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E Ink Displays For Your Raspberry Pi Projects

- Aug 20, 2018 -

E Ink displays

E Ink displays are accessible, they don’t need a lot of power, and they can display content without any power connection whatsoever — think Amazon Kindle if you’ve only a vague knowledge of the technology.

E Ink displays work using negative and positive charges. They contain tiny microcapsules suspended in a liquid within a film layer. The microcapsules consist of negatively charged black particles and positively charged white particles. By applying the correct charge, you control whether the black or white particles come to the surface.

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E Ink displays for your Raspberry Pi projects

So how and why would you use an E Ink display in your project? Simple! Aside from their low power consumption and indefinite display time, E Ink displays are relatively cheap, light, and interesting to look at. Plus, they’re easy to read in sunny conditions, which isn’t always true of LCD screens. And with e-readers now in their teens, there are plenty of forgotten devices collecting dust in drawers, ready to be repurposed.

REPURPOSING OLD E-READERS

If you've ever tried to use the"experimental browser"on a Kindle device, you' ll have found yourself transported back to the glory days of dial-up refresh rates and half-downloaded images. The only thing missing is the screeching connecting connection tone. However, by connecting your Kindle to the same network as your Raspberry Pi, you can create a web page accessible to the e-reader to display data to your E Ink screen.