Using Canvas for my EMG sensor signals

[ChrisWard]

Observations - surely your chart should use the same data that is stored in the Cloud?
There is a good Chart extension which might handle the data better (and be easier to code). You may recognise the Developer.......

[Free] ChartMakerPlus - an extension to make google charts

1. Introduction The original and popular Chartmaker extension has been in use by AI2 developers for years, and has provided a quick method to generate simple charts for pie, bar or line. This extension is a complete rewrite of the original, builds on what was there, and offers many new features: two new charts: column and table a boolean to turn zoom on and off exposes the ability to add other options simplifies data compilation - straightforward and user-friendly lists of lists returns sele…