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Oh. That's a good one. I'm not sure where you got a smart plug that handles the power needs of a dryer.... Unless the dryer isn't an electric dryer.... I guess.

But there's other options. There's both pre-built and DIY power monitoring solutions that use clamps on the hot wires to measure amperage, so that's an option.

I was just thinking to tie a sensor wire into the LED that lights up when "cycle finished" is activated. As soon as it pulls high, send a notification.

Your solution also sounds good tho.

Just goes to show that there's many ways to solve the problem that isn't spending an extra (however much money) to get a fancy smart appliance.

I was thinking of doing the same idea with the stove, run a wire to each light for "hot surface" on my stove, and when that's pulled high for more than, say, an hour, send an alert. Also get an oven-temperature-safe thermal probe, and wire that to a sensor line on an esp32 or similar and read the value. I'd need to calibrate the electrical signal to temperature, but after that, it would be able to report the internal temp of the oven with a decent amount of accuracy. Just run that thermal probe into the oven next to the built in one that regulates the temp when the oven is on.

Ideally, I want both energy usage and temp monitored for the stove.