Woah, the cyber-future is here! Flexible E-Ink has been demo’d at high tech events for years but now you can actually get your paws on it. This display is true E-Ink / E-Paper, once an image is displayed it will stay even once you remove all power. The image is also high contrast and very daylight readable. It really does look just like printed paper!
This flexible display sports a 2.13″ monochrome (black and white) display. It has 212×104 black ink pixels on a white-ish background. This is the same resolution as the 2.13″ Tri-Color display, but doesn’t have a red ink layer. The monochrome displays also take a lot less time to update, only a couple seconds instead of 15 seconds.
Please note: this display is flexible but that doesn’t mean you can constantly flex it. The video above showing a hand twisting the display is a looped demo, not an instructional video.
These displays should not be flexed/moved during a display update, you’ll get odd effects.
Continuously flexing it will eventually damage the display.
There’s no specification for how many times it can be flexed, so keep it minimal!
We recommend affixing the display to a stable backing to reduce stresses. E.g. it can be attached to a stiff curved bracelet to make a watch.
Using our CircuitPython or Arduino libraries, you can create a ‘frame buffer’ with what pixels you want to have activated and then write that out to the display. Most simple breakouts leave it at that. But if you do the math, 212 x 104 pixels = 2.5 KBytes. Which won’t fit into many microcontroller memories. Heck, even if you do have 32KB of RAM, why waste 2.5KB?
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