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Dependencies:   WIZWebtInterface mbed

main.cpp

Committer:
846354866
Date:
2016-11-04
Revision:
0:25d52c6a3448
Child:
1:900e3ba27ddb

File content as of revision 0:25d52c6a3448:

#include "mbed.h"
#include "EthernetInterface.h"
//#include "SDFileSystem.h"
#include <stdio.h>
#include <string.h>


#define MAC     "\x00\x08\xDC\x11\x34\x78"
#define IP      "192.168.1.123"
#define MASK    "255.255.255.0"
#define GATEWAY "192.168.1.1"

#define HTTPD_SERVER_PORT   80
#define HTTPD_MAX_REQ_LENGTH   1023
#define HTTPD_MAX_HDR_LENGTH   255
#define HTTPD_MAX_FNAME_LENGTH   127
#define HTTPD_MAX_DNAME_LENGTH   127


Serial uart(PA_13,PA_14);
DigitalInOut myIOD10(D10);
DigitalIn myInD11(D11);
DigitalOut myOutD12(D12);
AnalogIn myInA1(A1);
Timeout button_ledTimeout;
Timeout receive_dht11Timeout;

unsigned char RH,RL,TH,TL;
unsigned char data_byte;
unsigned int  U8FLAG;
unsigned char status_led;
unsigned char seaver_ip[] = IP;
char led_control[6] = "cloce";


//SDFileSystem sd(p5, p6, p7, p8, "sd"); // LPC1768 MBD2PMD
//SDFileSystem sd(P0_18, P0_17, P0_15, P0_16, "sd"); // Seeeduino Arch Pro SPI2SD
//SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // K64F
//SDFileSystem sd(PB_3, PB_2, PB_1, PB_0, "sd"); // WIZwiki-W7500 

EthernetInterface eth;
TCPSocketServer server;
TCPSocketConnection client;

char buffer[HTTPD_MAX_REQ_LENGTH+1];
char httpHeader[HTTPD_MAX_HDR_LENGTH+1];
char fileName[HTTPD_MAX_FNAME_LENGTH+1];
char dirName[HTTPD_MAX_DNAME_LENGTH+1];
char *uristr;
char *eou;
char *qrystr;


Ticker ledTick;

void receive_dht11();
unsigned char receive_byte();

void delay(unsigned char ms) //延时模块// 
{ 
    unsigned int y;
    while(ms--)
        for(y=1920; y>0; y--);
}

void Delay_us(unsigned char us)
{
    unsigned char y;
    while(us--)
        for(y=2; y>0; y--);
}


void button_led()
{  
    while(myInD11.read())
    {
        wait(0.01f);
        if(!myInD11.read())
        {
            myOutD12.write(!myOutD12.read());
            status_led = myOutD12.read();
            break;
        }
    }
    
    button_ledTimeout.attach(&button_led,0.1f);
}

void getFile(char* uri)
{
    uart.printf("getFile %s\n", uri);
    strcpy(led_control, &uri[1]);
    //receive_dht11();
    char *lstchr = strrchr(uri, NULL) -1;
    sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n");
    client.send(httpHeader,strlen(httpHeader));
    sprintf(httpHeader,"<html><head><title>hello dfrobot</title></head><body><h1> Information State</h1><ul>");
    client.send(httpHeader,strlen(httpHeader));
       
    sprintf(httpHeader,"<H1>Temperature:%d  Celsius</H1>", TH);
    client.send(httpHeader,strlen(httpHeader));
    sprintf(httpHeader,"<H1>Humidity:%d  %%</H1>", RH);
    client.send(httpHeader,strlen(httpHeader));
    sprintf(httpHeader,"<H1>Gas Value:%d</H1>", myInA1.read_u16());
    client.send(httpHeader,strlen(httpHeader));
    
    static char i = 0, j = 0, open_1 = 1, cloce_1 = 1, k;
    if (strncmp(led_control, "cloce", 5)==0)
     {uart.printf("status_led--cloce--- %d\n", status_led);
        if(cloce_1)
        {
            sprintf(httpHeader,"<H1>Led state:CLOCE</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(0);   
            sprintf(httpHeader,"<form action=\"http://%s/open\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
            
