Adafruit has this week announced the availability of a new Tri-Color eInk or ePaper display with SRAM. Priced at $22.50 the 2.13 inch display provides three colours in the form of red, black and white. The chip shares the SPI port the eInk display uses, so you only need one extra pin. And, no more frame-buffering thanks to the small SRAM chip on the back. Check out the video below to learn more about the latest arrivals at the Adafruit online store.
“Easy e-paper finally comes to microcontrollers, with this breakout that’s designed to make it a breeze to add a tri-color eInk display. Chances are you’ve seen one of those new-fangled ‘e-readers’ like the Kindle or Nook. They have gigantic electronic paper ‘static’ displays – that means the image stays on the display even when power is completely disconnected. The image is also high contrast and very daylight readable. It really does look just like printed paper!”
“This breakout as a 2.13″ tri-color (red, black and white) display. It has 212x104 black and red ink pixels and a white-ish background. 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 x 2 colors = 5.5 KBytes. Which won’t fit into many microcontroller memories. Heck, even if you do have 32KB of RAM, why waste 6KB?”
For full specifications of the 62.0mm x 40.0mm x 5.0mm Tri-Color eInk or ePaper display jump over to the Adafruit online store by following the link below.