ESP8266 AT指令开发篇（三）

其他 2018-10-30 18:11:29 阅读次数: 0
版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/Dream_cc/article/details/54813253

通过51单片机、Arduino等实现AT指令配置8266模块，主要是通过串口通信实现的，博主学校的时候用的是51单片机给8266配置，arduino等原理相同，但是通过这种方法配置8266不是很稳定，会出现莫名重启等错误，也有可能是我外围电路没有去设计的原因。

本次主要涉及到的AT指令如下

//ATE0  关闭回显
uchar code closeBack[6]={0x41,0x54,0x45,0x30,0x0D,0x0A};

//AT+UART=9600,0,0,0  设置UART串口模式
uchar code setUART[20]={0x41,0x54,0x2B,0x55,0x41,0x52,0x54,0x3D,0x39,0x36,0x30,0x30,0x2C,0x30,0x2C,0x30,0x2C,0x30,0x0D,0x0A};

//AT+CWMODE=1  设置成Station模式
uchar code setStationMode[13]={0x41,0x54,0x2B,0x43,0x57,0x4D,0x4F,0x44,0x45,0x3D,0x31,0x0D,0x0A};

//AT+CWJAP="ccc","455455455"  连接WIFI
uchar code linkWifi[28]={0x41,0x54,0x2B,0x43,0x57,0x4A,0x41,0x50,0x3D,0x22,0x63,0x63,0x63,0x22,0x2C,0x22,0x34,0x35,0x35,0x34,0x35,0x35,0x34,0x35,0x35,0x22,0x0D,0x0A};

//AT+CIPMUX=0  设置单路连接模式
uchar code setSingleLinkMode[13]={0x41,0x54,0x2B,0x43,0x49,0x50,0x4D,0x55,0x58,0x3D,0x30,0x0D,0x0A};

//AT+RST  重启
uchar code RST[8]={0x41,0x54,0x2B,0x52,0x53,0x54,0x0D,0x0A};

//AT+CIPSTART="TCP","192.168.199.134",8080  连接TCP服务器
uchar code linkTCPServe[42]={0x41,0x54,0x2B,0x43,0x49,0x50,0x53,0x54,0x41,0x52,0x54,0x3D,0x22,0x54,0x43,0x50,0x22,0x2C,0x22,0x31,0x39,0x32,0x2E,0x31,0x36,0x38,0x2E,0x31,0x39,0x39,0x2E,0x31,0x33,0x34,0x22,0x2C,0x38,0x30,0x38,0x30,0x0D,0x0A};

//AT+CIPSEND=  发送数据
uchar code sendDate[11]={0x41,0x54,0x2B,0x43,0x49,0x50,0x53,0x45,0x4E,0x44,0x3D};


当然你也可以使用如下方式表示变量

//ATE0  关闭回显
uchar code closeBack[]="ATE0\r\n";

//AT+UART=9600,0,0,0  设置UART串口模式
uchar code setUART[]="AT+UART=9600,0,0,0\r\n";

//AT+CWMODE=1  设置成Station模式
uchar code setStationMode[]="AT+CWMODE=1\r\n";

//AT+CWJAP="ccc","455455455"  连接WIFI
uchar code linkWifi[]="AT+CWJAP=\"ccc\",\"455455455\"\r\n";

//AT+CIPMUX=0  设置单路连接模式
uchar code setSingleLinkMode[]="AT+CIPMUX=0";

//AT+RST  重启
uchar code RST[]="AT+RST";

//AT+CIPSTART="TCP","192.168.199.134",8080  连接TCP服务器
uchar code linkTCPServe[]="AT+CIPSTART=\"TCP\",\"192.168.199.134\",8080";

//AT+CIPSEND=  发送数据
uchar code sendDate[]="AT+CIPSEND=";
以上第一种方法要写个循环一个一个发，而第二种比较方便，可以直接使用printf()函数发送。

所用主要是模块作为station连接tcp服务器的一个过程，下面附上我学习时候写的代码，可能有比较多附加的东西，方便我当时调试执行到哪部了。

#include <reg52.h>
#include <stdio.h>

#define uchar unsigned char
#define uint unsigned int

/******************本地变量声明******************/
uchar Buffer;  //接收串口数据

/******************端口引脚定义******************/
sbit K1=P3^4;  //正转按键
sbit K2=P3^5;  //反转按键
sbit K3=P3^6;  //停止按键
sbit LED1=P1^0;  //正转灯
sbit LED2=P1^1;  //反转灯
sbit LED3=P1^2;  //停止灯
sbit LED4=P1^3;  //连接服务器成功
sbit sig=P2^1;
sbit led=P2^0;

/******************电机相序表定义******************/
uchar code CW[8]={0x01,0x03,0x02,0x06,0x04,0x0c,0x08,0x09};    //电机正时钟旋转相序表
uchar code CCW[8]={0x09,0x08,0x0c,0x04,0x06,0x02,0x03,0x01};   //电机逆时钟旋转相序表

