Display Heating Duration within Grafana Dashboard

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1

Morning all

I have setup InfluxDB Logger to a Influxdb running on a Raspberry Pi. I've then created a dashboard (see below) within Grafana to display my Energy consumption and Air Source Heat Pump activity.

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My thermostat is set up to request heat when the house temp drops 0.5C below the thermostat set temp. I would like to display the historical time that the heating system takes to return the home temp back to it's set temp.

My problems:

1/ I can't see an obvious device that can store a time duration (so that Influxdb Logger can export to my database),
2/ Nor can I see an obvious action that can set a variable to the difference between two times.

Rule so far:

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Any ideas or do I need to use the Transform function within Grafana?

@bravenel Hi Bruce. Whilst trying out options I noticed that the new rule machine can't set variables. Is there a reason for this?

2

Would be easy enought to write a custom device driver to capture, but you might want to look at

3

'Would be easy enough to write a custom device driver to capture'

@thebearmay

I really wouldn't know where to start! :rofl:

4

The first one is the hardest :sunglasses:. Take a look at @bptworld's app though as he does a thorough job at analyzing a problem and providing solutions. Can't remember if puts a duration value where you can grab it for Grafana, but if not he might be wiling to add it.

5

@bptworld Bryan, Help! :star_struck: :rofl: I haven't coded since the late 80's! :joy: :joy: :joy:

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