[Piano Board] AVR - Atmega128 프로젝트 (Piano만들기) 미완성

piano.pdf

lcd.h

piano.zip

 

// Piano 만들기 시작

1. Power ON/OFF 기능 구현

2. Key Matrix 입력시 스피커 출력 음계 구현

 

/*
 * piano-0911.cpp
 *
 * Created: 2018-09-11 오전 11:27:56
 * Author : USER
 */ 
 
#include <avr/io.h>
#define F_CPU 16000000
#define __DELAY_BACKWARD_COMPATIBLE__
#include <util/delay.h>
#include <stdio.h>
#include "lcd.h"
#include <stdlib.h>
 
//MODE 전원
#define PLAYMODE 1
#define OFFMODE 0
 
//음계
#define DO 261.63
#define RE 293.66
#define MI 329.63
#define FA 349.23
#define SOL 391.99
#define RA 440.0
#define SI 493.88
 
// Key Matrix 함수
unsigned char getKey(){
    unsigned char key = 0,result =0;
    for (int i=0; i<3;i++){
        if (i==0)PORTD = 0b11111110;
        if (i==1)PORTD = 0b11111101;
        if (i==2)PORTD = 0b11111011;
    
        _delay_ms(5);
    
        key = (~PIND & 0xf0);
        if (key){
            return key|(PORTD & 0x0f);
        }
    }
    return 0;
}
 
// 음계 출력 Buzzer(주파수, 출력횟수)
void Buzzer(double hz,int count){
    for (int i=0;i<count; i++){
        PORTB = 0xff;
        _delay_ms(((double)1000/hz)/2);
        PORTB = 0x00;
        _delay_ms(((double)1000/hz)/2);
    }
}
 
// 음악 저장
int school[25]= {SOL,SOL,RA,RA,SOL,SOL,MI, SOL,SOL,MI,MI,RE,SOL,SOL,RA,RA,SOL,SOL,MI,SOL,MI,RE,MI,DO};
int plane [25]=    {MI,RE,DO,RE,MI,MI,MI,RE,RE,RE,MI,MI,MI,MI,RE,DO,RE,MI,MI,MI,RE,RE,MI,RE,DO};
    
int main(void)
{
    DDRA= 0xff; // LED 출력 설정
    DDRB = 0xff; // 스피커 출력 설정 
    DDRD = 0x0f; // key Matrix 입출력 설정
    
    PORTA = 0xff; // LED OFF
    PORTD = 0xff; // Key Matrix 초기값
    
    int mode =0;
    
    char str[16];
    lcd_init();
    lcd_clear();
    /* Replace with your application code */
    
    while (1) 
    {        
        if (mode == PLAYMODE){
            lcd_putsf(0,0,(unsigned char *)"  PIANO START!  ");
            lcd_putsf(0,1,(unsigned char *)"    POWER ON!   "); // 꺼짐 > 켜짐 상태 변경 후 3초 뒤 사라짐.
            
        
            //itoa(getKey(), str, 2); // char 문자열을 2진수로 변환 itoa함수 stdlib.h헤더파일에 위치함.
            //lcd_putsf(0,0,(unsigned char *)str); // LCD 출력
            //lcd_putsf(0,1,(unsigned char *)"  ");
            if (getKey() == 0b00011110){
                Buzzer(DO,50);
            }
            if (getKey()==0b00101110){
                Buzzer(RE,50);
            }
            if (getKey() == 0b1001110){
                Buzzer(MI,50);
            }
            if (getKey() == 0b00011101){
                Buzzer(FA,50);
            }
            if (getKey() == 0b00101101){
                Buzzer(SOL,50);
            }
            if (getKey() == 0b01001101){
                Buzzer(RA,50);
            }
            if(getKey()==0b00011011){
                Buzzer(SI,50);
            }
        
        }
        else if (mode == OFFMODE){
            // 켜짐 > 꺼짐
            lcd_putsf(0,0,(unsigned char *)"  PIANO START!  ");
            lcd_putsf(0,1,(unsigned char *)"   POWER OFF!   ");
            //1초 후
            lcd_putsf(0,0,(unsigned char *)"    GOOD BYE    ");
            // 1초 후 공백
            lcd_putsf(0,0,(unsigned char *)"                ");
            lcd_putsf(0,0,(unsigned char *)"                ");
        }
    }
}