/**********************ESP8266指令定义***********************
//ATE0  关闭回显
uchar code closeBack[6]={0x41,0x54,0x45,0x30,0x0D,0x0A};

//AT+UART=9600,0,0,0  设置UART串口模式
uchar code setUART[20]={0x41,0x54,0x2B,0x55,0x41,0x52,0x54,0x3D,0x39,0x36,0x30,0x30,0x2C,0x30,0x2C,0x30,0x2C,0x30,0x0D,0x0A};

//AT+CWMODE=1  设置成Station模式
uchar code setStationMode[13]={0x41,0x54,0x2B,0x43,0x57,0x4D,0x4F,0x44,0x45,0x3D,0x31,0x0D,0x0A};

//AT+CWJAP="ccc","455455455"  连接WIFI
uchar code linkWifi[28]={0x41,0x54,0x2B,0x43,0x57,0x4A,0x41,0x50,0x3D,0x22,0x63,0x63,0x63,0x22,0x2C,0x22,0x34,0x35,0x35,0x34,0x35,0x35,0x34,0x35,0x35,0x22,0x0D,0x0A};

//AT+CIPMUX=0  设置单路连接模式
uchar code setSingleLinkMode[13]={0x41,0x54,0x2B,0x43,0x49,0x50,0x4D,0x55,0x58,0x3D,0x30,0x0D,0x0A};

//AT+RST  重启
uchar code RST[8]={0x41,0x54,0x2B,0x52,0x53,0x54,0x0D,0x0A};

//AT+CIPSTART="TCP","192.168.199.134",8080  连接TCP服务器
uchar code linkTCPServe[42]={0x41,0x54,0x2B,0x43,0x49,0x50,0x53,0x54,0x41,0x52,0x54,0x3D,0x22,0x54,0x43,0x50,0x22,0x2C,0x22,0x31,0x39,0x32,0x2E,0x31,0x36,0x38,0x2E,0x31,0x39,0x39,0x2E,0x31,0x33,0x34,0x22,0x2C,0x38,0x30,0x38,0x30,0x0D,0x0A};

//AT+CIPSEND=  发送数据
uchar code sendDate[11]={0x41,0x54,0x2B,0x43,0x49,0x50,0x53,0x45,0x4E,0x44,0x3D};
********************ESP8266指令定义结束*********************/

/**********************ESP8266 AT指令定义***********************
//ATE0  关闭回显
uchar code closeBack[]="ATE0\r\n";

//AT+UART=9600,0,0,0  设置UART串口模式
uchar code setUART[]="AT+UART=9600,0,0,0\r\n";

//AT+CWMODE=1  设置成Station模式
uchar code setStationMode[]="AT+CWMODE=1\r\n";

//AT+CWJAP="ccc","455455455"  连接WIFI
uchar code linkWifi[]="AT+CWJAP=\"ccc\",\"455455455\"\r\n";

//AT+CIPMUX=0  设置单路连接模式
uchar code setSingleLinkMode[]="AT+CIPMUX=0";

//AT+RST  重启
uchar code RST[]="AT+RST";

//AT+CIPSTART="TCP","192.168.199.134",8080  连接TCP服务器
uchar code linkTCPServe[]="AT+CIPSTART=\"TCP\",\"192.168.199.134\",8080";

//AT+CIPSEND=  发送数据
uchar code sendDate[]="AT+CIPSEND=";
/********************ESP8266 AT指令定义结束*********************/


/******************延时函数******************/	
void delay(uint x)  	   
{
	uint i,j;
	for(i=0;i<x;i++)
		for(j=0;j<110;j++);
}
/******************延时函数完毕******************/

/******************电机转动函数*******************/
int CW_motor()  //内部齿轮正转一圈
{
	uint i,j,flag=0;  //flag为停止标识  1为停止  初始为0
	for(i=0;i<8;i++)
	{
		for(j=0;j<8;j++)
		{
			if(K3==0||Buffer=='t')
			{
				flag=1;
				break;			
			}
			P1=CW[j];
			delay(10);  //延时
		}
		if(flag==1)
			break;
	}
	if(flag)
		return 0;
	else
		return 1;
}
int CCW_motor()  //内部齿轮反转一圈
{
	uint i,j,flag=0;  //flag为停止标识  1为停止  初始为0
	for(i=0;i<8;i++)
	{		
		for(j=0;j<8;j++)
		{
			if(K3==0||Buffer=='t')
			{
				flag=1;
				break;
			}
			P1=CCW[j];
			delay(10);  //延时
		}
		if(flag==1)
			break;
	}
	if(flag)
		return 0;
	else
		return 1;
}
/******************电机转动函数完毕******************/

/******************串口初始化******************/
void INIT() 
{
	 TMOD = 0x20;  //设置定时器1工作在模式2
	 PCON = 0x00;
	 SCON = 0x50;			
	 TL1 = 0xfd;
	 TH1 = 0xfd;  //设置波特率 9600
	 TR1 = 1;     //启动定时器1
	 ES = 1;      //开串口中断
	 EA = 1;      //开总中断
	 TI=1;        //printf()需TI=1	
}
/******************串口初始化完毕******************/

