長(zhǎng)通杯智能電動(dòng)小車報(bào)告

關(guān)鍵字：智能控制紅外線收發(fā)尋跡行駛趨光行駛溫控啟動(dòng)AT89S51單片機(jī)來作為整機(jī)的控制單元。紅外線探頭采用市面上通用的 圖的電機(jī)驅(qū)動(dòng)L293D，該是利用TTL電平進(jìn)行控制，對(duì)電機(jī)的操作方便，通過改變方案一：采用分離元件搭接溫度系統(tǒng)，電路結(jié)構(gòu)復(fù)雜，體積大，測(cè)量誤差較大。電機(jī)模塊：采用L293D驅(qū)動(dòng)電路2HHLHLHHLXXL293D可直接的對(duì)電機(jī)進(jìn)行控制，無(wú)須電路。通過單片機(jī)的I/O輸入改變控型—光敏電阻的工作原理是基于內(nèi)光電效應(yīng)，當(dāng)光敏電阻受到光照時(shí)，價(jià)帶的電子吸收的電流隨光照增大而增大。入射光，電子-空穴對(duì)逐漸復(fù)合，電阻也逐漸恢復(fù)原值，電I/O口上，單片機(jī)對(duì)信號(hào)做出處理后對(duì)電機(jī)做出相應(yīng)的控制。 ORG0000HLJMPMAINORG000BH

7RRCARRCARRCA8高8位FLAG1EQU38H;DS18B20a_bitequ20h;數(shù)碼管個(gè)位數(shù)存放內(nèi)存位置b_bitequ21h數(shù)碼管十位數(shù)存放內(nèi)存位置LBITP3.5RBITP3.6MBITtdata30h;IO_DATAbitP0.1數(shù)據(jù)傳送總線SCLKbitP0.2;時(shí)鐘控制總線MOVA,29HRRCA

CPLP1.0;MOVR1,#3DJNZR0,$DJNZMOVR0,#25HDJNZR0,TSR2LJMPTSR4延時(shí)SETBFLAG1;置標(biāo)志位,表示DS1820存在CLRP1.7;DS18B20P1.7LEDLJMPTSR5CLRFLAG1;清標(biāo)志位,DS1820不存CLRP1.1DJNZR0,TSR6;SETBP3.2;JBFLAG1,TSS2RET;DS1820是否存在? 已經(jīng)被檢測(cè)MOVA,#0CCH;ROMMOVA,#44H;間,AD轉(zhuǎn)換結(jié)束,12750微秒LCALLDISYMOVA,#0CCH;跳過ROM匹配LCALLWRITE_1820MOVA,#0BEH;LCALLREAD_18200;將讀出的溫度數(shù)據(jù)保存到35H/36H

CLRP3.2MOVR3,#5R3,$RRCAMOVP3.2,CR3,$SETBP3.2NOPSETBP3.2;讀DS18B20的程序,從DS18B20中讀出兩MOVR4,#2;將溫度高位和低位從 低位存 CLRCSETBP3.2SETBP3.2MOVC,P3.2MOVR3,#21DJNZMOV@R1,ADECR1disy:mova,29H;將29H中的十六進(jìn)制數(shù)轉(zhuǎn)換成10進(jìn)制movb,#1010進(jìn)制/10=10divmovb_bit,aamova_bit,bmovDPTR,#numtab指定查表啟始地址movR0,#4dpl1:movr1,#2501000dplop:mova,a_bitmovp1,a7clrp3.0;開個(gè)位顯示acalld1ms1mssetbp3.0mova,b_bit取十位數(shù)CJNEA,#6HBULJMPMAIN1BUMOVCA,@A+DPTR;7movp1,a7clrp3.1;開十位顯示acalld1ms1mssetbp3.1djnzr1,dplop;100次沒完循環(huán)djnzr0,dpl14100次沒完循環(huán);1MSD1MS:MOVR7,#80DJNZR7,$

MOVP1,#0FFH MOV0A0H,#0HMOVTMOD,#1HMOVTH0,#3CHMOVTL0,#0B0HSETBEASETBET0SETBTR0MOVR0,#0HMOV35H,#0HMOV36H,#1HMOV41H,#0HMOV42H,#0HMOV43H,#0HMOV44H,#0HMOV45H,#0HMOV46H,#3HSETB20H.0CLRP1.4LCALLSENT MOV40H,#12540H,$MOVJBM,DYYJBL,DYYJNBR,FA MOVR7,#88HR7,$DJNZA,P3ANLAJBP1.4,PDJBDJNZINC JBJBJBJBJB JNBDJNZMOVP2DJNZDJNZDJNZJBJBDECJB JBJBJB MOVP2 DJNZDJNZMOVP2JB JBDJNZDJNZJBDECJBMOVP2, DJNZMOVP2,#0HDJNZDJNZJB JBMOVR2DJNZ DJNZDJNZINCCJNE JNB MOVP2 DJNZ JB MOVP2 DJNZ JB

SETBSCLK; t,S_Byte0;

MOV43H,#0HINC44H

MOV44H,#0H INC INC41HMOV41H,