How to get Physical state of AC loads?

[Costas]

Maybe the following thread will give you some ideas:

Looking for a creative hack to check AC unit ON/OFF

Hey Blynkers, Need your creative thinking. I have this monster at home. [image] I hacked the IR signals from it’s remote, and now it’s a bit smarter, thanks to Blynk. It’s built on Photon as a control module, and I use another Photon with Temp sensor which acts as a thermostat. But, there is an issue. Sometimes my wife ignores the convenience of having an app and switches it on and off manually. Which, of course, can’t be reflected in the app. Overall, having a feedback that device is On…