I’ve been exploring ways to detect when my dishwasher finishes using power usage data, and I’d love to share my journey and ask for some advice. I’ve set up a power monitor using a CT Clamp on the circuit that powers my dishwasher, but unfortunately, it also shares the circuit with my refrigerator. This setup allows me to monitor the power consumption of the dishwasher, but it’s a bit tricky because of the shared appliances.
Here’s what the power usage looks like after the dishwasher runs: 
. Another example shows: 
. Initially, I tried using the Derivative integration to set up a trigger based on the power signature. It worked for a while, but I’ve noticed a few false positives and one instance where it missed the trigger entirely. 
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I’m wondering if there’s a better approach to identify the dishwasher’s specific power signature and use it as a reliable trigger. Maybe there’s a more advanced integration or a different method altogether. Any suggestions or experiences you’ve had with similar setups would be greatly appreciated! I’d love to hear how others have tackled this challenge.