/******************8266初始化******************/
void send_message(char *x)  //初始化8266 发送AT指令
{
	uint a;
	uint b,c,d,e;
	b=c=d=e=1;	
	do
	{
		for (a = 0; a<5000; a++);	
		printf("%s",x);
		do {
			if (RI) {    //查询是否有数据接收
				Buffer = SBUF;  //数据暂存于变量中
				RI = 0;
				if (Buffer == 'K')
				{
					b = 0;
					d = 0;
				}
				c++;
				if (c == 1000)  //重新发送
				{
					c = 1;
					d = 0;
				}
			}
		} while (d);
	} while (b);
}
void INIT_8266()  //初始化8266
{
	delay(2000);
	send_message("ATE0\r\n");
	delay(3000);
	send_message("AT+UART=9600,0,0,0\r\n");
	delay(3000);
	send_message("AT+CWMODE=1\r\n");	
	delay(3000);
	send_message("AT+CWJAP=\"ccc\",\"455455455\"\r\n");	
	delay(3000);
	send_message("AT+CIPMUX=0\r\n");
	delay(3000);	
	send_message("AT+RST\r\n");
	delay(5000);		
}
/******************8266初始化完毕******************/

/*
void Com_Int() interrupt 4	
{	
	if(RI == 1)   			//当硬件接收到一个数据时，RI会置位
	{
		RI = 0; 
		Buffer=SBUF;		
	}
}
*/
void main()
{
	uint N=64;  //28BYJ-48 5V DC 4线程步进电机 减速比为1：64
				//及内部齿轮转64圈，最外部齿轮转1圈	
	uint i;
	uint flag_motor=0;  //是否转动
	LED1=LED2=1;
	LED3=0;
	LED4=1;
	INIT();
	//INIT_8266();
	//led=1;
	while(1)
	{
		/*if(K1==0)
		{
			while(K1==0);
			send_message("AT+CIPSTART=\"TCP\",\"172.28.151.1\",8080");
			LED4=0;
		}
		if(K2==0)
		{
			while(K2==0);
			send_message("AT+CIPSEND=15\r\n");
			while(K3!=0);
			send_message("I can hear you!");
		}*/
		if(K1==0||Buffer=='z'||sig==1)
		{
			//while(K1==0);
			/*send_message("zheng zhuang zhong...\n");
			LED1=0;
			LED3=1;*/
			for(i=0;i<N;i++)
			{
				if(!CW_motor())
					break;
			}
			//LED1=1;
			//LED3=0;
		}
		if(K2==0||Buffer=='f')
		{
			/*send_message("fan zhuang zhong...\n");
			while(K2==0);
			LED2=0;
			LED3=1;*/
			for(i=0;i<N;i++)
			{
				if(!CCW_motor())
					break;
			}
			//LED2=1;
			//LED3=0;
		}
		Buffer=0;  //清空Buffer的值  至下一次串行中断再获取指令值
	}		
}

最后说几点，我用的是STC89C52RC的51单片机芯片，晶振是12MHz，非常坑...根本配不出9600的波特率，误差太大，所以AT指令发送各种鬼畜，当时也是图便宜买的8266-01的模块，模块的稳定性也可能有比较大的问题，而且刚买的8266模块的波特率不是9600，也忘记是多少了，所以不是十分推荐用这种方式，下次有空会更新固件开发的文章，希望可以帮到刚入的师弟师妹或者开发者。

猜你喜欢

转载自blog.csdn.net/Dream_cc/article/details/54813253
今日推荐
《美国对全球网络空间安全与发展的威胁和破坏》报告发布
火速冲上 GitHub 热榜 —— 开源编程语言、框架哪有这么可爱？
北京人形机器人创新中心发布全球首个纯电驱拟人奔跑的全尺寸人形机器人“天工”
LFOSSA 源来如此公开课 | 掌握云原生未来：CNCF 认证全面攻略与备考秘籍
周排行
循环神经网络（rnn）讲解
Tigao教程四：单独的关节运动
金蝶K3WISE15.0-注册套打教程
如何在Mac上配置Kubernetes
Android应用结束自身进程的方法
SpringMVC学习 十三 拦截器栈
中国驻洛杉矶总领馆举行新春招待会
HttpClient get post 发送
11 - three.js 笔记 - 绘制三维字体模型
Mysql递归获取某个父节点下面的所有子节点和子节点上的所有父节点
每日归档
更多
2024-05-01(4)
2024-04-30(1)
2024-04-29(40)
2024-04-28(0)
2024-04-27(56)
2024-04-26(39)
2024-04-25(22)
2024-04-24(36)
2024-04-23(26)
2024-04-22(39)

代码天地 © 2018 codetd.com

境外服务器   最新电视剧2022