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Save the data detected by the openplotter to avoid losing it at every reboot
#11
(09-13-2018, 01:50 PM)kste Wrote: Shy
Great, you made me discover the dashboard of chronogrf, really interesting to be able to quickly create graphs and store them.

However, my interest in resolving the visualization on the node-red graph remains...

With signalk apps & chronograf my node red has very little workload these days Smile
  Reply
#12
It works!
After a few sleepless nights, I succeeded!
It takes a query that returns x and y:
SELECT "time" AS "x", value AS y FROM volt WHERE time > now() - 6h;

then the function node to correctly format the array:

var chart1 = [{"series": ["A"],
"data": [
  msg.payload
],

"labels": [""]
}];
msg.payload = chart1;
return msg;
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