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.net Powerful JavaScript charts
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RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 15 years old) and has a wealth of features making it an ideal choice to use for showing charts on your website.

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Download
Get the latest version of RGraph (version 6.18, 1st June 2024) from the download page. You can read the changelog here. There's also older versions available, minified files and links to cdnjs.com hosted libraries.

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License
RGraph can be used for free under the GPL or if that doesn't suit your situation there's an inexpensive (£129) commercial license available.

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How can I use RGraph with an IoT ESP32 ESP8266?


Posted by JohnBras at 22:02 on Wednesday 6th December 2023 [link]
Did anyone use this with Arduino to make a gauge meter for temperature sensing, as an example, and a ESP8266 so that we can work offline ? Is there a tutorial how to get me started ?

Posted by Richard at 23:38 on Wednesday 6th December 2023 [link]
I've never done that or used such a 'thing' - but maybe this might help:

var value = 80; // <-- Change this 80 to be the value that you want to see on the Gauge

new RGraph.Gauge({
    id: 'cvs',
    min: 0,
    max: 100,
    value: value,
    options: {
    }
}).draw();

HTH

[Replies are closed]