The Whadda WPI450 LCD display module is an Arduino compatible high speed I²C interface. It can display 20x4 characters (white characters on a blue background). * Supply voltage: 5V DC * Colour: blue background, white characters * Contrast: adjustable by trimmer * Interface: I²C * I²C address: 0x20 to 0x27 adjustable (default = 0x27) * Number of characters: 20 characters x 4 lines * Dot size: 0.55 x 0.55 mm (0.02 x 0.02") * Dot pitch: 0.60 x 0.60 mm (0.023 x 0.023") * Character size: 2.96 x 4.75 mm (0.11 x 0.19") * Character pitch: 3.55 x 5.35 mm (0.14 x 0.21") * Dimensions: 98 x 60 x 24 mm (3.86 x 2.36 x 0.94") https://elecena.pl/product/27149347/whadda-wpi450-i-c-20x4-blue-lcd-module 2024-11-06 https://elecena.pl/product/27149347/whadda-wpi450-i-c-20x4-blue-lcd-module 2025-01-01 https://elecena.pl/product/27149347/whadda-wpi450-i-c-20x4-blue-lcd-module 2025-02-06 https://elecena.pl/product/27149347/whadda-wpi450-i-c-20x4-blue-lcd-module 2026-05-12 https://elecena.pl/product/27149347/whadda-wpi450-i-c-20x4-blue-lcd-module 2026-07-21