Monochrome 250x200 E-Ink/E-Paper FeatherWing Adafruit Monochrome 250x200 E-Ink/E-Paper Display FeatherWing breakout board is designed to power a 2.13-inch monochrome display. The FeatherWing is tested to work with Adafruit's Feather series. The device has built-in memory buffering, 3 Serial Peripheral Interface (SPI) pins, and up to 4 control pins to manage the SD card slot and SRAM. The 250px x 122px monochrome display has a higher resolution than the tri-color displays and takes less time to update.