Overview This is an E-Ink display HAT for Raspberry Pi, 2.13inch, 250x122 resolution, with embedded controller, communicating via SPI interface, supports partial refresh. Due to the advantages like ultra low power consumption, wide viewing angle, great effect under sunlight, it is an ideal choice for applications such as shelf label, industrial instrument, and so on. 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 Zero/Zero W/Zero WH/2B/3B/3B+/4 SPI interface, for connecting with other controller boards like Arduino/Nucleo, etc. Onboard voltage translator, compatible with 3.3V/5V MCUs Comes with development resources and manual (examples for Raspberry/Arduino/STM32) Specifications Operating voltage: 3.3V/5V Interface: SPI Outline dimension: 65mm × 30.2mm Display size: 23.71mm × 48.55mm Dot pitch: 0.194 × 0.194 Resolution: 250 × 122 Display color: black, white Grey level: 2 Refresh power: 26.4mW(typ.) Standby power: <0.017mW Viewing angle: >170° Package Contains 2.13inch e-Paper HAT x1 RPi screws pack (2pcs) x1 PH2.0 20cm 8Pin x1 Note: below is the raw display: https://www./dp/B071Z55J7R For more details you need to know, pls firstly send me message via , I will then send attached link including User Guide for you, thank you for patience.;D See moreV4: fully compatible with V3; and it provides the demo that can realize a fast refreshing function. V3: The resolution is 250 × 122, and the hardware structure and interface of the V3 are compatible with the V2, and the V3 demo is adopted. If you purchase it for the first time, and there is a V3 label on the back of the screen, you can use the V3 demo directly. Contact for more development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32). Onboard voltage translator, compatible with 3.3V/5V MCUs. Compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+. 250x122, 2.13inch E-Ink display HAT for Raspberry Pi, SPI interface. Part Number: 2.13inch e-Paper HAT (V4).