I am looking to monitor the power usage of my portable AC and determine what mode it is in based on the power usage. I bought a Shelly Plus Plug but the update interval can be measured in the tens of minutes because it only updates when there is a big change in the load. The difference between the AC’s modes is only a few dozen watts so this won’t work.
Is there a way to increase the interval of the power statistic updating or do I need a different plug? What hardware are most people using for this sort of fine-grained power usage monitoring?
I use zigbee based smart plugs myself at this time and I have one setup to monitor the current pulled from the washing machine to tell me when its running, idle or in an off state and I have another that I am using as a watt meter in my dashboard for my main PC to monitor the power draw of the system.
They update pretty much instantly as soon as power draw is detected.