Description: This is an E-Ink display HAT for Raspberry Pi, 2.7inch, 264x176 resolution, with embedded controller, communicating via SPI interface, supports red, black, and white three-color display. Ultra low power consumption, wide viewing angle, great effect under sunlight. With these advantages, it will be an ideal choice for shelf label, industrial instrument, and so on. Features: 1. No backlight, keeps displaying last content for a long time even when power down. 2. Ultra low power consumption, basically power is only required for refreshing. 3. Compatible for Raspberry Pi 2B/3B/Zero/Zero W. 4. With 4 keys, convenient to use. 5. SPI interface, for connecting with other controller boards like for Raspberry/Arduino/Nucleo, etc. 6. Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32). Specifications: Operating voltage: 3.3V Interface: 3-wire SPI, 4-wire SPI Outline dimension: 85mm x 56mm Display size: 57.288mm x 38.192mm Dot pitch: 0.217 x 0.217 Resolution: 264 x 176 Display color: red, black, white Grey level: 2 Refresh power: 26.4mW(typ.) Standby power: <0.017mW Viewing angle: >170° Interface Descriptions: VCC 3.3V GND Ground DIN SPI MOSI pin CLK SPI SCK pin CS SPI chip selection, low active DC Data/Command selection (high for data, low for command) RST External reset, low active BUSY Busy status output, low active Package Contains: 1 * 2.7inch e-Paper HAT (B) 2 * Copper Pillar Kit 1、No backlight, keeps displaying last content for a long time even when power down. 2、Ultra low power consumption, basically power is only required for refreshing. 3、Compatible for Raspberry Pi 2B/3B/Zero/Zero W. 4、With 4 keys, convenient to use. 5、SPI interface, for connecting with other controller boards like for Raspberry/Arduino/Nucleo, etc.