[Rokhead]

After reading more on this – I see that your OSBee is similar to what I am looking to do with battery powered ESP board (though probably more than I need) but I like your h bridge implementation over a standard relay.
However, it seems as if your OSBee board is meant as a stand-alone controller, such that for my requirement of 3 different zones, I’d need 3 different controller instances to maintain, instead of one instance of OpenSprinkler having 3 wireless zones.
Am I correct in this assumption?

[Rokhead]

my prior response is not appearing here (maybe in moderation queue?)

What I said was essentially, I was planning on using a relay board controlled by an ESP8266 (or similar with wifi)

So instead of:
RaspberryPi/OpenSprinkler -> direct wire -> sprinkler valve
I would have
RaspberryPi/OpenSprinkler -> wifi -> ESP board & relay controlling sprinkler valve

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