I just purchased a new 1.4 version of the OpenSprinkler. It was working fined, but I had issue with the network. Once I finally got those resolved, it would no longer drive any sprinklers.
I’ve tried just about everything. With/without the expansion board, etc.
I’ve measured the AC out of the zones, and I get a fixed 1.8-2.2v between common and the first 8 zones.
On the expansion board, I get 6.6-6.9V between common and all of the zones.
I have run the self_test, and I see no change when the zones are on/off.. so, something is wrong.
Is there a way I can troubleshoot and fix this? I have the skills to debug if I had a schematic.. but there is no 1.4 schematic posted on the github account.
Does this sound like an issue you are familiar with?