Saving a single value to context

[Paul-Reed]

I blame Julian (@TotallyInformation ) it's all his fault

Calculate the time of operation between ON and OFF given Boolean

Bit late to the conversation but I store last_on and last_off as part of any IoT switch, this is also sent to MQTT. When the state changes, I record the on_duration and off_duration: [image] The calculations are done by a single function node that enriches the known_devices data both in the global variable and MQTT. The updated and updated_by properties are ones that I now use as standard all over the place since my flows have got a bit complex. It means that it is much quicker t…