1. No backlight is required, and the display content of the last screen can be maintained for a long time when the power is turned off. 2. The power consumption is very low, and basically only consumes power when refreshing. 3. The following is only applicable to the module version; based on the design of the for Raspberry Pi 40PIN GPIO interface, it is suitable for Raspberry Pi, for JetsonNano, and for RDK series motherboards. 4. The for Raspberry Pi HAT+ standard is adopted to improve the interoperability of the expansion board, help developers design and develop faster, and use various external devices more easily, expanding the functions and performance of the for Raspberry Pi. 5. The SPI communication interface is reserved for easy access to the main control board such as for Raspberry Pi / for Arduino / for STM32; the onboard level conversion chip is compatible with 3.3V and 5V level interfaces. Communication interface:3-wire SPI, 4-wire SPI Grayscale level:2 Global refresh:23s Refresh power consumption:Less than 15mW Dot pitch:0.1625 x 0.1625 (mm) Sleep current:Less than 0.01uA (close to 0) Resolution:296 x 160 pixels Viewing angle:Greater than 170° Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Type:B:E-Ink Screen Bare Screen Colour:Black Material:Metal+LCD Package Contents: 1 * E-ink screen bare screen 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.