Is the chart data on the device summary page available?

Notehub.io
1

There are some charts on the device summary page that show the last 12 hours of card readings for the voltage, temperature, signal strength and notes sent/received.

Is there an API method to request that data for a different time range? Or a good way to download a history of those data points?

We want to test a site for cell coverage before continuing an installation there. We can manually report the data ourselves by reading the values from a card.wireless request, but it would be really convenient for us to be able to pull the data that is apparently already being recorded.

Thanks!

2

rdimartino

You could, like we do for Sfaceast.org, route to an external DB and a Grafana instance. So can easily see the timeframes you want to know. Grafana.

grafana sample
grafana sample1920Ă—1080 445 KB

Regards,
Rob Oudendijk

3

Thanks, but this doesn’t really answer my question. Grafana is a great way to display the data, but I’m trying to figure out how to access the data that powers these graphs.

image
image1980Ă—1016 146 KB

I see that there is an API request made to https://notehub.io/project/<APP ID>/devices/<DEVICE ID>/chart-data that returns objects like

{
  "time":1693570729,
  "voltage":4.517,
  "temp":27.312,
  "bars":1,
  "notes_sent_and_received":6
}

I’m curious if there is a way to access that data for a different time range than window returned from that API call.

4

Hi @rdimartino,

I think what you are looking for is the “Get Sessions” Notehub API. This will return all _session.qo Notefiles for a given Notehub project. From there you can pull out temp, voltage, bars, and notes_sent.

Hope that helps!
Rob

2 Likes
5

Thanks, I think that’s exactly what we’re looking for!

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