Thus 4 bit mode data transfer is most commonly used. 4 bit communication is bit slower than 8 bit but this speed difference has no significance as LCDs are slow speed devices. The idea of 4 bit communication is introduced to save pins of microcontroller. In this 8 bit data is divided into two parts and are sent sequentially through the data lines. That is 8 bit data is send at a time and data strobe is given through E of the LCD.īut 4 Bit mode uses only 4 data lines D4 to D7. In 8 Bit mode character data (as 8 bit ASCII) and LCD command are sent through the data lines D0 to D7. These differs in how data and commands are send to LCD. You can download the header file from the bottom of this article.ġ6×2 LCD can be interfaced with a microcontroller in 8 Bit or 4 Bit mode. To solve this difficulty we developed a LCD library which includes the commonly used features. Interfacing 16×2 LCD with Atmega32 Atmel AVR Microcontroller using Atmel Studio is bit complex as there is no built in libraries. It can display 2 lines of 16 character and each character is displayed using 5×7 or 5×10 pixel matrix. 16×2 character LCD module is a very basic module which is commonly used by electronic hobbyists and is used in many electronic devices and project. As we all know LCD ( Liquid Crystal Display) is an electronic display which is commonly used nowadays in applications such as calculators, laptops, tablets, mobile phones etc.
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