Displaying information is one of the crucial steps in electronic projects. So using LCDs has always been one of the most popular ways to display information. This 1602 LCD module is a very popular display. 16*2 LCD module consists of 16 columns and 2 rows, so it has 32 (16*2) characters in total. Each character has 40pixels (5*8) and thus for 32 characters there 1280 pixels (32*40). An interface IC HD447480 attached to the backside of the LCD module to determine the position of the pixel. This IC gets commands and data from the microcontroller and processes it, thus display it on the screen. The onboard potentiometer used for screen contrast adjustment. It is quite simple to work with these LCDs s and they have full compatibility with all microcontrollers and processor boards.
This big character LCD display module comes with black text on a green background. LCD modules are the most prominent as they are low cost and program friendly, hence these modules are commonly used in the embedded system. This display module works on 5V and has a green backlight which can be on or off as per requirement. This module consists of a minimum of 6 I/O pins to interface this LCD screen. Moreover, it can work in both 4 bit and 8-bit MCU interfaces.