基于單片機(jī)+L298智能小車設(shè)計(jì)，含Proteus仿真和源程序

ID:410126 · 發(fā)表于 2018-11-16 22:04

說(shuō)明小車運(yùn)動(dòng)通過(guò)獨(dú)立按鍵控制，通過(guò)按鍵調(diào)節(jié)不同車輪的速度，從而實(shí)現(xiàn)左轉(zhuǎn)或右轉(zhuǎn),L298驅(qū)動(dòng)電機(jī)

仿真原理圖如下（proteus仿真工程文件可到本帖附件中下載）

#include <reg51.h>
#define uchar unsigned char
sbit IN1       =       P2^0;
sbit IN2       =       P2^1;
sbit IN3       =       P2^2;
sbit IN4       =       P2^3;
sbit ENA       =       P2^4;
sbit ENB       =       P2^5;
sbit LeftUp                = P1^0;
sbit LeftDown  = P1^1;
sbit RightUp = P1^2;
sbit RightDown = P1^3;
//**×óóòÂÖ×óËù¶èμ÷½ú±äá¿
uchar numL,numR;
//***********************
void init_time()
{
      TMOD=0X01;
      TH0=(65536-500)/256;
      TL0=(65536-500)%256;
      EA=1;
      ET0=1;
      TR0=1;
}
void time0() interrupt 1 using 1
{
      static uchar num;
      num++;
      if(num==numR) ENB=~ENB;
      if(num==numL)       ENA=~ENA;
      if(num==100){ENA=~ENA;ENB=~ENB;num=0;}
      TH0=(65536-500)/256;
      TL0=(65536-500)%256;
}
void main()
{
      numL=70;numR=20;
      ENA=ENB=1;
      IN1=IN3=1;IN2=IN4=0;
  init_time();
  while(1)
      {
            if(!LeftUp)             {       while(!LeftUp);             numL+=5;
                                                                              if(numL>100)numL=0;}
            if(!LeftDown)       {       while(!LeftDown);       numL-=5;
                                                                              if(numL>100)numL=0;}
            if(!RightUp)       {       while(!RightUp);       numR+=5;
                                                                              if(numR>100)numR=0;}
            if(!RightDown){       while(!RightDown);numR-=5;
                                                                              if(numR>100)numR=0;}
      }
}

全部資料51hei下載地址：

控制小車的運(yùn)動(dòng).zip (124.18 KB, 下載次數(shù): 218)