I have a Goldline GL-35 Solar Controller. It moves a 24V Actuator on a 3-way valve to direct water to the solar panels when heat is called for, and bypass the panels when no heat is called for.
For my DIY automation system, I need to know when the panels are active, so I can boost the output of the pump. And decrease the pump output when the panels are bypassed.
I have one potential solution, which is to add a microswitch inside of the valve actuator itself... I have a mockup working, assuming I can find a way to mount the microswitch inside the actuator, drill a hole in it for the wires, etc.
My thinking is that a better way would be to somehow get the "call for heat" signal right from the CG-35. There is a green LED that lights up when solar heat is called for. But I don't know how I would wire this to a raspberry pi input- (considering the GL-35 has its own power supply.. .I would think the two devices would need to be isolated)
Any electronic experts out there with ideas?
Also, I cannot find any type of schematic for the GL-35.
For my DIY automation system, I need to know when the panels are active, so I can boost the output of the pump. And decrease the pump output when the panels are bypassed.
I have one potential solution, which is to add a microswitch inside of the valve actuator itself... I have a mockup working, assuming I can find a way to mount the microswitch inside the actuator, drill a hole in it for the wires, etc.
My thinking is that a better way would be to somehow get the "call for heat" signal right from the CG-35. There is a green LED that lights up when solar heat is called for. But I don't know how I would wire this to a raspberry pi input- (considering the GL-35 has its own power supply.. .I would think the two devices would need to be isolated)
Any electronic experts out there with ideas?
Also, I cannot find any type of schematic for the GL-35.
