Fangrui Product Details Enhance Your Diy Projects With Our Versatile 1.54-inch E-ink Display Module, Compatible With A Wide Range Of Devices Including For , Stm32, And For Models. This Spi Epaper Screen Is For Applications Requiring Low Power Consumption And Clear Visibility In Lighting Conditions. Low Power Consumption: Ideal For Battery-powered Projects. High Visibility: Clear Display Under Direct Sunlight. Wide Compatibility: Supports Multiple Platforms And Development Boards. Working Voltage:bare Screen Version:3.3v Display Size: 27.0 X 27.0 (mm) Dot Pitch: 0.135 X 0.135 (mm) Resolution: 200 X 200 Pixels Display Color: Red, Yellow, Black, White Grayscale: 2 Fast Refresh: 15 Seconds Global Refresh: 20 Seconds Refresh Power Consumption: Less Than 30mw Sleep Current: Less Than 0.01ua (close To 0) Viewing Angle: 170 Due To Different Batches, There May Be Differences In Product Appearance And Printed Text, Which Not Affect Use. Specifications:b:bare Screen Version 1.54inch-e-paper-(g) Colour:as Shown Material:glass Dim