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Author Topic: Polar and Live Plotters on Arduino and MakerBeams  (Read 639 times)
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Stockholm, Sweden
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Just finished documenting two plotter projects I thought I'd share.

The first one is a Polar Plotter, meaning it has a rotating, extendable arm, that can be programmed to run a plot sequence. It supports drawing lines, rects, circles and text. The font used when drawing text is created with a Java program where you can load any truetype font and generate code that's useful for the Arduino program. The documentation might be useful for someone doing something similar. I think the construction or the font generation might be highlights of interest otherwise. The docs and full code is available on GitHub: There's also a video there.

The other project is a Live Plotter that is controlled from a browser. It has more of a traditional construction than the Polar Plotter. The main feature is that you can draw on an HTML5 canvas in the browser which sends drawing commands via a websocket to a server which in turn sends the commands to the Arduino board via serial comm using the usb cable. This project is documented at and does also have a video.

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