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基于51單片機的溫度控制器

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圖片為溫度控制電路圖。溫度到達上限時led燈亮，并停止對RT的加熱，溫度達到下限時led燈滅并開始對RT進行加熱。A1和A2為uA741運算放大器。引腳號在圖上已經(jīng)標出。再給你一個單片機采集DS18B20溫度的程序，用四位數(shù)碼管顯示的。你把DS18B20接在RT附近就可以測試出RT的溫度，調(diào)節(jié)圖中的滑動變阻器可改變溫度的上下限。這樣就能做到溫度控制了。 //安裝目錄下的EXE文件打開后可在電腦上顯示當前溫度值 #include? #define?uchar?unsigned?char #define?uint?unsigned?int sbit?DS=P1^0;???????????//define?interface uint?temp;?????????????//?variable?of?temperature uchar?flag1;????????????//?sign?of?the?result?positive?or?negative //sbit?dula=P2^6; //sbit?wela=P2^7; //unsigned?char?code?table2[]={0x3f,0x30,0x5b,0x4f,0x66,0x6d,0x7d, //???????????????????????0x07,0x7f,0x67/*,0x77,0x7c,0x39,0x5e,0x79,0x71*/}; //unsigned?char?code?table1[]={0xbf,0xb0,0xdb,0xcf,0xe6,0xed,0xfd, //????????????????????????0x87,0xff,0xe7};?? //unsigned?char?code?table2[]={0x40,0x5e,0x24,0x21,0x13,0x09,0x08, ??//??????????????????????0x63,0x00,0x03/*,0x77,0x7c,0x39,0x5e,0x79,0x71*/}; //unsigned?char?code?table1[]={0xc0,0xde,0xa4,0xa1,0x93,0x89,0x88, ?//???????????????????????0xe7,0x8f,0x87}; unsigned?char?code?table5[]={0x77,0x22,: 回答者：網(wǎng)友

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