Waveshare 4.2 inch 400x300 Pixel Yellow Black White Three-color E-Ink Raw Display

400x300, 4.2inch E-Ink raw display, yellow/black/white three-color, SPI interface, without PCB Overview 1. This is an E-Ink raw display, 4.2inch, 400x300 resolution, with embedded controller, communicating via SPI interface, supports yellow, black, and white three-color display. 2. Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, and so on. Features 1. No backlight, keeps displaying last content for a long time even when power down 2. Ultra low power consumption, basically power is only required for refreshing 3. Comes with development resources and manual (driver board schematic, examples for Raspberry Pi/Arduino/STM32) Specifications 1. Operating voltage: 3.3V 2. Interface: 3-wire SPI, 4-wire SPI 3. Outline dimension: 90.1mm × 77.0mm × 1.18mm 4. Display size: 84.8mm × 63.6mm 5. Dot pitch: 0.212 × 0.212 6. Resolution: 400 × 300 7. Display color: yellow, black, white 8. Grey level: 2 9. Full refresh time: 15s 10. Refresh power: 26.4mW(typ.) 11. Standby power: <0.017mW 12. Viewing angle: >170 degree