Adafruit 2.13 HD Tri-Color eInk / ePaper Display FeatherWing - 250x122 RW Panel with SSD1680

Get easy e-paper functionality on your Feather with this awesome breakout. It makes adding a tri-color eInk display a piece of cake. You've probably seen e-readers like the Kindle or Nook. Their large electronic paper static displays keep the image on even when the power's off. The high-contrast image is super-readable in daylight, just like real printed paper. We've loved these displays for ages, and they're Feather-sized. That's why this custom e-paper FeatherWing is a great idea. It's tested to work with all our Feathers, from the ESP8266 to the M0. It has built-in memory buffering, so it can work with small chips like the '32u4 and '328. It does use a few pins: 3 SPI pins and up to 4 control pins for the SD card slot and SRAM. This FeatherWing features a 2.13-inch tri-color display in red, black, and white. It has 250x122 black and red ink pixels on a white-ish background. We used to have a lower-resolution 2.13-inch tricolor E-Ink version. This one has a 250x122 pixel resolution instead of 212x104 and uses a different chipset (SSD1680), so you'll need to recompile the code. With our CircuitPython or Arduino libraries, you can create a frame buffer with the pixels you want to show and write it to the display. But 250 x 122 pixels x 2 colors = 7.5 KBytes, which won't fit in many microcontroller memories. That's why we added a small SRAM chip on the back. It shares the SPI port with the eInk display, so you only need one extra pin. No more frame-buffering hassle! You can use the SRAM to set up your display content and transfer data to the eInk when you're ready. Our library does all the hard work for you, and you can interface with it like an Adafruit_GFX compatible display. We also added a MicroSD socket so you can store images, text files, or whatever you want to display. It comes assembled and tested with socket headers, so you can plug your Feather right in without soldering.

Using the Adafruit 2.13 HD Tri - Color eInk FeatherWing is easy. First, plug your Feather into the socket headers on the FeatherWing. No soldering is needed. Then, use our CircuitPython or Arduino libraries to create a frame buffer with the pixels you want to show. If you're using the SRAM, you can set up your display content there and transfer it to the eInk display when you're ready. The library will handle all the complex work for you. You can also use the MicroSD socket to store images and text files for display. When it comes to maintenance, keep the display away from extreme temperatures and direct sunlight for long periods. If you change the code, remember that this version uses a different chipset (SSD1680) compared to the previous one, so you'll need to recompile the code. Also, be aware that the FeatherWing uses several pins, including 3 SPI pins and up to 4 control pins for the SD card slot and SRAM, so make sure your Feather has the available pins.