1、LOW POWER CONSUMPTION: Electronic ink display module consumes very low power, basically only when refreshing, no need for backlight, power off can keep the last screen display content for a long time. 2、SPI INTERFACE: Electronic paper screen panel adopts embedded SPI control interface, which can access for RPi, for Jetson nano, for STM32 and other main control boards, so it can be used widely. 3、TECHNOLOGY USED: Electronic ink display panel uses microencapsulated electrophoresis display technology for image display, which is often used in applications such as readers because it is comparable to the display effect of traditional paper. 4、PRINCIPLE OF OPERATION: Electrically charged nanoparticles suspended in a liquid are subjected to an electric field and migrate, creating a display effect similar to that of conventional printed paper through reflection under ambient light. 5、APPLICATION SCENARIO: Electronic paper screen module can display images clearly in ambient light such as light and natural light, without backlighting, and with a viewing angle of almost 180 degrees.