Christmas Tree Water Level Indicator

I built this thing real quick last night so my dad could check the water level without having to crawl underneath the tree. After a handful of requests for parts lists/code on Reddit, I decided the best way to share said information was in the form of an Instructable, so here we are! This instructable was done with the same haste and disregard for quality as the project itself, so I’m sure there will be mistakes.
I will add some more pictures to this Instructable later this week.
Some Future Plans for This Build:
-Possible addition of automatic watering system. Solenoid valve with a gravity fed system is the most likely option.
-Might upgrade to a better and larger depth sensor.”

Link