This article describes how to use the Beaglebone black to communicate with cheap remote control sockets using RF433. There’s plenty of other posts out there describing how to communicate using the Arduino or ESP8266 platform, using their respective rc-switch & rf-switch libraries. However I wanted to take advantage of the Beaglebone’s built in PRU’s. They’re perfect for doing time timing critical tasks such as this. The Mercury RC-5 Sockets I used are readily available in the UK.