How to call API on event based

[KarolisL]

I think your problem is similar to this one:

Falling edge detection with JSON payload

I have some sensors that are set up to send their data via MQTT to NR in JSON format. When they detect, they appear similar to: [image] I want to send an email notification when the battery drops below the warn threshold. Basically, when a battery is new, it reports as battery_ok=1. When it gets below whatever Acurite determines warning level, it switches to battery_ok=0. I can detect this with a falling edge node easily by using a change node to break the battery_ok value out, but then I …