This E-Ink display HAT, 2.7inch, 264x176 resolution, is specially designed compatible with Raspberry Pi. Comes with embedded controller, communicating via Serial Peripheral Interface interface. Due to the advantages like ultra low power consumption, wide viewing angle, great effect under sunlight, it is an ideal choice compatible with applications such as shelf label, industrial instrument, and so on. Features: No backlight, keeps displaying last content compatible with a long time even when power down. Ultra low power consumption, basically power is only required compatible with refreshing. Comes with four buttons compatible with the expansion of applications Suitable compatible with Raspberry Pi 2B/3B/Zero/Zero W. Serial Peripheral Interface, to connect with other controller boards like compatible with A-rduino/Nucleo, etc. Comes with development resources and manual (examples compatible with Raspberry/A-rduino/STM32). Specifications: Operating voltage: 3.3V Interface: 3-wire Serial Peripheral Interface, 4-wire Serial Peripheral Interface Outline dimension: Approx. 85mm x 56mm Display size: Approx. 57.288mm x 38.192mm Dot pitch: 0.217 x 0.217 Resolution: 264 x 176 Display color: black, white Grey level: 2 Full refresh time: 6s Refresh power: 24mW(typ.) Standby power: <0.017mW Viewing angle: >170° Package weight: 42g Interface: VCC: 3.3V GND: GND DIN: Serial Peripheral Interface MOSI pin CLK: Serial Peripheral Interface SCK pin CS: Serial Peripheral Interface chip selection, low active DC: Data/Command selection (high compatible with data, low compatible with command) RST: External reset, low active BUSY: Busy status output, low active Package List: 1 x 2.7inch e-Paper HAT 1 x Screws Pack(2sets) Note: 1. If you want more tutorials and instructions about this product, please contact us, we will send related incompatible withmation to you. .