智能小车之蓝牙控制并测速小车、wife控制小车、4g控制小车、语音控制小车
目录
1. 蓝牙控制小车
2. 蓝牙控制并测速小车
3. wifi控制测速小车
4. 4g控制小车
5. 语音控制小车
1. 蓝牙控制小车
- 使用蓝牙模块，串口透传
- 蓝牙模块，又叫做蓝牙串口模块
串口透传技术：
- 透传即透明传送，是指在数据的传输过程中，通过无线的方式这组数据不发生任何形式的改变，仿 佛传输过程是透明的一样，同时保证传输的质量，原封不动地到了最终接收者手里。
- 以太网，蓝牙，Zigbee, GPRS 等模块玩法一样，对嵌入式程序员来说，不需要关心通讯模块内部数据 及协议栈工作原理，只要通过串口编程获得数据即可
代码实现：
//main.c
#include "motor.h"
#include "delay.h"
#include "uart.h"
void main()
{
UartInit();
while(1){
stop();
}
}
//uart.c
#include "reg52.h"
#include "motor.h"
#include "string.h"
#include "delay.h"
sbit D5 = P3^7;
#define SIZE 12
sfr AUXR = 0x8E;
char buffer[SIZE];
void UartInit(void) //[email protected]
{
AUXR = 0x01;
SCON = 0x50; //配置串口工作方式1，REN使能接收
TMOD &= 0x0F;
TMOD |= 0x20;//定时器1工作方式位8位自动重装
TH1 = 0xFD;
TL1 = 0xFD;//9600波特率的初值
TR1 = 1;//启动定时器
EA = 1;//开启总中断
ES = 1;//开启串口中断
}
//M1qian M2 hou M3 zuo M4 you
void Uart_Handler() interrupt 4
{
static int i = 0;//静态变量，被初始化一次
char tmp;
if(RI)//中断处理函数中，对于接收中断的响应
{
RI = 0;//清除接收中断标志位
tmp = SBUF;
if(tmp == 'M'){
i = 0;
}
buffer[i++] = tmp;
//灯控指令
if(buffer[0] == 'M'){
switch(buffer[1]){
case '1':
goForward();
Delay10ms();
break;
case '2':
goBack();
Delay10ms();
break;
case '3':
goLeft();
Delay10ms();
break;
case '4':
goRight();
Delay10ms();
break;
default:
stop();
break;
}
}
if(i == 12) {
memset(buffer, '\0', SIZE);
i = 0;
}
}
}
//motor.c
#include "reg52.h"
sbit RightCon1A = P3^2;
sbit RightCon1B = P3^3;
sbit LeftCon1A = P3^4;
sbit LeftCon1B = P3^5;
void goForward()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 1;
}
void goRight()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 0;
}
void goLeft()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 1;
}
void goBack()
{
LeftCon1A = 1;
LeftCon1B = 0;
RightCon1A = 1;
RightCon1B = 0;
}
void stop()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 0;
}
//delay.c
#include "intrins.h"
void Delay10ms() //@11.0592MHz
{
unsigned char i, j;
i = 18;
j = 235;
do
{
while (--j);
} while (--i);
}
void Delay1000ms() //@11.0592MHz
{
unsigned char i, j, k;
_nop_();
i = 8;
j = 1;
k = 243;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
2. 蓝牙控制并测速小车
原理：运用上面讲到的蓝牙模块和测速模块
代码实现：
//main.c
#include "motor.h"
#include "delay.h"
#include "uart.h"
#include "reg52.h"
#include "time.h"
#include "stdio.h"
#include "Oled.h"
sbit speedIO = P3^2;//外部中断0
unsigned int speedCnt = 0; //统计格子，脉冲次数
extern unsigned int speed;//速度
extern char signal; //主程序发速度数据的通知
char speedMes[24]; //主程序发送速度数据的字符串缓冲区
void Ex0Init()
{
EX0 = 1;//允许中断
//EA = 1;在串口初始化函数中已经打开了总中断
IT0 = 1;//外部中断的下降沿触发
}
void main()
{
Time0Init();//定时器0初始化
UartInit();//串口相关初始化
//外部中断初始化
Ex0Init();
Oled_Init();
Oled_Clear();
while(1){
if(signal){//定时器1s到点，把signal置一，主程序发送速度
sprintf(speedMes,"speed:%d cm/s",speed);//串口数据的字符串拼装，speed是格子，每个格子1cm
SendString(speedMes);//速度发出去
signal = 0;//清0speed,下次由定时器1s后的中断处理中再置一
}
Oled_Show_Str(2,2,speedMes);
}
}
void speedHandler() interrupt 0 //外部中断处理函数
{
speedCnt++;//码盘转动了一个格子
}
//uart.c
#include "reg52.h"
#include "motor.h"
#include "string.h"
sbit D5 = P3^7;
#define SIZE 12
sfr AUXR = 0x8E;
char buffer[SIZE];
