Waveshare 4.37 inch 512 x 368 Pixel Red Yellow Black White E-Paper (G) Raw Display Panel

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. Come 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: 99.5 x 79.5 x 0.85mm
4. Display size: 90.11 x 64.77mm
5. Dot pitch: 0.176 x 0.176mm
6. Resolution: 512 x 368 pixels
7. Display color: Red/Yellow/Black/White
8. Grey level: 2
9. Full refresh time: 14s
10. Refresh power: Less than 61.7mW (typ.)
11. Standby power: Less than 0.01uA (almost none)
12. Viewing angle: Greater than 170 degree