waveshare 400x300, 4.2inch E-Ink display module

hello world this is Luna from Tron card today we will discuss about eating display which is widely used on ear Adele's latest technology has follow the books and replaced with soft copies and videos NIC Sheridan save their interest and made first eating display the basic working is by using white and black tiny microcapsules positively charged white pigments and negatively charged blood pigments so by applying positive charge we can attract black pigments on the surface of the screen to make the text visible since there is no backlight and gradations and 170 degree wide viewing angle makes it feel like reading a newspaper this comes with four point five inch display module of resolution 400 by 300 with embedded controller communicating wire SPI interface and it supports bright black and white colors it was three to five volt DC with three wire and four wire spi pins it will take maximum