I have the node-red-contrib-graphs working but it is a little kludgy. I want to direct the data to a file at the same time so that if it does refresh or the flows have to restart they pull back the historical data. Before I start I am looking for flows to build this from if you folks have anything y…

[image] vlturner: I have the node-red-contrib-graphs working but it is a little kludgy That hasn't been updated in 5 and a half years! I'm amazed that it works at all! Dashboard has lots of options for charting I think. There are other options too and I've included lots of charting examples …

I see what you've been working on, do you have anything as a flow as a starting point?

Install node-red-dashboard, then see if the Chart node does what you need.

I have charts, they are limited. I want to add historical data too. What would be nice is to go 12-18 months back for weather data and have the graphs scale. NOAA data is worthless since the historical Highs and Lows are not accurate. I want the graphs to use in my vineyard over time. The current sy…

For such an application I highly recommend using influxdb for keeping the data and grafana for displaying it. That will give you vastly more sophisticated graphs than you will get using using node-red for the graphs.

Does that comment have some relevance to my suggestion?

My suggestion would be to put all of that data into InfluxDB if it isn't already. It is specifically designed to handle such historic timeseries data. You can then very easily use Grafana to produce your charts. It has a query builder that makes it easy to get specific data and summarise it however…

Node-red-contrib-graphs and historical flow

Dashboard

vlturner 28 February 2021 07:42 7

I don't want it to keep connected to the internet and its only 1 sample per minute. Morons at NOAA cant keep that granularity and you now can only get data to 2010 because it exposes their climate fallacy. Oldest data in USA is in BOSTON and the API refuses to expose it. Spent months showing them their API is broken.

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Node-red-contrib-graphs and historical flow

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