Basic command line tool to switch 433 MHz receivers through a Brematic GWY 433
There is a shellscript switch.sh that you have to call with 3 parameters: system-code, unit-code, on/off
system- and unit-code are both 5-digit binary codes, that resemble the DIP switches in your receivers. "System" ist the one with 1-5, "Unit" is the one usually with A-E.
The third parameter is the word "on" or "off"
Before you can use this script, you have to edit the script, and put in the IP-address of your gateway in line 10.
So ip="xxx.xxx.xxx.xxx" becomes something like ip="192.168.178.34" or whatever your gateway address is. I recommend to set the address of your gateway by DHCP to a fixed IP.
For the script to work, it is also necessary that nc is installed, the netcat-command. Usually you can achieve this by running sudo yum install nc on CentOS, RedHat etc. If you use a different OS or packet manager, you'll have to check how to do it.