Looking for some help with what Arduino equipment I need to get started on this. Also some help on the code for valves to open and close at different times on a delay. I’ve read that I might need a relay (not sure what that is). Anything helps
Valves: https://www.electricsolenoidvalves....Vjbjt1BhhEjBM4gksZV28tS8jLryUA6IaAhFFEALw_wcB
Heat Exchanger: https://www.amazon.com/TC-Home-Prop...2&sprefix=tankless+hot+wa,aps,91&sr=8-30&th=1
Pump: https://www.amazon.com/Acquaer-Shal...79436093&sprefix=jet+well+pupm,aps,257&sr=8-6
