2x16 character LCD Library for ATmega32/ATmega16

It is a simple LCD library that can be used for 8-bit mode or 4-bit mode.

The ports used here are :

1 - PORTC in Microcontroller Connecting to Data bits in LCD (From D0 to D7).

2 - PINB7 in Microcontroller Connecting to RS bit in LCD.

3 - PINB6 in Microcontroller Connecting to RW bit in LCD.

4 - PINB5 in Microcontroller Connecting to EN bit in LCD.

5 - In 4-bit mode the last 4 bits of PORTC are connected to the last for bits of LCD(From D4 to D7).

#Change the ports

You can change the ports of Microcontroller form lcd_lib.h file in the #define part as :

define LCD_DATA PORTC

define ctrl PORTB

define rs PINB7

define rw PINB6

define en PINB5

#How to use the library !!

First you have to Initialize the LCD by the LCD_init() function (or LCD4_init() in 4-bit mode).

Then use LCD_gotoxy(x,y) function (or LCD4_gotoxy(x,y)) to choose where to write ,the X parameter is the line number, you can choose to write in line 1 or line 2, the Y parameter is the character number in the line.

To type a character you can use LCD_write('character') function (or LCD4_write('character') for 4-bit mode).

To type String you can use LCD_write_string("string") function (or LCD4_write_string("string") for 4-bit mode).

To clear the LCD from any characters use LCD_clear() function (or LCD4_clear() function for 4-bit mode).

You can send a custom Command code by using LCD_cmd() function (or LCD4_cmd() for 4-bit mode).