For last couple of years, I have been looking for good automation system that I can use to automate my backyard pool and spa. All current systems available are outdated and overpriced. It is mind blowing to see how much Pentair, Zodiak or Hayward are charging for their systems. So, I decided to build my own.
It is powered by RaspberyPi running NodeJS, Node-Red, Node Red Dashboard coupled with 16 relays module and IntelliComm® II Interface Adapter. I really could have implemented software solution instead of overpriced adapter but I decided to focus on building hardware first.
I used DS18b20 Waterproof Temperature Sensors that I glued with J-B Weld epoxy to 1/2 in. MIP x 1/4 in. FIP Lead-Free Brass Pipe Hex Bushing and 1/4 in. x 1/4 in. MIP Lead-Free Brass Hose Barb Adapter.
Parts: