Looking at this myself & i dont think its that easy to just serial/parallel reliably.
I'm assuming you're talking 120v split phase with 180deg out of phase? So if you had exactly 1000W on each phase in use, if you joined the CT's you could just be cancelling the phases out, showing zero power -...
Gotcha - i'm trying to emulate the original unit signal as much as possible, voltage, frequency etc... Trying to avoid anything that may be hidden in software or cause unexpected grief down the track.
Voltage - even opto's have voltage ranges?, what was the voltage you measured? I dont want to...
My application is to use my batteries - i want to drain them as much as needed, but not too much, i can feed extra in with no issue/penalty & near enough is good enough. I know my usage really well and know how much power i have/need.
The effort involved in using internal/external CT's due to...
SUPERB Work!!! This is exactly what i'm looking for :) Thankyou so much for your effort.
I'll be doing a slightly different version, i'll have an ESP8266 with a web page - which has 4 buttons, Min - Lower - Higher - Max
Min - hold the signal high
Max - hold the signal low
Lower/Higher - hold...
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