Without backlight, the display content on the last screen can be for a long time after power failure Power consumption is very low, basically only during the refresh power consumption SPI control interface, can access Raspberry for Pi/ Nano//STM32 and other main control board Onboard level conversion chip, compatible with 3.3V and 5V microcontroller interface Provide complete supporting information manual (driver board schematic diagram, Raspberry for Pi/ Nano//STM32 and other sample programs) Working voltage: 3.3V/5V Communication interface: 3-wire SPI, 4-wire SPI Dot pitch: 0.169 x 0.169mm Resolution: 480 x 280pixels Gray level: 4 Partial refresh: 0.3s global refresh 3s Refresh power consumption: 50mW(typ.) Sleep current: Less than 0.01uA (close to 0) Viewing angle: 170degree Colour:blue Material:Plastic + Metal Size:96.5 x 58MM Display size: 47.32 x 81.12mm Package Contents: 1 x Display 1 x 20cm Connection Cable Only the above package content, other products are not included. Note: Light 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.