No backlight, can be a long time to maintain the display of the last screenVery low consumption, basically only on refreshSPI control interface, can access for /Jetson Nano//STM32 and other main control boardOnboard level conversion chip, compatible with 3.3V and 5V microcontroller interfaceProvide complete information manual (for /Jetson Nano//STM32 and other sample programs)SpecificationWorking voltage: 3.3V/5VCommunication interface: 3-wire SPI, 4-wire SPIDimensions: 89.5x 38mmDisplay size: 66.89 x 29.05mmResolution: 296 x 128pixelsDisplay color: black and whiteGray level: 2Partial refresh: 0.Refresh consumption: 26.4mW(typ.)Sleep current: Less than 0.01uA (close to 0)Viewing angle: Greater than 170color: blueMaterial: Plastic+MetalPackage Contents:2 x Display2 x 20cm Connection CableOnly 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.