Former controller: Hunter Industries Pro-C
Current controller: OSPi 2.2.36
request: integration of Hunter Industries (and remotes from other popular irrigation vendors) wireless remotes with OSPi to turn station(s) on and off manually. Example: http://www.hunterindustries.com/irrigation-product/remotes/roam
use case: when doing hands on work with the sprinkler system delicate WiFi devices don’t last long when around dirt and water which are prevalent when working hands on with an irrigation system. Installation, repairs, spring start-up, fall purging are examples of activities where remotes are a better choice.
Implementation: OSPi reads digital signal from Hunter Industries receiver and a) turn station on for some number of minutes or b) turns station off if it hasn’t already turner off.
Oddity: Hunter Industries remote receiver uses three (3) wires. Two (2) for 24 V AC and one for (I suppose) a signal that (I suppose) is 5 V DC based on the receiver board chips. It’s unclear to me where the signal is grounded because there’s no fourth (4) wire.
Out of scope: making a wireless transmitter and remote (because they’re already commercially available).