No need for backlight, power failure can keep the last screen display content for a long time.Very low power consumption, basically only when refreshing.Comprehensive documentation (driver board schematic, Raspberry Pi/Jetson Nano/RDK X3/Arduino/STM32 etc. sample programmes).The following applies to the modular version only:Based on Raspberry Pi 40PIN GPIO interface design, applicable to Raspberry Pi series motherboards, Jetson Nano, RDK X3.Reserved SPI control interface, can be connected to Raspberry Pi/Jetson Nano/RDK X3/Arduino/STM32 and other main control boards.On-board level shifter chip, compatible with 3.3V and 5V microcontroller interface Feature Operating voltage Bare screen version: 3.3V Grey level 2 Module version: 3.3V/5V Communication interface 3-wire SPI, 4-wire SPI Local refresh 2.9s Screen size 286.32 × 212.26 × 1.20mm Global refresh 22s Display size 275.52 × 195.16mm Refresh power consumption 75mW Dot Pitch 0.287 × 0.287mm Sleep Current 170° Display colours Red, black, white