The 2.9inch e-ink screen has low power consumption and wide viewing angle, which is ideal for price tags, shelf labels and industrial instruments, etc
No need for backlight, can keep the display content of the last screen for a long time after power off
Very low power consumption, basically only consumes power when refreshing
Provide complete supporting information manual (driver board schematic diagram, example programs for Raspberry Pi/Jetson Nano/STM32)