目录
一、主要功能
二、硬件资源
三、程序编程
四、实现现象
一、主要功能
** 基于AT89C51,L298N驱动两个电机,因为是平台,最后用两个电机驱动,然后第一个按键控制所有电机停止,第二个按键按下,电机顺时针转动,第三个按键按下,电机逆时针转动。然后加入pwm调速,分为高速和低速,并且LCD1602显示屏显示当前的平台状态,比如一开始所有电机是停止的,电机顺时针转动,LCD1602显示平台前翻,逆时针转动显示平台后翻,如果按第一个按键,即所有电机停止转动,则LCD1602显示平台静止。**
仿真图:
编辑原理图:
编辑
二、硬件资源
基于KEIL5编写C++代码,PROTEUS8.15进行仿真,全部资源在页尾,提供安装包。
本系统包含51单片机最小系统、LCD1602显示模块、L298N翻转模块、按键模块。
三、程序编程
#include <REGX52.H>
#include<intrins.h>
#include<stdio.h>
#include "Delay.h"
#include "LCD1602.h"
#define uchar unsigned char
#define uint unsigned int
typedef unsigned char u8;
typedef unsigned int u16;
typedef unsigned char uint8;
typedef unsigned int uint16;
typedef unsigned long uint32;/*引脚定义*/
sbit Motor1_IN1 = P3^3; //电机IN1口
sbit Motor1_IN2 = P3^4;
sbit Motor1_EN = P3^2; //电机使能端1
sbit key1 = P1^4; //按键定义
sbit key2 = P1^5;
sbit key3 = P1^6;
sbit key4 = P2^4;
sbit key5 = P2^5;/*变量定义*/
uchar count = 0; //定时中断次数
uchar count1 = 0;
uchar a = 0; //标志位
uchar flag;/*函数定义*/
void anjiansm();void Timer0_Init(void) //200微秒@11.0592MHz
{//AUXR &= 0x7F; //定时器时钟12T模式TMOD &= 0xF0; //设置定时器模式TMOD |= 0x01; //设置定时器模式TL0 = 0x48; //设置定时初值TH0 = 0xFF; //设置定时初值TF0 = 0; //清除TF0标志TR0 = 1; //定时器0开始计时ET0 = 0;EA = 0;
}void Car_RightMove(uchar speed) //小车右转前进
{uchar Car_Speed = speed;count++; if(count <= Car_Speed){Motor1_IN1 = 1;}else{Motor1_IN1 = 0;}if(count >= 100){count = 0;}
}void Car_LeftMove(uchar speed) //小车左转前进
{uchar Car_Speed = speed;count1++; if(count1 <= Car_Speed){Motor1_IN2 = 1;}else{Motor1_IN2 = 0;}if(count1 >= 100){count1 = 0;}
}void Timer0_isr(void) interrupt 1
{TL0 = 0x48; //设置定时初值TH0 = 0xFF; //设置定时初值switch(a){case 1:Car_RightMove(50);break; //小车右转低速前进case 2:Car_RightMove(100);break; //小车右转高速前进case 3:Car_LeftMove(50);break; //小车左转低速前进case 4:Car_LeftMove(100);break; //小车左转高速前进default:break;}
}void main() //主函数
{ Timer0_Init(); //定时器初始化LCD_Init(); //显示屏初始化Motor1_EN = 0; //停止转动Motor1_IN1 = 0;Motor1_IN2 = 0;LCD_ShowString(1,1," Ping Tai ");//显示平台LCD_ShowString(2,1," LEVEL ");//显示LEVELwhile(1){anjiansm(); //按键扫描 }
}void anjiansm() //按键扫描
{if(key1 == 0){Delay(100);{if(key1 == 0){ET0 = 0;EA = 0;Motor1_EN = 0; //停止转动Motor1_IN1 = 0;Motor1_IN2 = 0;LCD_ShowString(2,1," LEVEL ");//显示LEVEL}}}if(key2 == 0){Delay(100);{if(key2 == 0){ET0 = 1;EA = 1;Motor1_EN = 1; //顺时针转动Motor1_IN1 = 1;Motor1_IN2 = 0;a = 2;flag = 0;LCD_ShowString(2,1," Qian Fan ");//显示qianfan}}}if(key3 == 0){Delay(100);{if(key3 == 0){ET0 = 1;EA = 1;Motor1_EN = 1; //逆时针转动Motor1_IN1 = 0;Motor1_IN2 = 1;a = 4;flag = 1;LCD_ShowString(2,1," Hou Fan ");//显示qianfan}}}if(key4 == 0) //低速按钮{Delay(100);{if(key4 == 0){ET0 = 1;EA = 1;if(flag == 0){a = 1;}else{a= 3;}}}}if(key5 == 0) //高速按钮{Delay(100);{if(key5 == 0){ET0 = 1;EA = 1;if(flag == 0){a = 2;}else{a= 4;}}}}}
四、实现现象
具体动态效果看B站演示视频:
基于51单片机的翻转平台和PWM调速_哔哩哔哩_bilibili
全部资料(源程序、仿真文件、安装包、原理图、演示视频):
链接:https://pan.baidu.com/s/1rpwPLw9No9toaUq-Tp2kIA
提取码:qmjn
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