單片機LCD1602時鐘+測溫程序

ID:848824 · 發(fā)表于 2021-2-5 12:12

         引腳定義
      //LCD1602 IO設(shè)置
   LCD1602_RS = P2^5;
   LCD1602_RW = P2^6;
LCD1602_EN = P2^7;

/DS1302 IO設(shè)置
sbit DS1302_RST = P1^2;    //實時時鐘復(fù)位線引腳
sbit DS1302_IO = P1^1;    //實時時鐘數(shù)據(jù)線引腳
sbit DS1302_CLK = P1^0;    //實時時鐘時鐘線引腳

//DS18B20 IO設(shè)置
sbit DS18B20_DQ = P1^3;

//按鍵 IO設(shè)置
sbit KEY1 = P3^2;
sbit KEY2 = P3^3;
sbit KEY3 = P3^4;
sbit KEY4 = P3^5;