Not sure what protocol is for dredging up old posts but was hoping to slightly high-jack and ask advice on bringing some spa (outdoor hot-tub) control into the 21st Century. With Control4.
At the moment its a simple heater and pump motor all in one type system, with an air switch doing four functions (pump no heat, pump and heat, off, auto) and a potentiometer for a temperature control.
I'm happy/confident wiring relays or what ever may be required into the exsiting board - would something like the CA relays with an external thermistor work as a make-shift hot tub Control4 integration solution? Was wondering if anyone else has done this?