In order to improve my understanding of Software Defined Radios (SDRs) and wireless communication in general, I tinkered with cheap wireless sockets. The results are two pieces of software.
- Sniffer: This script can eavesdrop on the signals the remote control sends to the sockets. It displays the address, the socket identifier (A, B, C, D or E) and the state (on/off).
- Remote control: This script allows you to change the state of any socket by supplying the address and the socket identifier. Alternatively you can use the brute-force mode to turn on/off every socket within range.
If you are interested in the modulation, encoding and packet format of these types of wireless sockets, please have a look at Chris’s blog post on “Hart Gelötet” (German only, but with helpful pictures).