void UartInit(void) //[email protected]
{
AUXR = 0x01;
SCON = 0x50; //配置串口工作方式1，REN使能接收
TMOD &= 0x0F;
TMOD |= 0x20;//定时器1工作方式位8位自动重装
TH1 = 0xFD;
TL1 = 0xFD;//9600波特率的初值
TR1 = 1;//启动定时器
EA = 1;//开启总中断
ES = 1;//开启串口中断
}
void SendByte(char mydata)
{
SBUF = mydata;
while(!TI);
TI = 0;
}
void SendString(char *str)
{
while(*str != '\0'){
SendByte(*str);
str++;
}
}
//M1qian M2 hou M3 zuo M4 you
void Uart_Handler() interrupt 4
{
static int i = 0;//静态变量，被初始化一次
char tmp;
if(RI)//中断处理函数中，对于接收中断的响应
{
RI = 0;//清除接收中断标志位
tmp = SBUF;
if(tmp == 'M'){
i = 0;
}
buffer[i++] = tmp;
//灯控指令
if(buffer[0] == 'M'){
switch(buffer[1]){
case '1':
goForward();
break;
case '2':
goBack();
break;
case '3':
goLeft();
break;
case '4':
goRight();
break;
default:
stop();
break;
}
}
if(i == 12) {
memset(buffer, '\0', SIZE);
i = 0;
}
}
}
//motor.c
#include "reg52.h"
sbit RightCon1A = P3^7;
sbit RightCon1B = P3^3;
sbit LeftCon1A = P3^4;
sbit LeftCon1B = P3^5;
void goForward()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 1;
}
void goRight()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 0;
}
void goLeft()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 1;
}
void goBack()
{
LeftCon1A = 1;
LeftCon1B = 0;
RightCon1A = 1;
RightCon1B = 0;
}
void stop()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 0;
}
//time.c
#include "motor.h"
#include "reg52.h"
extern unsigned int speedCnt;
unsigned int speed;
char signal = 0;
unsigned int cnt = 0;
void Time0Init()
{
//1. 配置定时器0工作模式位16位计时
TMOD = 0x01;
//2. 给初值，定一个0.5出来
TL0=0x33;
TH0=0xFE;
//3. 开始计时
TR0 = 1;
TF0 = 0;
//4. 打开定时器0中断
ET0 = 1;
//5. 打开总中断EA
EA = 1;
}
void Time0Handler() interrupt 1
{
cnt++; //统计爆表的次数. cnt=1的时候，报表了1
//重新给初值
TL0=0x33;
TH0=0xFE;
if(cnt == 2000){//爆表2000次，经过了1s
signal = 1;
cnt = 0; //当100次表示1s，重新让cnt从0开始，计算下一次的1s
//计算小车的速度，也就是拿到speedCnt的值
speed = speedCnt;
speedCnt = 0;//1秒后拿到speedCnt个格子，就能算出这1s的速度，格子清零
}
}
//oled.c
#include "reg52.h"
#include "intrins.h"
#include "Oledfont.h"
sbit scl = P1^2;
sbit sda = P1^3;
void IIC_Start()
{
scl = 0;
sda = 1;
scl = 1;
_nop_();
sda = 0;
_nop_();
}
void IIC_Stop()
{
scl = 0;
sda = 0;
scl = 1;
_nop_();
sda = 1;
_nop_();
}
char IIC_ACK()
{
char flag;
sda = 1;//就在时钟脉冲9期间释放数据线
_nop_();
scl = 1;
_nop_();
flag = sda;
_nop_();
scl = 0;
_nop_();
return flag;
}
void IIC_Send_Byte(char dataSend)
{
int i;
for(i = 0;i<8;i++){
scl = 0;//scl拉低，让sda做好数据准备
sda = dataSend & 0x80;//1000 0000获得dataSend的最高位，给sda
_nop_();//发送数据建立时间
scl = 1;//scl拉高开始发送
_nop_();//数据发送时间
scl = 0;//发送完毕拉低
_nop_();//
dataSend = dataSend << 1;
}
}
void Oled_Write_Cmd(char dataCmd)
{
// 1. start()
IIC_Start();
//
// 2. 写入从机地址 b0111 1000 0x78
IIC_Send_Byte(0x78);
// 3. ACK
IIC_ACK();
// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
IIC_Send_Byte(0x00);
// 5. ACK
IIC_ACK();
//6. 写入指令/数据
IIC_Send_Byte(dataCmd);
//7. ACK
IIC_ACK();
//8. STOP
IIC_Stop();
}
void Oled_Write_Data(char dataData)
{
// 1. start()
IIC_Start();
//
// 2. 写入从机地址 b0111 1000 0x78
IIC_Send_Byte(0x78);
// 3. ACK
IIC_ACK();
// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
IIC_Send_Byte(0x40);
