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Controlling 433Mhz Power Sockets from openhab - sweat and tears!!!



Background

Ok so I have setup openhab2 on my Raspberry PI2 as a server running on Rasbpian Jessie. One component I have added is a cheap set of 433Mhz switchable power sockets (from Unitec). I added the 433Mhz transmitter to the GPIO pins on the Pi (system is only unidirectional, so no status information is sent from the sockets) and installed/compiled WiringPi from this great source.

Setup

Using the sniffer I found the RF codes (see openhab items below) for the sockets I had.

I created a BASH shell file called rf_send.sh in the same directory as

Integrating the code to fire the RF commands to the sockets for on/off via Openhab 2 as follows:

Default.Items File:

// Unitec 433Mhz Socket Switches
Switch  U433_Switch_Socket_1   "Door Light"        (Lights, Lounge)  { exec="ON:/usr/share/openhab2/bin/rf_send.sh 15, OFF:/usr/share/openhab2/bin/rf_send.sh 14" }
Switch  U433_Switch_Socket_2   "TV Light"         (Light, Lounge)  { exec="ON:/usr/share/openhab2/bin/rf_send.sh 7, OFF:/usr/share/openhab2/bin/rf_send.sh 6" }
Switch  U433_Switch_Socket_3   "Sofa Light"        (Lights, Lounge) { exec="ON:/usr/share/openhab2/bin/rf_send.sh 11, OFF:/usr/share/openhab2/bin/rf_send.sh 10" }

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