Welcome
Here is a Forum discussion where one developer developed a ‘seismograph’ using AI2 and the Accelerometer and a Canvas. He plots smooth x,y and z curves simultaneously. The example might be something you could do to plot your data… see Seismic …Look at the aia on the 6/25/14 post.
This example of course is not using a server to source the data stream; you would have to adapt the code. The example does plot a nice real time graph using the Canvas.