// 5. ACK
IIC_ACK();
///6. 写入指令/数据
IIC_Send_Byte(dataData);
//7. ACK
IIC_ACK();
//8. STOP
IIC_Stop();
}
void Oled_Init(void){
Oled_Write_Cmd(0xAE);//--display off
Oled_Write_Cmd(0x00);//---set low column address
Oled_Write_Cmd(0x10);//---set high column address
Oled_Write_Cmd(0x40);//--set start line address
Oled_Write_Cmd(0xB0);//--set page address
Oled_Write_Cmd(0x81); // contract control
Oled_Write_Cmd(0xFF);//--128
Oled_Write_Cmd(0xA1);//set segment remap
Oled_Write_Cmd(0xA6);//--normal / reverse
Oled_Write_Cmd(0xA8);//--set multiplex ratio(1 to 64)
Oled_Write_Cmd(0x3F);//--1/32 duty
Oled_Write_Cmd(0xC8);//Com scan direction
Oled_Write_Cmd(0xD3);//-set display offset
Oled_Write_Cmd(0x00);//
Oled_Write_Cmd(0xD5);//set osc division
Oled_Write_Cmd(0x80);//
Oled_Write_Cmd(0xD8);//set area color mode off
Oled_Write_Cmd(0x05);//
Oled_Write_Cmd(0xD9);//Set Pre-Charge Period
Oled_Write_Cmd(0xF1);//
Oled_Write_Cmd(0xDA);//set com pin configuartion
Oled_Write_Cmd(0x12);//
Oled_Write_Cmd(0xDB);//set Vcomh
Oled_Write_Cmd(0x30);//
Oled_Write_Cmd(0x8D);//set charge pump enable
Oled_Write_Cmd(0x14);//
Oled_Write_Cmd(0xAF);//--turn on oled panel
}
void Oled_Clear()
{
unsigned char i,j; //-128 --- 127
for(i=0;i<8;i++){
Oled_Write_Cmd(0xB0 + i);//page0--page7
//每个page从0列
Oled_Write_Cmd(0x00);
Oled_Write_Cmd(0x10);
//0到127列，依次写入0，每写入数据，列地址自动偏移
for(j = 0;j<128;j++){
Oled_Write_Data(0);
}
}
}
void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2
unsigned int i;
Oled_Write_Cmd(0xb0+(row*2-2)); //page 0
Oled_Write_Cmd(0x00+(col&0x0f)); //low
Oled_Write_Cmd(0x10+(col>>4)); //high
for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){
Oled_Write_Data(F8X16[i]); //写数据oledTable1
}
Oled_Write_Cmd(0xb0+(row*2-1)); //page 1
Oled_Write_Cmd(0x00+(col&0x0f)); //low
Oled_Write_Cmd(0x10+(col>>4)); //high
for(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){
Oled_Write_Data(F8X16[i]); //写数据oledTable1
}
}
/******************************************************************************/
// 函数名称：Oled_Show_Char
// 输入参数：oledChar
// 输出参数：无
// 函数功能：OLED显示单个字符
/******************************************************************************/
void Oled_Show_Str(char row,char col,char *str){
while(*str!=0){
Oled_Show_Char(row,col,*str);
str++;
col += 8;
}
}
3. wifi控制测速小车
- Wifi模块-ESP-01s
- 蓝牙，ESP-01s，Zigbee, NB-Iot等通信模块都是基于AT指令的设计
AT指令介绍：
- AT指令集是从终端设备（Terminal Equipment，TE)或数据终端设备（Data Terminal Equipment，DTE)向终端适配器(Terminal Adapter，TA)或数据电路终端设备(Data Circuit Terminal Equipment，DCE)发送的。
- 其对所传输的数据包大小有定义：即对于AT指令的发送，除AT两个字符外，最多可以接收1056个 字符的长度（包括最后的空字符）。
- 每个AT命令行中只能包含一条AT指令；对于由终端设备主动向PC端报告的URC指示或者response 响应，也要求一行最多有一个，不允许上报的一行中有多条指示或者响应。AT指令以回车作为结 尾，响应或上报以回车换行为结尾。
代码实现：
//main.c
#include "motor.h"
#include "delay.h"
#include "uart.h"
#include "reg52.h"
#include "time.h"
#include "stdio.h"
#include "Oled.h"
#include "esp8266.h"
sbit speedIO = P3^2;//外部中断0
unsigned int speedCnt = 0; //统计格子，脉冲次数
extern unsigned int speed;//速度
extern char signal; //主程序发速度数据的通知
char speedMes[24]; //主程序发送速度数据的字符串缓冲区
//发送数据
char FSSJ[] = "AT+CIPSEND=0,5\r\n";
