Rangkaian Jam Digital LCD Menggunakan Mikrokontroler Atmega 16 - Electroze

Assalamualaikum

Halo :D , kali ini saya akan share tentang membuat Rangkaian Jam Digital LCD Menggunakan Mikrokontroler Atmega 16. Berikut bahannya ya :

1.  LCD 16X2
2. ATMEGA 16
3.  Resitor 100 Ohm dua buah
4. Push Button dua buah

buat rangkaiannya seperti gambar dibawah ini, Recomended pakai Proteus.

kemudian layoutnya jadi seperti ini

Untuk Scriptnya dibawah ini. Oiya software compilernya saya pakai Atmel studio. 

=====================================================================

#define F_CPU 4000000UL

#include <avr/delay.h>

#include <avr/io.h>

#include <string.h>

#include <avr/interrupt.h>

/*Global Variables Declarations*/

unsigned char hours = 0;

unsigned char minutes = 0;

unsigned char seconds = 0;

char time[] = "00:00:00";

/*LCD function declarations */

void LCD_send_command(unsigned char cmnd);

void LCD_send_data(unsigned char data);

void LCD_init();

void LCD_goto(unsigned char y, unsigned char x);

void LCD_print(char *string);

void LCD_update_time(void);

/*Timer Counter 1 Compare Match A Interrupt Service Routine/Interrupt Handler*/

ISR(TIMER1_COMPA_vect);

#define LCD_DATA_PORT PORTB

#define LCD_DATA_DDR DDRB

#define LCD_DATA_PIN PINB

#define LCD_CNTRL_PORT PORTC

#define LCD_CNTRL_DDR DDRC

#define LCD_CNTRL_PIN PINC

#define LCD_RS_PIN 5

#define LCD_RW_PIN 6

#define LCD_ENABLE_PIN 7

#define SET_HOUR 3

#define SET_MINUTE 4

int main(void)

{

unsigned char i;

LCD_init();

LCD_goto(1,2);

LCD_print("KELOMPOK TUJUH");

LCD_goto(2,4);

LCD_print(time);

LCD_CNTRL_PORT = (1<<SET_HOUR | 1<<SET_MINUTE);

TCCR1B = (1<<CS12|1<<WGM12);

OCR1A = 15625-1;

TIMSK = 1<<OCIE1A;

sei();

while(1)

{

if(!(LCD_CNTRL_PIN & (1<<SET_HOUR)))

{

hours++;

if(hours > 23)

hours = 0;

}

if(!(LCD_CNTRL_PIN & (1<<SET_MINUTE)))

{

minutes++;

if(minutes > 59)

minutes = 0;

}

_delay_ms(250);

}

}

/* This function sends a command 'cmnd' to the LCD module*/

void LCD_send_command(unsigned char cmnd)

{

LCD_DATA_PORT = cmnd;

LCD_CNTRL_PORT &= ~(1<<LCD_RW_PIN);

LCD_CNTRL_PORT &= ~(1<<LCD_RS_PIN);

LCD_CNTRL_PORT |= (1<<LCD_ENABLE_PIN);

_delay_us(2);

LCD_CNTRL_PORT &= ~(1<<LCD_ENABLE_PIN);

_delay_us(100);

}

/* This function sends the data 'data' to the LCD module*/

void LCD_send_data(unsigned char data)

{

LCD_DATA_PORT = data;

LCD_CNTRL_PORT &= ~(1<<LCD_RW_PIN);

LCD_CNTRL_PORT |= (1<<LCD_RS_PIN);

LCD_CNTRL_PORT |= (1<<LCD_ENABLE_PIN);

_delay_us(2);

LCD_CNTRL_PORT &= ~(1<<LCD_ENABLE_PIN);

_delay_us(100);

}

void LCD_init()

{

LCD_CNTRL_DDR = 0xFF;

LCD_CNTRL_PORT = 0x00;

LCD_DATA_DDR = 0xFF;

LCD_DATA_PORT = 0x00;

_delay_ms(10);

LCD_send_command(0x38);

LCD_send_command(0x0C);

LCD_send_command(0x01);

_delay_ms(10);

LCD_send_command(0x06);

}

/* This function moves the cursor the line y column x on the LCD module*/

void LCD_goto(unsigned char y, unsigned char x)

{

unsigned char firstAddress[] = {0x80,0xC0,0x94,0xD4};

LCD_send_command(firstAddress[y-1] + x-1);

_delay_ms(10);

}

void LCD_print(char *string)

{

unsigned char i;

while(string[i]!=0)

{

LCD_send_data(string[i]);

i++;

}

}

void LCD_update_time()

{

unsigned char temp;

LCD_goto(2,4);

itoa(hours/10,temp,10);

LCD_print(temp);

itoa(hours%10,temp,10);

LCD_print(temp);

LCD_print(":");

itoa(minutes/10,temp,10);

LCD_print(temp);

itoa((minutes%10),temp,10);

LCD_print(temp);

LCD_print(":");

itoa(seconds/10,temp,10);

LCD_print(temp);

itoa(seconds%10,temp,10);

LCD_print(temp);

}

/*Timer Counter 1 Compare Match A Interrupt Service Routine/Interrupt Handler*/

ISR(TIMER1_COMPA_vect)

{

seconds++;

if(seconds == 60)

{

seconds = 0;

minutes++;

}

if(minutes == 60)

{

minutes = 0;

hours++;

}

if(hours > 23)

hours = 0;

LCD_update_time();

}

=======================================================================

Selamat mencoba ya, semoga bermanfaat ya