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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, clear display without electricity, 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 Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano 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 Pi/Jetson Nano/Arduino/STM32) Specifications Model number 2.13inch e-Paper HAT (G) 2.13inch e-Paper HAT operating voltage 3.3V/5V 3.3V/5V interface 3-wire SPI, 4-wire SPI 3-wire SPI, 4-wire SPI outline dimensions 65 × 30.2mm 65 × 30.2mm display size 48.55 × 23.70mm 48.55 × 23.70mm DOT PITCH 0.1943 × 0.1942mm 0.1943 × 0.1942mm RESOLUTION 250 × 122 pixels 250 × 122 pixels display color Red/Yellow/Black/White black, white grey scale 2 2 partial refresh time 0.3s full refresh time 25s 2s refresh power 26.4mW (typ.) 26.4mW (typ.) standby current 170°   Advantages of EINK E-paper display utilizes microcapsule electrophoretic technology for displaying, the principle is: