1.Provide online user manual (examples for Raspberry Pi or Jetson Nano or Arduino or STM32), please check the manual carefully before using! 2.This is an E-Ink display module, 2.9inch, 296x128 resolution, with embedded controller, communicating via SPI interface, supports partial refresh. 3.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. 4.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 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.