Good news, got it all working! I unknowingly pulled the repo to my Downloads folder but already had it in the arduino libraries folder so I was changing the wrong file.
Would be great if we could get an up to date version for ESP32, initial testing shows its great for OpenSprinkler. The interface is fast and it only costs $5 or less per esp32 dev board. Seems like the OP is no longer around :(. I’ll update the bin files on my link as a activate on high and second one for low.