Description : The LCD 2004A 20×4 blue color display is commonly used in embedded projects and various electronic devices. This display is 20 character by 4 line has a very clear and high contrast text upon a blue backlight, which is bigger than the 16x2 LCD display but the programming is almost same..
I2C Interface board for 1602/2004 LCD has PCF8574 I2C chip that converts I2C serial data to parallell data for the LCD display. It can be connected to a standard HD44780 compatible 16x2 or 20x4 Character Display Module that supports 4 bit mode. In general, LCD connection ..