I've been looking to connect my old Renogy Commander 60 Charge Controller to SignalK for a while, but it is completely unsupported by Renogy as a legacy product. After exhaustive Google searches, I was able to discover it is basically an EPSolar E/ITracer and was able to find the appropriate RS-485 USB cable for it. I was hoping to plug it in and use it with srne-to-signalk plugin, but alas, it was a no-go. Turns out there is a very specific driver for the USB cable, which I found on GitHub, but the lack of software didn't really allow me to progress. In the end, I found a Python app, which at lease let me see that the Pi was communitcation with the Commander. After, faiing with all the other options/plugins, I found a EPSolar Node Red repository on GitHub. I imported it into Node Red and BOOM! There it was. All that was left was for me to insert some "Send--Path" nodes to get the info back into SignalK.
So most of the flow is not mine. The SignalK portions are and one extra flow I added to tell signalk the state of the charger is mine. But that is all easy. The credit goes to AdamWelchUK for his work here: https://github.com/AdamWelchUK/NodeRedEPEverDashboard
This flow uses ModBus to communicate with the Solar Controller. One day, I hope to add an interface to be able to send updated voltage changes back to the controller through this interface. These flows are already set up for it, but I need the interface to be able to update/change the settings. Not critical right now, so it's not on the ToDo list yet.
Here's the first of two flows:
And the second flow. Sorry but the code was too long to include in one post:
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So most of the flow is not mine. The SignalK portions are and one extra flow I added to tell signalk the state of the charger is mine. But that is all easy. The credit goes to AdamWelchUK for his work here: https://github.com/AdamWelchUK/NodeRedEPEverDashboard
This flow uses ModBus to communicate with the Solar Controller. One day, I hope to add an interface to be able to send updated voltage changes back to the controller through this interface. These flows are already set up for it, but I need the interface to be able to update/change the settings. Not critical right now, so it's not on the ToDo list yet.
Here's the first of two flows:
Code:
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