【導讀】要在點陣漢字液晶屏上實時的顯示。次數(shù)間隔為4小時。進入低溫時，澆灌時間為0分0秒，閥關閉。水閥開關蜂鳴器繼電器液晶顯示器電源電線；1．任務和要概述，功能，劉路.顯示器與單片機的連接采用模擬接口方式。蜂鳴器：利用外部中斷觸發(fā)定時器t0控制音調(diào)高低T1. 電路集成到了一起，外形如同一只三極管。常方便地構(gòu)成多路溫度測量系統(tǒng)。DS18B20的測溫范圍為-55度~125度，可完全滿足要求。其引腳圖如圖1-4所。在數(shù)據(jù)總線供電方式可給傳感器提供電源。若采用數(shù)據(jù)總路線供電方式，VDD應接地，這樣可省一根線，但測濁。些端口可以直接連接，無需另外的接芯片。P0～P3既可以按字節(jié)輸入或輸出，也可以按。位進行輸入或輸出，共32條口線，其控制十分靈活方便。各個端口的結(jié)構(gòu)功能有所不。在自動澆灌系統(tǒng)的設計中主要用到了P0、P1、P3這3個口。程序存儲器、外部數(shù)據(jù)存儲器或I/O口時，作為數(shù)據(jù)總線和低8位地址總線。高電平會被強制拉成低電平。

　　

【正文】 ,4*/ //4 0x20,0x30,0x2C,0xA3,0x60,0x10,0x84,0xC4, 0xA4,0x9D,0x86,0x84,0xA4,0xC4,0x84,0x00, 0x20,0x22,0x23,0x12,0x12,0x92,0x40,0x30, 0x0F,0x00,0x00,0x3F,0x40,0x41,0x70,0x00,/*統(tǒng) ,5*/ //5 0x04,0x04,0x04,0x04,0x74,0x54,0x55,0x56, 0x54,0x54,0x74,0x04,0x04,0x04,0x04,0x00, 0x00,0xFF,0x01,0x01,0x3D,0x25,0x25,0x25, 0x25,0x25,0x3D,0x41,0x81,0x7F,0x00,0x00,/*高 ,6*/ //6 0x10,0x21,0x86,0x70,0x00,0x7E,0x4A,0x4A, 0x4A,0x4A,0x4A,0x7E,0x00,0x00,0x00,0x00, 0x02,0xFE,0x01,0x40,0x7F,0x41,0x41,0x7F, 0x41,0x41,0x7F,0x41,0x41,0x7F,0x40,0x00,/*溫 ,7*/ //7 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x36,0x36,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*： ,8*/ //8 0x20,0x18,0x08,0x09,0xEE,0xAA,0xA8,0xAF, 0xA8,0xA8,0xEC,0x0B,0x2A,0x18,0x08,0x00, 0x00,0x00,0x3E,0x02,0x02,0x02,0x02,0xFF, 0x02,0x02,0x12,0x22,0x1E,0x00,0x00,0x00,/*常 ,9*/ //9 0x10,0x21,0x86,0x70,0x00,0x7E,0x4A,0x4A, 0x4A,0x4A,0x4A,0x7E,0x00,0x00,0x00,0x00, 0x02,0xFE,0x01,0x40,0x7F,0x41,0x41,0x7F, 0x41,0x41,0x7F,0x41,0x41,0x7F,0x40,0x00,/*溫 ,10*///10 0x40,0x20,0xF0,0x0C,0x07,0x02,0xFC,0x44, 0x44,0x42,0xFE,0x43,0x43,0x42,0x40,0x00, 0x00,0x00,0x7F,0x00,0x00,0x00,0x7F,0x20, 0x10,0x28,0x43,0x0C,0x10,0x20,0x78,0x00,/*低 ,11*///11 0x10,0x21,0x86,0x70,0x00,0x7E,0x4A,0x4A, 0x4A,0x4A,0x4A,0x7E,0x00,0x00,0x00,0x00, 0x02,0xFE,0x01,0x40,0x7F,0x41,0x41,0x7F, 0x41,0x41,0x7F,0x41,0x41,0x7F,0x40,0x00,/*溫 ,12*///12 0x82,0xE2,0x5E,0x42,0xC2,0x0A,0x08,0xC9, 0x3E,0x0A,0x08,0x8C,0x7A,0x09,0x08,0x00, 0x00,0x7F,0x10,0x10,0x1F,0x32,0x2B,0x26, 0x2A,0x71,0x32,0x2B,0x26,0x2A,0x71,0x00,/*磁 ,14*/ //14 0x00,0x00,0xF8,0x81,0x46,0xE0,0x58,0x42, 0xFA,0x2A,0x32,0xA2,0x02,0xFE,0x00,0x00, 0x00,0x00,0xFF,0x00,0x00,0x3F,0x04,0x04, 0x03,0x0E,0x11,0x3C,0x80,0xFF,0x00,0x00,/*閥 ,15*/ //15 0x10,0x60,0x01,0xC6,0x00,0x80,0x84,0x44, 0x5F,0x24,0x64,0x94,0x84,0xE4,0x00,0x00, 0x04,0xFC,0x03,0x00,0x42,0x42,0x32,0x0E, 0x02,0x02,0x3E,0x42,0x42,0x42,0x78,0x00,/*澆 ,18*/ //18 0x08,0x31,0x82,0x78,0x02,0x3A,0xEA,0xAF, 0xBA,0xC2,0xBA,0xAF,0xAA,0xBA,0x02,0x00, 0x04,0x04,0x7F,0x00,0x02,0x01,0x7F,0x2A, 0x2A,0x2A,0x3F,0x2A,0x2A,0x2A,0x20,0x00,/*灌 ,19*/ //19 0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90, 0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00, 0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00, 0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,/*時 ,20*/ //20 0x00,0xF8,0x01,0x06,0x00,0xF0,0x92,0x92, 0x92,0x92,0xF2,0x02,0x02,0xFE,0x00,0x00, 0x00,0xFF,0x00,0x00,0x00,0x07,0x04,0x04, 0x04,0x04,0x07,0x40,0x80,0x7F,0x00,0x00,/*間 ,21*/ //21 0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90, 0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00, 0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00, 0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,/*時 ,22*/ //22 0x80,0x40,0x20,0x98,0x87,0x82,0x80,0x80, 0x83,0x84,0x98,0x30,0x60,0xC0,0x40,0x00, 0x00,0x80,0x40,0x20,0x10,0x0F,0x00,0x00, 0x20,0x40,0x3F,0x00,0x00,0x00,0x00,0x00,/*分 ,23*/ //23 0x12,0x12,0xD2,0xFE,0x91,0x11,0xC0,0x38, 0x10,0x00,0xFF,0x00,0x08,0x10,0x60,0x00, 0x04,0x03,0x00,0xFF,0x00,0x83,0x80,0x40, 0x40,0x20,0x23,0x10,0x08,0x04,0x03,0x00,/*秒 ,24*/ //24 0x40,0x42,0x42,0x42,0x42,0xFE,0x42,0x42, 0x42,0x42,0xFE,0x42,0x42,0x42,0x42,0x00, 0x00,0x40,0x20,0x10,0x0C,0x03,0x00,0x00, 0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00,/*開 ,25*/ //25 0x00,0x10,0x10,0x10,0x11,0x1E,0x14,0xF0, 0x10,0x18,0x17,0x12,0x18,0x10,0x00,0x00, 0x01,0x81,0x41,0x21,0x11,0x09,0x05,0x03, 0x05,0x09,0x31,0x61,0xC1,0x41,0x01,0x00,/*關 ,26*/ 0x00,0x00,0xFC,0x04,0x24,0x24,0xFC,0xA5, 0xA6,0xA4,0xFC,0x24,0x24,0x24,0x04,0x00, 0x80,0x60,0x1F,0x80,0x80,0x42,0x46,0x2A, 0x12,0x12,0x2A,0x26,0x42,0xC0,0x40,0x00,/*度 ,27*/ 0x00,0x02,0x1C,0xC0,0x30,0x4C,0x30,0x0F, 0x08,0xF8,0x08,0x08,0x28,0x18,0x08,0x00, 0x02,0x5E,0x43,0x20,0x20,0x10,0x08,0x04, 0x03,0x01,0x06,0x08,0x30,0x60,0x20,0x00,/*次 ,0*/ 0x10,0x92,0x54,0x38,0xFF,0x38,0x54,0x52, 0x80,0xF0,0x1F,0x12,0x10,0xF0,0x10,0x00, 0x42,0x42,0x2A,0x2E,0x13,0x1A,0x26,0x02, 0x40,0x20,0x13