用52单片机跟gy39加上lcd显示做一个光强度检测系统要求lcd上能显示湿度值跟光强度值给出代码

这是一个基于52单片机和GY39模块的光强度检测系统，可以在LCD上显示湿度值和光强度值。以下是代码：

#include <reg52.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define LCD_DATA P0
#define LCD_RS P2_0
#define LCD_RW P2_1
#define LCD_EN P2_2

sbit SDA = P3^4;
sbit SCL = P3^5;

unsigned char code InitData[]={0x38,0x0c,0x06,0x01,0x80};
unsigned char code LCDChar[]={"0123456789*#"};
unsigned char code LCDLine[] ={0x80,0xc0,0x90,0xd0};
unsigned char code LCDNum[][] = {
                           {"Humidity:"},
                           {"Intensity:"}
                           };
unsigned char Humidity[] = {"000 %"};
unsigned char Intensity[] = {"000 Lux"};
unsigned char buffer[16];

void Delay1ms(unsigned int time);
void IIC_Start();
void IIC_Stop();
void IIC_SendACK(bit ack);
bit IIC_RecvACK();
void IIC_SendByte(unsigned char dat);
unsigned char IIC_RecvByte();
void InitLCD();
void WriteCommand(unsigned char com);
void WriteData(unsigned char dat);
void WriteString(unsigned char line, unsigned char *str);
void WriteNumber(unsigned char line, unsigned char *str);

unsigned int humidity = 0;
unsigned int intensity = 0;

void main()
{
    unsigned char i;

    TMOD &= 0xf0;
    TMOD |= 0x01;
    TH0 = 0xfc;
    TL0 = 0x67;
    ET0 = 1;
    TR0 = 1;

    InitLCD();

    while(1)
    {
        IIC_Start();
        IIC_SendByte(0x88);
        IIC_SendByte(0x00);
        IIC_Stop();

        Delay1ms(500);

        IIC_Start();
        IIC_SendByte(0x89);
        humidity = (IIC_RecvByte() << 8) | IIC_RecvByte();
        IIC_SendACK(0);
        intensity = (IIC_RecvByte() << 8) | IIC_RecvByte();
        IIC_SendACK(0);
        IIC_Stop();

        sprintf(buffer, "%03d", humidity / 10);
        memcpy(Humidity, buffer, 3);
        WriteNumber(0, Humidity);

        sprintf(buffer, "%03d", intensity / 10);
        memcpy(Intensity, buffer, 3);
        WriteNumber(1, Intensity);

        Delay1ms(500);
    }
}

void Timer0() interrupt 1
{
    TH0 = 0xfc;
    TL0 = 0x67;
}

void Delay1ms(unsigned int time)
{
    unsigned int i, j;
    for(i=0; i<time; i++)
        for(j=0; j<110; j++);
}

void IIC_Start()
{
    SDA = 1;
    SCL = 1;
    Delay1ms(1);
    SDA = 0;
    Delay1ms(1);
    SCL = 0;
}

void IIC_Stop()
{
    SDA = 0;
    SCL = 1;
    Delay1ms(1);
    SDA = 1;
    Delay1ms(1);
}

void IIC_SendACK(bit ack)
{
    SDA = ack;
    SCL = 1;
    Delay1ms(1);
    SCL = 0;
    Delay1ms(1);
}

bit IIC_RecvACK()
{
    bit ack;
    SCL = 1;
    Delay1ms(1);
    ack = SDA;
    SCL = 0;
    Delay1ms(1);
    return ack;
}

void IIC_SendByte(unsigned char dat)
{
    unsigned char i;
    for(i=0; i<8; i++)
    {
        SDA = dat & 0x80;
        SCL = 1;
        Delay1ms(1);
        SCL = 0;
        dat <<= 1;
    }
    IIC_RecvACK();
}

unsigned char IIC_RecvByte()
{
    unsigned char i, dat = 0;
    SDA = 1;
    for(i=0; i<8; i++)
    {
        SCL = 1;
        Delay1ms(1);
        dat <<= 1;
        dat |= SDA;
        SCL = 0;
        Delay1ms(1);
    }
    return dat;
}

void InitLCD()
{
    unsigned char i;
    for(i=0; i<5; i++)
        WriteCommand(InitData[i]);
}

void WriteCommand(unsigned char com)
{
    LCD_RS = 0;
    LCD_DATA = com;
    LCD_EN = 1;
    Delay1ms(1);
    LCD_EN = 0;
}

void WriteData(unsigned char dat)
{
    LCD_RS = 1;
    LCD_DATA = dat;
    LCD_EN = 1;
    Delay1ms(1);
    LCD_EN = 0;
}

void WriteString(unsigned char line, unsigned char *str)
{
    WriteCommand(LCDLine[line]);
    while(*str != '\0')
        WriteData(*str++);
}

void WriteNumber(unsigned char line, unsigned char *str)
{
    unsigned char i;
    WriteCommand(LCDLine[line]);
    for(i=0; i<10; i++)
        WriteData(LCDChar[str[i] - '0']);
    WriteData(' ');
    WriteString(line, LCDNum[line]);
}

请注意，此代码未经过实际测试，可能会存在一些错误或问题。您需要根据实际情况进行调整和修改。此外，该代码仅供参考，您需要对其进行深入理解，并根据自己的需求进行修改。