Adafruit eInk Breakout Friend with 32KB SRAM
Adafruit Industries, LLC mail
OSHWA UIDUS000377 Project Website
April 29, 2020
United States of America
The Eink Friend is much friendlier - it comes with 256 Kilobit (32 Kilobyte) SRAM chip. That means you can control up to a 4.2" 300x400 tri-color display (300*400 * 2 colors / 8 bits-per-byte = 30KB). This chip shares the SPI port the eInk display uses, so you only need one extra pin. And, no more frame-buffering! You can use the SRAM to set up whatever you want to display, then shuffle data from SRAM to eInk when you're ready. Click the link labeled 'Project Website' to find out more.
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