Features at a glance

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

USB/SPI/I80 interface, for connecting with controller boards like Raspberry Pi/STM32, etc.

Comes with development resources and manual (examples for Raspberry Pi/STM32)

Advantages of EINK

E-paper display utilizes microcapsule electrophoretic technology for displaying, the principle is: charged particles suspended in clear fluid will move to sides of microcapsule when electric field is applied, making the microcapsule become visible by reflecting ambient light, just as traditional printed paper. E-paper display will clearly display images/texts under lamplight or natural light, requires no backlight, and features nearly up to 180° viewing angle. It is usually used as e-reader due to its paper-like effect.