ds18b20.h

DS18B20温度采集然后红外发射出去,接收板接收红外并LCD显示接收的数据信息,有完整的发射接收程序

#include <reg51.h>

#define uchar unsigned char
#define uint  unsigned int

#ifdef  EXTERN_DS18B20
extern void Singlewire_Delay( int n ); 
extern bit Singlewire_Reset( void );
extern void Write_Bit( char bitval );
extern bit  Read_Bit( void );
extern void Write_Byte( char val );
extern uchar Read_Byte( void);
extern uchar Read_Temperature(void);
extern uchar temp_lsb,temp_msb;
#else
 void Singlewire_Delay( int n ); 
 bit Singlewire_Reset( void );
 void Write_Bit( char bitval );
 bit  Read_Bit( void );
 void Write_Byte( char val );
 uchar Read_Byte( void);
uchar Read_Temperature(void);
uchar temp_lsb,temp_msb;
#endif


#define FALSE 0
#define TRUE  1

sbit DQ =P3^5;                // 定义DQ引脚为P3.5