AM2322温湿度センサの使い方！！

// PIC16F1827 Configuration Bit Settings

// 'C' source line config statements

// CONFIG1
#pragma config FOSC = INTOSC    // Oscillator Selection (INTOSC oscillator: I/O function on CLKIN pin)
#pragma config WDTE = OFF       // Watchdog Timer Enable (WDT disabled)
#pragma config PWRTE = OFF      // Power-up Timer Enable (PWRT disabled)
#pragma config MCLRE = OFF      // MCLR Pin Function Select (MCLR/VPP pin function is digital input)
#pragma config CP = OFF         // Flash Program Memory Code Protection (Program memory code protection is disabled)
#pragma config CPD = OFF        // Data Memory Code Protection (Data memory code protection is disabled)
#pragma config BOREN = OFF      // Brown-out Reset Enable (Brown-out Reset disabled)
#pragma config CLKOUTEN = OFF   // Clock Out Enable (CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin)
#pragma config IESO = ON        // Internal/External Switchover (Internal/External Switchover mode is enabled)
#pragma config FCMEN = OFF      // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is disabled)

// CONFIG2
#pragma config WRT = OFF        // Flash Memory Self-Write Protection (Write protection off)
#pragma config PLLEN = OFF      // PLL Enable (4x PLL disabled)
#pragma config STVREN = OFF     // Stack Overflow/Underflow Reset Enable (Stack Overflow or Underflow will not cause a Reset)
#pragma config BORV = LO        // Brown-out Reset Voltage Selection (Brown-out Reset Voltage (Vbor), low trip point selected.)
#pragma config LVP = OFF        // Low-Voltage Programming Enable (High-voltage on MCLR/VPP must be used for programming)

// #pragma config statements should precede project file includes.
// Use project enums instead of #define for ON and OFF.

#include <xc.h>

#define _XTAL_FREQ 8000000 //クロック動作周波数を8MHzとして__delay_msを使用する
//#define _XTAL_FREQ 32000000 //クロック動作周波数を8MHzとして__delay_msを使用する

#define DIG1 RA1
#define DIG2 RA0
#define DIG3 RA7
#define DIG4 RA6
#define colon RA3
#define SDA RA4
#define Speaker RA2
#define Switch RA5

unsigned short int temperature = 0;
unsigned short int humidity = 0;


Display7SEG(char num, unsigned short int dp);//引数はnum=(表示する数字・記号)，dp=(デジマルポイントの有無(0or1)))
Display7SEG_4DIG(unsigned short int number, char option);//引数はnum=表示する数字，オプションoptionはc(°C),p(%),n(無し)
TemperatureAndHumiditySensor();
Beep(unsigned short int num);

int main() {
    OSCCON = 0b01110100; //内部クロック8MHz
    ANSELA = 0b00000000; //ポートAをデジタルI/Oピンとして使う
    ANSELB = 0b00000000; //ポートBをデジタルI/Oピンとして使う
    TRISA = 0b11111111; //ポートAを出力に設定
    TRISB = 0b00000000; //ポートBを出力に設定
     __delay_ms(1500);//温湿度センサが起動するのを待つ
     Beep(300);//起動音
    
    while (1) {
        while(Switch == 0){
            //スイッチが押されるまで待機
        }
       
        Beep(100);//スイッチが押されたことを確認
        
        TemperatureAndHumiditySensor();//センサと通信
        
        //温度を表示--------------------------
        for(unsigned int i =0;i<500; i++){
            Display7SEG_4DIG(temperature,'c');//°C
        }
        //温度を表示--------------------------
        
        
        //湿度を表示--------------------------
        Beep(100);//湿度表示開始音
        for(unsigned int i =0;i<500; i++){    
            Display7SEG_4DIG(humidity, 'p');//%persent
        }
        //湿度を表示--------------------------
        
        
    }
    return 0;
}

Display7SEG_4DIG(unsigned short int number, char option) {
    unsigned short int DIG[4];
    unsigned short int temp;

    temp = number;
    DIG[3] = temp / 1000;

    temp = number;
    DIG[2] = (temp - 1000 * DIG[3]) / 100;

    temp = number;
    DIG[1] = (temp - 1000 * DIG[3] - 100 * DIG[2]) / 10;

    temp = number;
    DIG[0] = temp - 1000 * DIG[3] - 100 * DIG[2] - 10 * DIG[1];

    TRISB = 0b00000000;
    TRISA = 0b00000000;
    
    DIG1 = 0;
    DIG2 = 0;
    DIG3 = 0;
    DIG4 = 0;
    colon = 0;
    if(option == 'n'){
        Display7SEG(DIG[0],0);
    }else{
        Display7SEG(option,0);
    }
    DIG1 = 1; //1桁目を表示
    __delay_ms(1);

