Any tips on a DIY solution to panel monitoring?
My electrical panel has separate breakers for three different baseboard heaters and each major appliance for two apartments in my house. It would be illuminating to be able to set up something central to get a view of what's contributing to my electrical costs.
I've seen "Eyedro EYEFI-4" and "Emporia Vue Energy Monitor" and a few others. Emporia's solution seems close, but it's a closed system and there's no API access to the raw data, everything requires manual control from the app.
But what I'm really hoping for just the basic hardware which might be connected to an arduino or a hat on a Raspberry Pi, and which I could monitor with my own software. I've found this split core current transformer on Amazon, but I'm left with two problems:
- I don't know what I'd need to do to convert its output to something that, say, and Arduino could understand (i.e. a voltage from 0 to 5V for an analog_in). And.
- Given that the arduino only has 6 analog_in ports, how do I switch a port so that it can alternately take reading from more than 6 CTs? Might there be ab IC that could take a binary number on one set of pins (driven for example by the arduino output pins) and control a switch based on the number selected? Or is there another better way of doing this that I haven't imagined yet? (I'm sure there must be.)
I would love to get any advice as to the approach I should take. (Maybe not even arduino?) Then I'll be able to direct my research so as to improve my next question here. :)