void Ex0Init()
{
EX0 = 1;//允许中断
//EA = 1;在串口初始化函数中已经打开了总中断
IT0 = 1;//外部中断的下降沿触发
}
void main()
{
Time0Init();//定时器0初始化
UartInit();//串口相关初始化
Delay1000ms();//给espwifi模块上电时间
initWifi_AP(); //初始化wifi工作在ap模式
waitConnect(); //等待客户端的连接
//外部中断初始化
Ex0Init();
Oled_Init();
Oled_Clear();
while(1){
if(signal){//定时器1s到点，把signal置一，主程序发送速度
SendString(FSSJ);
Delay1000ms();
sprintf(speedMes,"%dcms",speed);//串口数据的字符串拼装，speed是格子，每个格子1cm
SendString(speedMes);//速度发出去
signal = 0;//清0speed,下次由定时器1s后的中断处理中再置一
}
Oled_Show_Str(2,2,speedMes);
}
}
void speedHandler() interrupt 0 //外部中断处理函数
{
speedCnt++;//码盘转动了一个格子
}
//uart.c
#include "reg52.h"
#include "motor.h"
#include "string.h"
sbit D5 = P3^7;
#define SIZE 12
sfr AUXR = 0x8E;
char buffer[SIZE];
extern char AT_OK_Flag; //OK返回值的标志位
extern char Client_Connect_Flag;
void UartInit(void) //[email protected]
{
AUXR = 0x01;
SCON = 0x50; //配置串口工作方式1，REN使能接收
TMOD &= 0x0F;
TMOD |= 0x20;//定时器1工作方式位8位自动重装
TH1 = 0xFD;
TL1 = 0xFD;//9600波特率的初值
TR1 = 1;//启动定时器
EA = 1;//开启总中断
ES = 1;//开启串口中断
}
void SendByte(char mydata)
{
SBUF = mydata;
while(!TI);
TI = 0;
}
void SendString(char *str)
{
while(*str != '\0'){
SendByte(*str);
str++;
}
}
//M1qian M2 hou M3 zuo M4 you
void Uart_Handler() interrupt 4
{
static int i = 0;//静态变量，被初始化一次
char tmp;
if(RI)//中断处理函数中，对于接收中断的响应
{
RI = 0;//清除接收中断标志位
tmp = SBUF;
if(tmp == 'M' || tmp == 'O' || tmp == '0'){
i = 0;
}
buffer[i++] = tmp;
//连接服务器等OK返回值指令的判断
if(buffer[0] == 'O' && buffer[1] == 'K'){
AT_OK_Flag = 1;
memset(buffer, '\0', SIZE);
}
if(buffer[0] == '0' && buffer[2] == 'C'){
Client_Connect_Flag = 1;
memset(buffer, '\0', SIZE);
}
//灯控指令
if(buffer[0] == 'M'){
switch(buffer[1]){
case '1':
goForward();
break;
case '2':
goBack();
break;
case '3':
goLeft();
break;
case '4':
goRight();
break;
default:
stop();
break;
}
}
if(i == 12) {
memset(buffer, '\0', SIZE);
i = 0;
}
}
}
//motor.c
#include "reg52.h"
sbit RightCon1A = P3^7;
sbit RightCon1B = P3^3;
sbit LeftCon1A = P3^4;
sbit LeftCon1B = P3^5;
void goForward()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 1;
}
void goRight()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 0;
}
void goLeft()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 1;
}
void goBack()
{
LeftCon1A = 1;
LeftCon1B = 0;
RightCon1A = 1;
RightCon1B = 0;
}
void stop()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 0;
}
//time.c
#include "motor.h"
#include "reg52.h"
extern unsigned int speedCnt;
unsigned int speed;
char signal = 0;
unsigned int cnt = 0;
void Time0Init()
{
//1. 配置定时器0工作模式位16位计时
TMOD = 0x01;
//2. 给初值，定一个0.5出来
TL0=0x33;
TH0=0xFE;
//3. 开始计时
TR0 = 1;
TF0 = 0;
//4. 打开定时器0中断
ET0 = 1;
//5. 打开总中断EA
EA = 1;
}
void Time0Handler() interrupt 1
{
cnt++; //统计爆表的次数. cnt=1的时候，报表了1
//重新给初值
TL0=0x33;
TH0=0xFE;
if(cnt == 2000){//爆表2000次，经过了1s
signal = 1;
cnt = 0; //当100次表示1s，重新让cnt从0开始，计算下一次的1s
//计算小车的速度，也就是拿到speedCnt的值
speed = speedCnt;
speedCnt = 0;//1秒后拿到speedCnt个格子，就能算出这1s的速度，格子清零
}
}
//oled.c
#include "reg52.h"
#include "intrins.h"
#include "Oledfont.h"
sbit scl = P1^2;
sbit sda = P1^3;
void IIC_Start()
{
scl = 0;
