Enhance your DIY projects with this versatile 3.5-inch e-Paper display module, offering a high-resolution of 384x184 It features a vibrant four-color palette (red, yellow, black, and white) that brings visuals to life with clarity and contrast Perfectly compatible with popular development boards including for Arduino, for Raspberry Pi, ESP32, and STM32, this display is ideal for a wide range of applications from educational tools to sophisticated industrial instruments. Its low power consumption and paper-like display make it suitable for portable devices and projects where power efficiency is crucial Whether you're a hobbyist looking to enhance your next project or a developer integrating displays into commercial products, this e-Paper module provides reliability and quality Specification:A:Module version Working voltage: Module version: 3.3V/5V Communication interface: 4-wire SPI Module version: 94.00 x 47.50 (mm) Global refresh: 20s / Specification:B:Nude screen version Working voltage: Nude screen version: 3.3V Communication interface: 3-wire SPI Grayscale level: 2 Nude screen version: 91.75 x 45.03 x 1.00 (mm) Fast refresh: 15s Display size: 79.68 x 38.18 (mm) Dot pitch: 0.2075 x 0.2075 (mm) Resolution: 384 x 184 pixels Refresh power consumption: Less than 30mW Sleep current: Less than 0.01uA (close to 0) Viewing angle: Greater than 170 Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use Color: As Shown Material: LCD Package Contents: 1 x e-Paper Display Module Only the above package content, other products are not included. Note: Light reflection 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.