4x20 Slim OLED (NHD-0420CW-AY3) Engineering Support December 13, 2021 16:32 Newhaven Display's 4x20 Slim OLED display demonstrating double height characters and scrolling text. Related articles US2066 NHD-0420DZW (6800 4-Bit/8-Bit) - with Arduino Example Code and GitHub Tutorial How To Avoid Image Burn-in 10/06/22 NHD-0420CW-AY3