Sunday, 6 March 2016

Bringing Nautical Charts To A Sunlight Readable Display

Road atlases are still published, but you wouldn’t know it if you have a smartphone and Google Maps. Most pilots who got their license a decade ago started on paper maps, but the iPad rules the cockpit today. On a single SD card, you can store maps for every square mile of the Earth’s surface. [Erland] figured it was high time for digital maps to go nautical and built a tablet-like device to display charts while sailing.

The Pi Chart is, of course, powered by a Raspberry Pi running a few dozen lines of JavaScript and HTML. Software wise, there’s not much to this build save for the new OpenGL-based rendering that allows for ultra smooth map rendering.

The hardware is where this build becomes useful, and for that, [Erland] is using a sunlight readable Pixel Qi display. A Li Ion battery provides about 10 hours of runtime, and a Bluetooth enabled GPS dongle tells the Pi exactly where the boat is.


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from raspberry pi – Hackaday
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