DHT11温湿度传感器驱动程序10页.docx

/* 本程序适用于DHT11温湿度传感器由于DHT11使用拉高总线的不同时常来代替0和1 0 28US 1 70us 同时数据送入1602a显示 */#include#include#include#define Data P0/数据端口sbit RS = P24; /Pin4sbit RW = P25; /Pin5sbit E = P26; /Pin6sbit dat=P12;unsigned int shidu_h=0,shidu_l=0,wendu_h=0,wendu_l=0,i,xiaoyan=0;/定义湿度 温度变量unsigned char code tab=0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39;/定义1602a显示0-9unsigned int a16=0 ;void delayus(unsigned char i) /延时2uswhile(-i);