That does sound like what I want! New feature in 2.1.6 firmware, I think.
But, there isn’t much in the manual about it. Here’s all I see:
Remote station: a remote station is a physical station on another OpenSprinkler controller. This allows one master
controller to send commands to remote controllers in order to turn on their valves. Each remote station is specified by
the IP address, port number, and station index on the remote controller. The master and remote controllers must share
the same password.
Just ordered two OpenSprinkler pis assuming I can make this work….
In my case, the remote master must also control the pump relay. An example showing setup of controllers to do that would be great.
Has anyone tried this?