[richo]

OK so I can get the chart to plot if I use static data like this:
var dataPoints = [{y : 10}, {y : 13}, {y : 18}, {y : 20}, {y : 17}];

The live data that I want to plot looks like this (note this is taken directly from console.log user message:
{x: 12, y: 3.65}, {x: 16, y: 2.55}, {x: 17, y: 3.70}, {x: 17, y: 2.50}

However in debug mode, Chrome is putting quotation marks around it:
eg “{x: 32, y: 1.90}”

So my next question is, what is wrong with the following code that it has a problem with?
https://jsfiddle.net/richo/ktwuxp7h/1/#&togetherjs=JNEpPvLUPb

The actual error I get in the lower error console is:
Uncaught TypeError: Cannot use ‘in’ operator to search for ‘name’ in {x: 53, y: 2.05}, {x: 53, y: 2.35}, {x: 54, y: 3.75}
at H.V.setOptions (canvasjs.min.js:100)
at H.V (canvasjs.min.js:32)
at new H (canvasjs.min.js:138)
at m._initialize (canvasjs.min.js:171)
at m.render (canvasjs.min.js:202)
at UpdateGraph ((index):1)

[richo]

Thanks for that. Looks like you can’t give the chart an array directly, you must use a for loop to push it to the graph. I still cannot find a specific example that helps me. I almost got the graph to display data and no errors are generated, however my variables are null/empty.

I guess I need to know how to use getJSON for a local server, all the examples are using web based data whereas my data is presented by XMLHttpRequest.

[richo]

Thanks Vishwas
Project location lives here https://1drv.ms/u/s!AlhSUfM145axgakPSEyMbq4wtiSGoA?e=GnsSYi

The html.text file when modified is pasted into
http://davidjwatts.com/youtube/esp8266/esp-convertHTM.html#
which then makes the html arduino compatible, this is then placed into the arduino code lines 87-99.

The major issue is getting the dataAmps variable to plot on the graph. (See html.text line 109)