python2-pifacenetctl

This python module provides a way to monitor the IP address of a headless Raspberry Pi which has a PiFace Digital fitted, by using LEDs on the PiFace. It will also allow the Raspberry Pi to halted by pressing and holding a button on the PiFace.

If you are using a distribution with netctl, (e.g. arch linux) you can also control wireless network functions.

It has the following features without the netctl module:

• Displays a single flashing LED if there is no IP address
• Displays a 4-led "sweep" to identify the start of the sequence, then shows a sequence on LED7-LED4 of the IP address, one nybble at a time
• Halts the Raspberry Pi when SW4 is pressed

With the netctl module, and a distribution such as archlinux which uses systemd and netctl, additional functionality:

• When no IP address is displayed, press SW1-SW3 to attempt to start a wireless connection. These are indexed by the order they appear in the following command:
  • netctl list | grep wlan0
• When an IP address is displayed, press SW3 to disconnect the network connection

Possible invocations:

• Import the 'pifacenetctl' module, instantiate the class, and use the 'run_state' method in your own loop.
• Import the 'pifacenetctl' module, instantiate the class, and call the 'run' method and let it loop for you
• Use the daemon:
  • python -m pifacenetctl start