sda = 1;
scl = 1;
_nop_();
sda = 0;
_nop_();
}
void IIC_Stop()
{
scl = 0;
sda = 0;
scl = 1;
_nop_();
sda = 1;
_nop_();
}
char IIC_ACK()
{
char flag;
sda = 1;//就在时钟脉冲9期间释放数据线
_nop_();
scl = 1;
_nop_();
flag = sda;
_nop_();
scl = 0;
_nop_();
return flag;
}
void IIC_Send_Byte(char dataSend)
{
int i;
for(i = 0;i<8;i++){
scl = 0;//scl拉低，让sda做好数据准备
sda = dataSend & 0x80;//1000 0000获得dataSend的最高位，给sda
_nop_();//发送数据建立时间
scl = 1;//scl拉高开始发送
_nop_();//数据发送时间
scl = 0;//发送完毕拉低
_nop_();//
dataSend = dataSend << 1;
}
}
void Oled_Write_Cmd(char dataCmd)
{
// 1. start()
IIC_Start();
//
// 2. 写入从机地址 b0111 1000 0x78
IIC_Send_Byte(0x78);
// 3. ACK
IIC_ACK();
// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
IIC_Send_Byte(0x00);
// 5. ACK
IIC_ACK();
//6. 写入指令/数据
IIC_Send_Byte(dataCmd);
//7. ACK
IIC_ACK();
//8. STOP
IIC_Stop();
}
void Oled_Write_Data(char dataData)
{
// 1. start()
IIC_Start();
//
// 2. 写入从机地址 b0111 1000 0x78
IIC_Send_Byte(0x78);
// 3. ACK
IIC_ACK();
// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
IIC_Send_Byte(0x40);
// 5. ACK
IIC_ACK();
///6. 写入指令/数据
IIC_Send_Byte(dataData);
//7. ACK
IIC_ACK();
//8. STOP
IIC_Stop();
}
void Oled_Init(void){
Oled_Write_Cmd(0xAE);//--display off
Oled_Write_Cmd(0x00);//---set low column address
Oled_Write_Cmd(0x10);//---set high column address
Oled_Write_Cmd(0x40);//--set start line address
Oled_Write_Cmd(0xB0);//--set page address
Oled_Write_Cmd(0x81); // contract control
Oled_Write_Cmd(0xFF);//--128
Oled_Write_Cmd(0xA1);//set segment remap
Oled_Write_Cmd(0xA6);//--normal / reverse
Oled_Write_Cmd(0xA8);//--set multiplex ratio(1 to 64)
Oled_Write_Cmd(0x3F);//--1/32 duty
Oled_Write_Cmd(0xC8);//Com scan direction
Oled_Write_Cmd(0xD3);//-set display offset
Oled_Write_Cmd(0x00);//
Oled_Write_Cmd(0xD5);//set osc division
Oled_Write_Cmd(0x80);//
Oled_Write_Cmd(0xD8);//set area color mode off
Oled_Write_Cmd(0x05);//
Oled_Write_Cmd(0xD9);//Set Pre-Charge Period
Oled_Write_Cmd(0xF1);//
Oled_Write_Cmd(0xDA);//set com pin configuartion
Oled_Write_Cmd(0x12);//
Oled_Write_Cmd(0xDB);//set Vcomh
Oled_Write_Cmd(0x30);//
Oled_Write_Cmd(0x8D);//set charge pump enable
Oled_Write_Cmd(0x14);//
Oled_Write_Cmd(0xAF);//--turn on oled panel
}
void Oled_Clear()
{
unsigned char i,j; //-128 --- 127
for(i=0;i<8;i++){
Oled_Write_Cmd(0xB0 + i);//page0--page7
//每个page从0列
Oled_Write_Cmd(0x00);
Oled_Write_Cmd(0x10);
//0到127列，依次写入0，每写入数据，列地址自动偏移
for(j = 0;j<128;j++){
Oled_Write_Data(0);
}
}
}
void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2
unsigned int i;
Oled_Write_Cmd(0xb0+(row*2-2)); //page 0
Oled_Write_Cmd(0x00+(col&0x0f)); //low
Oled_Write_Cmd(0x10+(col>>4)); //high
for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){
Oled_Write_Data(F8X16[i]); //写数据oledTable1
}
Oled_Write_Cmd(0xb0+(row*2-1)); //page 1
Oled_Write_Cmd(0x00+(col&0x0f)); //low
Oled_Write_Cmd(0x10+(col>>4)); //high
for(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){
Oled_Write_Data(F8X16[i]); //写数据oledTable1
}
}
/******************************************************************************/