            j = 1;
            k = status_led;
            cloce_1 = 0;
        }
         else if (k == status_led && j)
         {
            sprintf(httpHeader,"<H1>Led state:CLOCE</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(0);   
            sprintf(httpHeader,"<form action=\"http://%s/open\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
            j = 0;
        }
        else if(status_led && !j)
        {
            sprintf(httpHeader,"<H1>Led state:OPEN</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(1);
            sprintf(httpHeader,"<form action=\"http://%s/cloce\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
        }
        else if(!status_led && !j)
        {
            sprintf(httpHeader,"<H1>Led state:CLOCE</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(0);   
            sprintf(httpHeader,"<form action=\"http://%s/open\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
        }
        
        open_1 = 1;
     }
     else if (strncmp(led_control, "open", 4)==0)
     {uart.printf("status_led--open--- %d\n", status_led);
        if(open_1)
        {
            sprintf(httpHeader,"<H1>Led state:OPEN</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(1);
            sprintf(httpHeader,"<form action=\"http://%s/cloce\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
        
            i = 1;
            k = status_led;
            open_1 = 0;
        }
        else if(k == status_led && i)
        {
            sprintf(httpHeader,"<H1>Led state:OPEN</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(1);
            sprintf(httpHeader,"<form action=\"http://%s/cloce\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
            i = 0;
        }
        else if (status_led && !i)// 0
         {
            sprintf(httpHeader,"<H1>Led state:OPEN</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(1);
            sprintf(httpHeader,"<form action=\"http://%s/cloce\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
        }
        else if (!status_led && !i)
        {
            sprintf(httpHeader,"<H1>Led state:CLOCE</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(0);   
            sprintf(httpHeader,"<form action=\"http://%s/open\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
        }
        
        cloce_1 = 1;
     }
    
    if (strncmp(led_control, "", 1)==0)
    {
        if(myOutD12.read())
        {
            sprintf(httpHeader,"<H1>Led state:OPEN</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(1);
        
            sprintf(httpHeader,"<form action=\"http://%s/cloce\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
            status_led = 1;
        }
        else
        {
            sprintf(httpHeader,"<H1>Led state:CLOCE</H1>");
            client.send(httpHeader,strlen(httpHeader));
            myOutD12.write(0);   
        
            sprintf(httpHeader,"<form action=\"http://%s/open\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip);
            client.send(httpHeader,strlen(httpHeader));
            status_led = 0;
        }    
    }
    //status_led = myOutD12.read();    
    /*if(!status_led)
    {
        sprintf(httpHeader,"<H1>Led state:OPEN  </H1>");
        client.send(httpHeader,strlen(httpHeader));
        myOutD12.write(1);
    }else
    {
        sprintf(httpHeader,"<H1>Led state:CLOCE </H1>");
        client.send(httpHeader,strlen(httpHeader));
        myOutD12.write(0);
    }     
    
    
    sprintf(httpHeader,"<form action=\"http://%s/%s\"><input type=\"submit\" value=\"ON/OFF\"></form>", seaver_ip, led_control);
    client.send(httpHeader,strlen(httpHeader));*/
    
    sprintf(httpHeader,"<meta http-equiv=\"refresh\" content=\"1\">");
    client.send(httpHeader,strlen(httpHeader));
    
    sprintf(httpHeader,"</ul></body></html>");
    client.send(httpHeader,strlen(httpHeader));
}

int main (void)
{
    uart.baud(115200);
    uart.printf("Initializing\r\n");
//    EthernetInterface eth;
    uart.printf("Initializing Ethernet\r\n");
    //eth.init(); //Use DHCP
    //eth.init((uint8_t*)MAC);    // Use DHCP for WIZnetInterface
    eth.init((uint8_t*)MAC,IP,MASK,GATEWAY);  //IP,mask,Gateway
    uart.printf("Connecting\r\n");
    eth.connect();
    uart.printf("IP Address is %s\r\n", eth.getIPAddress());

