Waveshare 3.97inch E-Paper Display, E-Ink Display, 800 × 480 Pixels, Red/Yellow/Black/White, SPI Interface, Standard Raspberry Pi 40PIN GPIO Header, Raw Display, Without Driver Board

No Backlight with Persistent Display: The display has no backlight but retains the last shown content for an extended period, even when power is turned off, offering excellent power efficiency.
Ultra-Low Power Consumption: With minimal power required only for refreshing, this display is optimized for ultra-low power operation, ensuring long-lasting use with minimal energy consumption.
High-Resolution and Color Options: The raw display features a resolution of 800 × 480 pixels, with a color range of Red, Yellow, Black, and White, providing clear visuals in various color schemes.
Fast and Efficient Refresh: The display offers a fast refresh time of 13 seconds for partial updates and 21 seconds for full refresh, while maintaining a refresh power consumption of less than 90mW.
Compact and Versatile Design: The raw display has compact dimensions of 96.62 × 56.24 × 0.92 mm, and supports both 3-wire and 4-wire SPI interfaces, making it suitable for a wide range of applications.
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