type":"detect","uid":"47-22-91-00"}
{"type":"remove","uid":"47-22-91-00"}

also, you could pipe these events into mclient:

node index.js | mclient -n blib -t rfid -i json

Steps to create a RaspberryPI + ACR122 compact package

Combining the ACR122 with a Raspberry pi seems like a nice idea. It results in a compact setup that only needs a bit of power if you equip the raspberry pi with a wireless dongle.

The idea is as follows:

• make ACR122 work on RPi
• make the RPi discoverable over the network (using avahi)
• add mhub as a message server
• add a simple server to display a setttings / howto page
• allow configurable post hooks
• wrap the whole in a nice box

The execution is a bit more elaborate:

• setup the pi with a basic image
• boot, enable ssh
• change password
• make pi boot to console
  • sudo raspi-config
  • in boot options, choose console
• make pi discoverable [1]
  • sudo apt-get update
  • sudo nano /etc/dhcp/dhclient.conf
  • send host-name "nfc-pi"; don't forget the semicolon at the end
  • sudo apt-get install samba
  • sudo apt-get install winbind
  • sudo nano /etc/samba/foreversmb.conf
  • workgroup = WORKGROUP this should be the windows network group
  • sudo nano /etc/nsswitch.conf
  • hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4 wins
  • sudo reboot ! this does not work yet, not quite sure what's going on
• install git
• install nodejs
• install libnfc
• install the nfcReader package
  • git clone https://github.com/rikkertkoppes/nfcReader.git
  • cd nfcReader
  • npm install
• plug in the ACR122 and testrun (as root to be able to claim the USB interface)
  • sudo node index.js
  • this should react to nfc / rfid tags
• install mhub:
  • sudo npm install -g mub
• install forever
  • sudo npm install -g forever
  • sudo npm install -g forever-service
• provision mserver as a service (to autostart it on boot and restart if it crashes)
  • sudo forever-service install mserver -s /usr/local/bin/mserver
  • sudo update-rc.d mserver defaults
  • sudo service mserver start ! this does not work yet, dunno what's going on

[1] More info:

• https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=7795
• https://rasspberrypi.wordpress.com/2012/09/08/connect-to-rasspberry-pi-using-hostname/