//    TCPSocketServer server;
    server.bind(HTTPD_SERVER_PORT);
    server.listen();
    uart.printf("Server Listening\r\n");
    
    button_ledTimeout.attach(&button_led,0.1f);
    //receive_dht11Timeout.attach(&receive_dht11,0.2f);

    while (true) {
        uart.printf("\nWait for new connection...\r\n");
        server.accept(client);
        client.set_blocking(false, 1500); // Timeout after (1.5)s

        uart.printf("Connection from: %s\r\n", client.get_address());
        uart.printf("%s():%d\n",__FUNCTION__, __LINE__);
        while (true) {
            //led2 = true;
            int n = client.receive(buffer, sizeof(buffer));
            if (n <= 0) break;
            uart.printf("Recieved Data: %d\r\n\r\n%.*s\r\n",n,n,buffer);
            if (n >= 1024) {
                sprintf(httpHeader,"HTTP/1.1 413 Request Entity Too Large \r\nContent-Type: text\r\nConnection: Close\r\n\r\n");
                client.send(httpHeader,strlen(httpHeader));
                client.send(buffer,n);
                break;
            } else {
                uart.printf("%s():%d\n",__FUNCTION__, __LINE__);
                buffer[n]=0;
            }
            if (!strncmp(buffer, "GET ", 4)) {
                uart.printf("%s():%d\n",__FUNCTION__, __LINE__);
                uristr = buffer + 4;
                eou = strstr(uristr, " ");
                if (eou == NULL) {
                            uart.printf("%s():%d\n",__FUNCTION__, __LINE__);
                    sprintf(httpHeader,"HTTP/1.1 400 Bad Request \r\nContent-Type: text\r\nConnection: Close\r\n\r\n");
                    client.send(httpHeader,strlen(httpHeader));
                    client.send(buffer,n);
                } else {
                            uart.printf("%s():%d\n",__FUNCTION__, __LINE__);
                    *eou = 0;
                    getFile(uristr);
                }
            }
        }
        //led2 = false;
        client.close();
    }
}

unsigned char receive_byte()//接收一个字节//
{
    unsigned char i,temp;
    for(i=0;i<8;i++)//接收8bit的数据
    {
        U8FLAG = 2;
        while(!myIOD10.read() && U8FLAG++);//等待50us的低电平开始信号结束
        Delay_us(30);
        temp=0;//时间为 26us-28us数据'0'
        if(myIOD10.read()==1)
        temp=1;//如果 26us-28us'1'
        U8FLAG = 2;
        while(myIOD10.read() && U8FLAG++);//'0'为 26us-28us'1'为 70us
        //超时则跳出for循环
        if(U8FLAG==1)break;
        data_byte<<=1;//
        data_byte|=temp;
    }
    return data_byte;
}

void receive_dht11()//接收数据//
{
    unsigned char T_H,T_L,R_H,R_L,check,num_check;
    
    // REQUEST SAMPLE
    myIOD10.output();
    myIOD10.write(0);
    delay(20);//wait(0.020f);
    
    myIOD10.write(1);
    Delay_us(25);//wait(26/1000*0.001f);
    myIOD10.write(1);
    
    myIOD10.input();
    if(!myIOD10.read())//判断从机是否有低电平响应信号//
    {
        while(!myIOD10.read());//判断从机发出 80us 的低电平响应信号是否结束//
        while(myIOD10.read());//判断从机发出  80us
        R_H=receive_byte();//湿度高位
        R_L=receive_byte();//湿度低位
        T_H=receive_byte();//温度高位
        T_L=receive_byte();//温度低位
        check=receive_byte();//校验位
        uart.printf("--R_H--%d---R_L---%d--T_H--%d---T_L---%d\r\n", R_H,R_L,T_H,T_L);
        Delay_us(20);
        num_check=R_H+R_L+T_H+T_L;uart.printf("--num_check--%d---check---%d\r\n", num_check,check);
        if(num_check==check)//判断读到的四个数据之和是否与校验位相同
        {
            RH=R_H;
            RL=R_L;
            TH=T_H;
            TL=T_L;
            check=num_check;
        }
    }
    
    /*uart.printf("humidity [H] -out--%d\r\n", RH);
    uart.printf("humidity [L] -out--%d\r\n", RL);
    uart.printf("temperature [H] -out--%d\r\n", TH);
    uart.printf("temperature [L] -out--%d\r\n", TL);*/
    
    receive_dht11Timeout.attach(&receive_dht11,0.2f);
}