// 函数名称：Oled_Show_Char
// 输入参数：oledChar
// 输出参数：无
// 函数功能：OLED显示单个字符
/******************************************************************************/
void Oled_Show_Str(char row,char col,char *str){
while(*str!=0){
Oled_Show_Char(row,col,*str);
str++;
col += 8;
}
}
//esp8266.c
#include "uart.h"
//1 工作在路由模式
code char LYMO[] = "AT+CWMODE=2\r\n";
//2 使能多链接
code char DLJ[] = "AT+CIPMUX=1\r\n";
//3 建立TCPServer
code char JLFW[] = "AT+CIPSERVER=1\r\n"; // default port = 333
char AT_OK_Flag = 0; //OK返回值的标志位
char Client_Connect_Flag = 0;
void initWifi_AP()
{
SendString(LYMO);
while(!AT_OK_Flag);
AT_OK_Flag = 0;
SendString(DLJ);
while(!AT_OK_Flag);
AT_OK_Flag = 0;
}
void waitConnect()
{
SendString(JLFW);
while(!Client_Connect_Flag);
AT_OK_Flag = 0;
}
//delay.c
#include "intrins.h"
void Delay1000ms() //@11.0592MHz
{
unsigned char i, j, k;
_nop_();
i = 8;
j = 1;
k = 243;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
4. 4g控制小车
原理：运用EC03-DNC4G通信模块
模块介绍：
- 基于串口AT指令的开发方式
- 有两种工作模式，默认是透传模式，通过其他方式进入AT指令模式
- 注意插卡不要出错，下图红色位置为SIM卡状态灯，亮才是正常
代码不做修改，直接基于蓝牙小车整合， 4g模块只要做好外网透传就可以了
5. 语音控制小车
语音模块配置：
使用SU-03T / LD3320
具体介绍看我之前写过的博客：https://blog.csdn.net/m0_74712453/article/details/13171085
语音控制小车开发和调试代码
代码示例：
//main.c
#include "reg52.h"
#include "hc04.h"
#include "delay.h"
#include "sg90.h"
#include "Oled.h"
#include "motor.h"
#define MIDDLE 0
#define LEFT 1
#define RIGHT 2
#define BZ 1
#define XJ 2
#define GS 3
sbit A25 = P1^5;
sbit A26 = P1^6;
sbit A27 = P1^7;
sbit leftSensorX = P2^7;
sbit rightSensorX = P2^6;
sbit leftSensorG = P2^5;
sbit rightSensorG = P2^4;
char dir;
double disMiddle;
double disLeft;
double disRight;
void xunjiMode()
{
if(leftSensorX == 0 && rightSensorX == 0){
goForward();
}
if(leftSensorX == 1 && rightSensorX == 0){
goLeft();
}
if(leftSensorX == 0 && rightSensorX == 1){
goRight();
}
if(leftSensorX == 1 && rightSensorX == 1){
//停
stop();
}
}
void gensuiMode()
{
if(leftSensorG == 0 && rightSensorG == 0){
goForward();
}
if(leftSensorG == 1 && rightSensorG == 0){
goRight();
}
if(leftSensorG == 0 && rightSensorG == 1){
goLeft();
}
if(leftSensorG == 1 && rightSensorG == 1){
//停
stop();
}
}
void bizhangMode()
{
if(dir != MIDDLE){
sgMiddle();
dir = MIDDLE;
Delay300ms();
}
disMiddle = get_distance();
if(disMiddle > 35){
//前进
goForward();
}else if(disMiddle < 10){
goBack();
}else
{
//停止
stop();
//测左边距离
sgLeft();
Delay300ms();
disLeft = get_distance();
sgMiddle();
Delay300ms();
sgRight();
dir = RIGHT;
Delay300ms();
disRight = get_distance();
if(disLeft < disRight){
goRight();
Delay150ms();
stop();
}
if(disRight < disLeft){
goLeft();
Delay150ms();
stop();
}
}
}
void main()
{
int mark = 0;
Time0Init();
Time1Init();
//舵机的初始位置
sgMiddle();
Delay300ms();
Delay300ms();
dir = MIDDLE;
Oled_Init();
Oled_Clear();
Oled_Show_Str(2,2,"-----Ready----");
while(1){
//满足寻迹模式的条件
if(A25 == 0 && A26 == 1 && A27 == 1){
if(mark != XJ){
Oled_Clear();
Oled_Show_Str(2,2,"-----XunJi----");
}
mark = XJ;
xunjiMode();
}
//满足跟随模式的条件
if(A25 == 1 && A26 == 0 && A27 == 1){
if(mark != GS){
Oled_Clear();
Oled_Show_Str(2,2,"-----GenSui----");
