Due to the current and frequent demands :
PILIGHT is acutally not supported anymore!

We recommend to use pimatic with homeduino and an arduino nano.

You can learn more here :
https://github.com/pimatic/pimatic-homeduino (this is the pimatic plugin)
https://github.com/pimatic/homeduino (this is the arduino library that needs to be flashed)
http://forum.pimatic.org/topic/202/4-homeduino-433-mhz-sending-receiving-and-even-more (this is the Howto with pictures and tips)

If there’s anybody who wants to update and maintain the pilight plugin, just tell us and go ahead.