@danfinlay: you said
I’ve updated to the latest version (1.0.7) (following https://github.com/rszimm/sprinklers_pi/wiki/Upgrading)
, sounds like you were running Rich’s sprinklers_pi program? Note that the sprinklers_pi program has a built-in mobile interface, and it is not the same with Dan’s interval program (which is what OpenSprinkler mobile app supports).