For a project I am trying to show availability of washing machines, located downstairs in my apartment building. Using the openenergymonitor, I would like to measure if there is electricity flowing to the washing machine. I am not interested in the actual power, just seeing if it is on or off.
The machines use 3 phase power, but to minimize the investment, I would like to use just one CT per washing machine. I am having trouble figuring out which Arduino code I have to use. I have tried single phase code, but, as expected, did not get a reading. All the code I can find use at least 3 CT’s to find actual power.
Can someone explain what I should change to existing code, or point me to the right github, so I can continue with this project?
Many thanks for your help!