Thanks so much, it works!
I’m going to spend the night trying to understand the fix!
Here are some photos of my project, if anyone is interested. The photon and relay board will go in a sealed box. The sensor daughter board will be outside of the case exposed to the elements in my greenhouse. Next step is to add a few (6-10) soil moisture sensor interfaces to the daughter board. The relays will control water valves and fans.
Thanks again!