Create a real time chart in MIT app inventor with data from bluetooth

Hey all. Im new to app creation and would like to ask a question.

I created an app that shows a value in numbers (coming through bluetooth by turning on a potentiometer). My question is, is it possible to create a real time line chart with these values in MIT app inventor?
I cant seem to find a create chart option in the palette.

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There's a canvas you can draw on, and a lot of sample blocks to do it

if you search for "graph" using the search box at the top of this page.

But no graph primitive, sorry.

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I can offer this solution 
How to generate an animated Pie Chart using the Chart.js library
pie.aia

you could adjust that solution to display a line chart, see also http://www.chartjs.org/

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Will check it out, thanks!

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check out "biorhythm" in the gallery to see how to drw axes and scale plot data. 

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