e-paper_display

E-paper display

E-paper display connected to Raspberry Pi

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E-paper display connected to Raspberry Pi. The text displayed is a .pgm image created with gimp. With a sample program it is possible to change the color of pixels and rectangles and load/display images from the shell.

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2 thoughts on “e-paper_display”

  1. Hello,
    I am in charge of design course at the university of Technology of Compiegne in France, could you tell us if it is possible to display text on e-paper without creating a gimp image.
    Thank you
    Best regards
    Anne

    1. Hi Anne,

      as far as I know there is no library available that allows for writing text on the display, but I might be wrong about that.
      The company producing the display released their own drivers and library, so I suggest you take a look at the code they provide for functions like "print" or "text". You can find the library here.

      Another approach would be to implement the typesetting yourself. Basically, a font needs to be defined that includes all the symbols of the desired alphabet and a look-up algorithm that creates a series of font-symbols based on the input string.
      This can then be printed on the screen.
      There are some examples for LCD displays available that you can use as basis, e.g. here. Although this allows to implement beautiful fonts it is also very time consuming.

      I hope I could help and good luck with the course!
      cheers
      Johannes

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