E-Ink (Electronic Ink) display has several benefits compared to other display technologies: High Visibility and Contrast Wide viewing angle and super low power consumption. It can retain the display for a very long time after power is removed This is an E-Ink display HAT for Raspberry Pi, 2.7inch, 264×176 resolution, with embedded controller, communicating via SPI interface, supports red, black, and white three-color display. Due to the advantages like ultra-low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf labels, industrial instruments, and so on. Interface Dimensions: Features No backlight keeps displaying last content for a long time even when power down Ultra-low power consumption, basically power is only required for refreshing Compatible with: Raspberry Pi 4 Model B Raspberry Pi 3B Raspberry Pi 3B Raspberry Pi Zero WH Raspberry Pi Zero W Raspberry Pi Zero Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano SPI interface, for connecting with other controller boards like Raspberry/Arduino/Nucleo, etc. Onboard voltage translator, compatible with 3.3V/5V MCUs Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32) Stack perfectly on Raspberry Pi 4B/3B/3B via the 40-pin GPIO header. Specifications Operating voltage: 3.3V/5V Interface: 3-wire SPI, 4-wire SPI Outline dimension: 73.50 × 56mm Display size: 57.288mm × 38.192mm Dot pitch: 0.217 × 0.217 Resolution: 264 × 176 pixels Display color: red, black, white Grey level: 2 Full refresh time: 15s Refresh power: 26.4mW(typ.) Standby Current:  less than 0.01uA (almost none) Standby power: 170° Packing List 1 x 2.7inch E-Ink display HAT (3 colors) board 1 x 8-way JST plug to pigtail jumper wire (female socket terminated) 4 x 15mm spacer (2.00 mm diameter) with screws and nuts Resources Make new larger font for SPI e-Paper Schematic 2.7-inch e-paper datasheet Libraries for Raspberry Pi Wiki page