Adafruit E-Ink Display Breakout Friend provides power supply support circuitry and level shifting to enable E-Ink/E-Paper displays to be attached to development boards. The 24-pin E-Ink Friend features a 32KB SRAM chip that allows users to control the 4.2" tri-color display. The SRAM can set up the display and shuffle the data to E-Ink when needed. The chip also can be interfaced as if it were an Adafruit_GFX compatible display, or its CircuitPython or Arduino libraries will automatically use the microcontroller/microcomputer internal RAM. The board does not come with an E-Ink display.
32kB SRAM chip
Onboard 3.3V regulator
RESE resistor set to 0.5Ω
Up to 300x400 tri-color display support
Built-in level shifter for 3.3V or 5V power/logic
24-pin FPC connector
34.7mm x 21.5mm x 3.5mm dimensions
Built-in CircuitPython or Arduino libraries
Adafruit Flexible Monochrome eInk ePaper Displays
Flexible, high-contrast, low-power monochrome displays that simulate ink on paper.