}
mark = GS;
gensuiMode();
}
//满足避障模式的条件
if(A25 == 1 && A26 == 1 && A27 == 0){
if(mark != BZ){
Oled_Clear();
Oled_Show_Str(2,2,"-----BiZhang----");
}
mark = BZ;
bizhangMode();
}
}
}
//hc04.c
#include "reg52.h"
#include "delay.h"
sbit Trig = P2^3;
sbit Echo = P2^2;
void Time1Init()
{
TMOD &= 0x0F; //设置定时器模式
TMOD |= 0x10;
TH1 = 0;
TL1 = 0;
//设置定时器0工作模式1，初始值设定0开始数数，不着急启动定时器
}
void startHC()
{
Trig = 0;
Trig = 1;
Delay10us();
Trig = 0;
}
double get_distance()
{
double time;
//定时器数据清零，以便下一次测距
TH1 = 0;
TL1 = 0;
//1. Trig ，给Trig端口至少10us的高电平
startHC();
//2. echo由低电平跳转到高电平，表示开始发送波
while(Echo == 0);
//波发出去的那一下，开始启动定时器
TR1 = 1;
//3. 由高电平跳转回低电平，表示波回来了
while(Echo == 1);
//波回来的那一下，我们开始停止定时器
TR1 = 0;
//4. 计算出中间经过多少时间
time = (TH1 * 256 + TL1)*1.085;//us为单位
//5. 距离 = 速度 （340m/s）* 时间/2
return (time * 0.017);
}
//delay.c
#include "intrins.h"
void Delay2000ms() //@11.0592MHz
{
unsigned char i, j, k;
i = 15;
j = 2;
k = 235;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void Delay10us() //@11.0592MHz
{
unsigned char i;
i = 2;
while (--i);
}
void Delay300ms() //@11.0592MHz
{
unsigned char i, j, k;
_nop_();
i = 3;
j = 26;
k = 223;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void Delay150ms() //@11.0592MHz
{
unsigned char i, j, k;
i = 2;
j = 13;
k = 237;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void Delay450ms() //@11.0592MHz
{
unsigned char i, j, k;
_nop_();
i = 4;
j = 39;
k = 209;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
//sg90.c
#include "reg52.h"
#include "delay.h"
sbit sg90_con = P1^1;
int jd;
int cnt = 0;
void Time0Init()
{
//1. 配置定时器0工作模式位16位计时
TMOD &= 0xF0; //设置定时器模式
TMOD |= 0x01;
//2. 给初值，定一个0.5出来
TL0=0x33;
TH0=0xFE;
//3. 开始计时
TR0 = 1;
TF0 = 0;
//4. 打开定时器0中断
ET0 = 1;
//5. 打开总中断EA
EA = 1;
}
void sgMiddle()
{
//中间位置
jd = 3; //90度 1.5ms高电平
cnt = 0;
}
void sgLeft()
{
//左边位置
jd = 5; //135度 1.5ms高电平
cnt = 0;
}
void sgRight()
{
//右边位置
jd = 1; //0度
cnt = 0;
}
void Time0Handler() interrupt 1
{
cnt++; //统计爆表的次数. cnt=1的时候，报表了1
//重新给初值
TL0=0x33;
TH0=0xFE;
//控制PWM波
if(cnt < jd){
sg90_con = 1;
}else{
sg90_con = 0;
}
if(cnt == 40){//爆表40次，经过了20ms
cnt = 0; //当100次表示1s，重新让cnt从0开始，计算下一次的1s
sg90_con = 1;
}
}
//motor.c
#include "reg52.h"
sbit RightCon1A = P3^7;
sbit RightCon1B = P3^3;
sbit LeftCon1A = P3^4;
sbit LeftCon1B = P3^5;
void goForward()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 1;
}
void goRight()
{
LeftCon1A = 0;
LeftCon1B = 1;
RightCon1A = 0;
RightCon1B = 0;
}
void goLeft()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 1;
}
void goBack()
{
LeftCon1A = 1;
LeftCon1B = 0;
RightCon1A = 1;
RightCon1B = 0;
}
void stop()
{
LeftCon1A = 0;
LeftCon1B = 0;
RightCon1A = 0;
RightCon1B = 0;
}
//oled.c
#include "reg52.h"
#include "intrins.h"
#include "Oledfont.h"
sbit scl = P1^2;
sbit sda = P1^3;
void IIC_Start()
{
scl = 0;
sda = 1;
scl = 1;
_nop_();
sda = 0;
_nop_();
}
void IIC_Stop()
{
scl = 0;
sda = 0;
scl = 1;
_nop_();
sda = 1;
_nop_();
}
char IIC_ACK()
{
char flag;
sda = 1;//就在时钟脉冲9期间释放数据线
_nop_();
scl = 1;
_nop_();
flag = sda;
_nop_();
scl = 0;
_nop_();
return flag;
}
