This is 2.13inch E-Ink display HAT for Raspberry Pi,250x122 resolution, with embedded controller, communicating via SPI interface, supports partial refresh. 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 label, industrial instrument, and so on. 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 Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano. Preserved solder pads for SPI interface, for connecting with other controller boards like Arduino/Nucleo, etc. - Onboard voltage translator, compatible with 3.3V/5V MCUs Operating voltage: 3.3V/5V.Interface: SPI.Display color: black, white. - Partial refresh time: 0.3s. - Full refresh time: 2s. - Viewing angle: >170°. 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.< br> 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 label, industrial instrument, and so on. Specification 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 Partial refresh time: 0.3s Full refresh time: 2s Refresh power: 26.4m - W(typ.) Standby power: <0.017m - W Viewing angle: >170°Package Content 2.13inch e-Paper HAT x1 RPi screws pack (2pcs) x1 PH2.0 20cm x1