HX711 51单片机代码

以下是HX711模块与51单片机的代码示例：

#include <reg52.h>
#include <intrins.h>

#define DOUT P3_5
#define SCK P3_6

typedef unsigned char u8;
typedef unsigned int u16;

sbit DOUT=P3^5;
sbit SCK=P3^6;

u8 code table[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};

void delay_ms(u16 ms)
{
    u16 i,j;
    for(i=0;i<ms;i++)
        for(j=110;j>0;j--);
}

void Write_Ds18b20(unsigned char dat)
{
    unsigned char i;
    for(i=0;i<8;i++)
    {
        SCK=0;
        _nop_();
        DOUT=dat&0x01;
        dat>>=1;
        SCK=1;
        _nop_();
        SCK=0;
        _nop_();
    }
}

unsigned long Read_Count(void)
{
    unsigned char i;
    unsigned long Count=0;
    DOUT=1;
    SCK=0;
    _nop_();
    while(DOUT);
    for(i=0;i<24;i++)
    {
        SCK=1;
        Count=Count<<1;
        _nop_();
        SCK=0;
        _nop_();
        if(DOUT)
            Count++;
    }
    SCK=1;
    Count=Count^0x800000;
    _nop_();
    SCK=0;
    _nop_();
    return(Count);
}

void main()
{
    u8 i;
    u8 j;
    u8 k;
    unsigned long Count;
    unsigned long Weight;
    u8 buffer[6];
    while(1)
    {
        Count=Read_Count();
        if(Count>=0x800000)
            Count=Count|0xff000000;
        Weight=Count/100;
        buffer[0]=table[Weight/1000];
        buffer[1]=table[Weight%1000/100];
        buffer[2]=table[Weight%100/10];
        buffer[3]=table[Weight%10];
        for(i=0;i<4;i++)
        {
            P2=0x00;
            for(j=0;j<8;j++)
            {
                P0=buffer[i];
                for(k=0;k<50;k++);
                P2|=0x01;
                P2=0x00;
            }
        }
        delay_ms(500);
    }
}

注意：这只是一个简单的示例代码，实际应用中可能需要进行更多的优化和修改。