    DIG1 = 0;
    DIG2 = 0;
    DIG3 = 0;
    DIG4 = 0;
    colon = 0;
    Display7SEG(DIG[1],0);
    DIG2 = 1; //2桁目を表示
    __delay_ms(1);

    DIG1 = 0;
    DIG2 = 0;
    DIG3 = 0;
    DIG4 = 0;
    colon = 0;
    Display7SEG(DIG[2],1);
    DIG3 = 1; //3桁目を表示
    __delay_ms(1);

    DIG1 = 0;
    DIG2 = 0;
    DIG3 = 0;
    DIG4 = 0; //すべてのLEDを消灯
    colon = 0;
    Display7SEG(DIG[3],0);
    DIG4 = 1; //4桁目を表示
    __delay_ms(1);
    
    DIG1 = 0;
    DIG2 = 0;
    DIG3 = 0;
    DIG4 = 0; //すべてのLEDを消灯
    colon = 0;
    if(option != 'n'){
        Display7SEG('d',0);
    }
    colon = 1; //コロン，°表示
    __delay_ms(1);
    
    DIG1 = 0;
    DIG2 = 0;
    DIG3 = 0;
    DIG4 = 0;
    colon = 0;
}

Display7SEG(char num, unsigned short int dp) {
    unsigned short int dp_b;
    if(dp == 1){
        dp_b = 0b00001000;
    }else{
        dp_b = 0b00000000;
    }
    
    switch (num) {
        case 0:
            PORTB = 0b10110111 | dp_b;//0　正論理
            //PORTB = 0b01001000; //0　負論理
            break;

        case 1:
            PORTB = 0b00010100 | dp_b;//1
            //PORTB = 0b11101011; //1
            break;

        case 2:
            PORTB = 0b01110011 | dp_b;//2
            //PORTB = 0b10001100; //2
            break;

        case 3:
            PORTB = 0b01110110 | dp_b;//3
            //PORTB = 0b10001001; //3
            break;

        case 4:
            PORTB = 0b11010100 | dp_b;//4
            //PORTB = 0b00101011; //4
            break;

        case 5:
            PORTB = 0b11100110 | dp_b;//5
            //PORTB = 0b00011001; //5
            break;

        case 6:
            PORTB = 0b11100111 | dp_b;//6
            //PORTB = 0b00011000; //6
            break;

        case 7:
            PORTB = 0b00110100 | dp_b;//7
            //PORTB = 0b11001011; //7
            break;

        case 8:
            PORTB = 0b11110111 | dp_b;//8
            //PORTB = 0b00001000; //8
            break;

        case 9:
            PORTB = 0b11110110 | dp_b;//9
            //PORTB = 0b00001001; //9
            break;
            
        case 'c':
            PORTB = 0b10100011;//C
            break;
            
        case 'p':
            PORTB = 0b01011001;
            break;
        
        case 'd':
            PORTB = 0b00000100;
            break;

    }
}

TemperatureAndHumiditySensor(){
    unsigned int data[40]; 
    unsigned int c;    
        //picから温度センサーへ開始信号送信
        TRISA = 0b00000000;
        SDA = 0;
        __delay_ms(25); 
        
        SDA = 1;
        __delay_us(10);
        
        
        //情報受信開始 
        TRISA = 0b11111111;
        while(SDA != 0) //LOWになるまで待つ 
        { 
        } 
        while(SDA == 0) //Hiになるまで待つ 
        { 
        } 
        

        //温湿度情報受信開始 
        for(c=0 ; c <40 ; c++) { 
            while(SDA == 1) //LOWになるまで待つ(1の間はwhile文の中にいる) 
            { 
            } 
            while(SDA == 0) //Hiになるまで待つ (0の間はwhile文の中にいる) 
            { 
            }  
            
            __delay_us(40); 
            if(SDA == 1){ 
                data[c] = 1; 
            } 
            else{ 
                data[c] = 0; 
            } 
        }
        
        
        
        //温度湿度の計算
        humidity        = 0*data[0]  + 0*data[1] + 0*data[2] + 0*data[3] + 0*data[4] + 0*data[5] + 512*data[6] + 256*data[7] + 128*data[8] + 64*data[9] + 32*data[10] + 16*data[11] + 8*data[12] + 4*data[13] + 2*data[14] + data[15];
        temperature     = 0*data[16] + 0*data[17] +0*data[18] +0*data[19] +0*data[20] +0*data[21] +512*data[22] +256*data[23]+ 128*data[24]+ 64*data[25]+ 32*data[26] + 16*data[27] + 8*data[28] + 4*data[29] + 2*data[30] + data[31];
        humidity        = 10*humidity;
        temperature     = 10*temperature;
}       

Beep(unsigned short int num){
    TRISA = 0b11111011; //speakerを出力に設定
    for(unsigned int s=0; s<num; s++){
        Speaker = 1;
        __delay_ms(0.75);
        Speaker = 0;
        __delay_ms(0.75);
    }
}