void IIC_Send_Byte(char dataSend)
{
int i;
for(i = 0;i<8;i++){
scl = 0;//scl拉低，让sda做好数据准备
sda = dataSend & 0x80;//1000 0000获得dataSend的最高位，给sda
_nop_();//发送数据建立时间
scl = 1;//scl拉高开始发送
_nop_();//数据发送时间
scl = 0;//发送完毕拉低
_nop_();//
dataSend = dataSend << 1;
}
}
void Oled_Write_Cmd(char dataCmd)
{
// 1. start()
IIC_Start();
//
// 2. 写入从机地址 b0111 1000 0x78
IIC_Send_Byte(0x78);
// 3. ACK
IIC_ACK();
// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
IIC_Send_Byte(0x00);
// 5. ACK
IIC_ACK();
//6. 写入指令/数据
IIC_Send_Byte(dataCmd);
//7. ACK
IIC_ACK();
//8. STOP
IIC_Stop();
}
void Oled_Write_Data(char dataData)
{
// 1. start()
IIC_Start();
//
// 2. 写入从机地址 b0111 1000 0x78
IIC_Send_Byte(0x78);
// 3. ACK
IIC_ACK();
// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
IIC_Send_Byte(0x40);
// 5. ACK
IIC_ACK();
///6. 写入指令/数据
IIC_Send_Byte(dataData);
//7. ACK
IIC_ACK();
//8. STOP
IIC_Stop();
}
void Oled_Init(void){
Oled_Write_Cmd(0xAE);//--display off
Oled_Write_Cmd(0x00);//---set low column address
Oled_Write_Cmd(0x10);//---set high column address
Oled_Write_Cmd(0x40);//--set start line address
Oled_Write_Cmd(0xB0);//--set page address
Oled_Write_Cmd(0x81); // contract control
Oled_Write_Cmd(0xFF);//--128
Oled_Write_Cmd(0xA1);//set segment remap
Oled_Write_Cmd(0xA6);//--normal / reverse
Oled_Write_Cmd(0xA8);//--set multiplex ratio(1 to 64)
Oled_Write_Cmd(0x3F);//--1/32 duty
Oled_Write_Cmd(0xC8);//Com scan direction
Oled_Write_Cmd(0xD3);//-set display offset
Oled_Write_Cmd(0x00);//
Oled_Write_Cmd(0xD5);//set osc division
Oled_Write_Cmd(0x80);//
Oled_Write_Cmd(0xD8);//set area color mode off
Oled_Write_Cmd(0x05);//
Oled_Write_Cmd(0xD9);//Set Pre-Charge Period
Oled_Write_Cmd(0xF1);//
Oled_Write_Cmd(0xDA);//set com pin configuartion
Oled_Write_Cmd(0x12);//
Oled_Write_Cmd(0xDB);//set Vcomh
Oled_Write_Cmd(0x30);//
Oled_Write_Cmd(0x8D);//set charge pump enable
Oled_Write_Cmd(0x14);//
Oled_Write_Cmd(0xAF);//--turn on oled panel
}
void Oled_Clear()
{
unsigned char i,j; //-128 --- 127
for(i=0;i<8;i++){
Oled_Write_Cmd(0xB0 + i);//page0--page7
//每个page从0列
Oled_Write_Cmd(0x00);
Oled_Write_Cmd(0x10);
//0到127列，依次写入0，每写入数据，列地址自动偏移
for(j = 0;j<128;j++){
Oled_Write_Data(0);
}
}
}
void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2
unsigned int i;
Oled_Write_Cmd(0xb0+(row*2-2)); //page 0
Oled_Write_Cmd(0x00+(col&0x0f)); //low
Oled_Write_Cmd(0x10+(col>>4)); //high
for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){
Oled_Write_Data(F8X16[i]); //写数据oledTable1
}
Oled_Write_Cmd(0xb0+(row*2-1)); //page 1
Oled_Write_Cmd(0x00+(col&0x0f)); //low
Oled_Write_Cmd(0x10+(col>>4)); //high
for(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){
Oled_Write_Data(F8X16[i]); //写数据oledTable1
}
}
/******************************************************************************/
// 函数名称：Oled_Show_Char
// 输入参数：oledChar
// 输出参数：无
// 函数功能：OLED显示单个字符
/******************************************************************************/
void Oled_Show_Str(char row,char col,char *str){
while(*str!=0){
Oled_Show_Char(row,col,*str);
str++;
col += 8;
}
}