4-inch full-color electronic ink screen Using Elnk Spectra 6 (E6) technology, high contrast, high saturation color display No backlight required, the last screen display content can be maintained for a long time when the power is off Based on the for Raspberry Pi40PIN GPIO interface design, suitable for series motherboards, Nano, RDKX3, reserved SPI control interface, can be connected to for /for Nano/for RDK X3/for /STM32 and other main control boards Using the for HAT+ standard, improve the interoperability of the expansion board, help developers design and develop faster, use external devices more easily, and expand the functions and performance of the for Operating voltage: 3.3V Display color: E6 full color (E Ink Spectra 6) Communication interface: 2 Grayscale: 3-wire SPI, 4-wire SPI Global refresh: 19s Refresh power consumption: Less than 70mW Resolution: 600*400pixels Viewing angle: 170° (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:PCB+LCD Package Contents: 1 x Screen Module 1 x Connection Cable 1 x Screw Pack Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.