Victor Dang
my repo
main.cpp
- Committer:
- Victordang
- Date:
- 2019-04-17
- Revision:
- 5:a57f2e7ebb20
- Parent:
- 4:d8270d048cc7
File content as of revision 5:a57f2e7ebb20:
// ESP-WROOM-02 Static page WEB server to control Mbed
#include "mbed.h"
Serial pc(USBTX, USBRX);
Serial wroom(p28, p27); // tx, rx
// Standard Mbed LED definitions
DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut reset(p26);
Timer t1;
Timer t2;
////////
char ssid[32] = "ssid"; // enter WiFi router ssid inside the quotes
char pwd [32] = "password"; // enter WiFi router password inside the quotes
char str[255];
void WROOMconfig();
///////
struct tm t;
int bufflen, DataRX, counter, getcount, replycount, servreq, timeout;
int bufl, ipdLen, linkID, weberror;
char temp[10];
//char webcount[8];
char type[16];
char type1[16];
char channel[2];
char cmdbuff[32];
char replybuff[1024];
char webdata[1024]; // This may need to be bigger depending on WEB browser used
char webbuff[4096]; // Currently using 1986 characters, Increase this if more web page data added
void SendCMD(),getreply(),ReadWebData(),startserver(),sendpage(),SendWEB(),sendcheck();
int port =80; // set server port
int SERVtimeout =5; // set server timeout in seconds in case link breaks.
// Serial Interrupt read ESP data
void callback()
{
//led3=1;
while (wroom.readable()) {
webbuff[counter] = wroom.getc();
counter++;
}
if(strlen(webbuff)>bufflen) {
DataRX=1;
//led3=0;
}
}
int main()
{
reset=0;
pc.baud(115200);
pc.printf("\f\n\r------------ ESP-WROOM-02 Hardware Reset --------------\n\r");
wait(0.5);
reset=1;
led1=0,led2=0,led3=0;
timeout=10;
getcount=10;
getreply();
wroom.baud(115200); // ESP-WROOM-02 baudrate. Maximum on KLxx' is 115200, 230400 works on K20 and K22F
WROOMconfig();
startserver();
while(1) {
if(DataRX==1) {
ReadWebData();
if (servreq == 1 && weberror == 0) {
sendpage();
}
wroom.attach(&callback);
pc.printf(" IPD Data:\r\n\n Link ID = %d,\r\n IPD Header Length = %d \r\n IPD Type = %s\r\n", linkID, ipdLen, type);
pc.printf("\n\n HTTP Packet: \n\n%s\n", webdata);
pc.printf(" Web Characters sent : %d\n\n", bufl);
pc.printf(" -------------------------------------\n\n");
//strcpy(lasthit, timebuf);
servreq=0;
}
}
}
// Static WEB page
void sendpage()
{
// WEB page data
strcpy(webbuff, "<!DOCTYPE html>");
strcat(webbuff, "<html><head><title>IISEC - Matsui Lab</title><meta charset=\"UTF-8\"></head>");
strcat(webbuff, "<body>");
strcat(webbuff, "<div style=\"text-align:center; background-color:#FBFEFC; color:#040712;\"><h1>情報セキュリティ大学院 <br> 松井研 - 2019</h1>");
strcat(webbuff, "<br><h1>ESP-WROOM-02 and LPC7168 Webサーバー</h1>");
strcat(webbuff, "</div><br /><hr><hr>\r\n");
strcat(webbuff, "<p><div align=\"center\"><form method=\"POST\"><strong>");
if(led1==0) {
strcat(webbuff, "<p><input type=\"radio\" name=\"led1\" value=\"0\" checked> LED 1 off");
strcat(webbuff, "<br><input type=\"radio\" name=\"led1\" value=\"1\" > LED 1 on");
} else {
strcat(webbuff, "<p><input type=\"radio\" name=\"led1\" value=\"0\" > LED 1 off");
strcat(webbuff, "<br><input type=\"radio\" name=\"led1\" value=\"1\" checked> LED 1 on");
}
if(led2==0) {
strcat(webbuff, "<p><input type=\"radio\" name=\"led2\" value=\"0\" checked> LED 2 off");
strcat(webbuff, "<br><input type=\"radio\" name=\"led2\" value=\"1\" > LED 2 on");
} else {
strcat(webbuff, "<p><input type=\"radio\" name=\"led2\" value=\"0\" > LED 2 off");
strcat(webbuff, "<br><input type=\"radio\" name=\"led2\" value=\"1\" checked> LED 2 on");
}
if(led3==0) {
strcat(webbuff, "<p><input type=\"radio\" name=\"led3\" value=\"0\" checked> LED 3 off");
strcat(webbuff, "<br><input type=\"radio\" name=\"led3\" value=\"1\" > LED 3 on");
} else {
strcat(webbuff, "<p><input type=\"radio\" name=\"led3\" value=\"0\" > LED 3 off");
strcat(webbuff, "<br><input type=\"radio\" name=\"led3\" value=\"1\" checked> LED 3 on");
}
strcat(webbuff, "</strong><p><input type=\"submit\" value=\"send\" style=\"background: #FDC03C;");
strcat(webbuff, "background-image:-webkit-linear-gradient(top, #FDC03C, #FDD43C);");
strcat(webbuff, "background-image:linear-gradient(to bottom, #FDC03C, #FDD43C);");
strcat(webbuff, "-webkit-border-radius:12;border-radius: 12px;font-family: Arial;color:#000000;font-size:20px;padding:");
strcat(webbuff, "10px 20px 10px 20px; border:solid #103c57 3px;text-decoration: none;");
strcat(webbuff, "background: #FD9A3C;");
strcat(webbuff, "background-image:-webkit-linear-gradient(top,#FD9A3C,#8A7E1A);");
strcat(webbuff, "background-image:linear-gradient(to bottom,#FD9A3C,#8A7E1A);");
strcat(webbuff, "text-decoration:none;\"></form></div></span>");
strcat(webbuff, "</body></html>");
// end of WEB page data
bufl = strlen(webbuff); // get total page buffer length
sprintf(cmdbuff,"AT+CIPSEND=%d,%d\r\n", linkID, bufl); // send IPD link channel and buffer character length and store all into cmdbuff
timeout=200;
getcount=7;
SendCMD();
getreply();
SendWEB(); // send web page
memset(webbuff, '\0', sizeof(webbuff));
sendcheck();
}
// wait for ESP-WROOM "SEND OK" reply, then close IP to load web page
void sendcheck()
{
weberror=1;
timeout=500;
getcount=24;
t2.reset();
t2.start();
while(weberror==1 && t2.read() <5) {
getreply();
if (strstr(replybuff, "SEND OK") != NULL) {
weberror=0; // wait for valid SEND OK
}
}
if(weberror==1) { // restart connection
strcpy(cmdbuff, "AT+CIPMUX=1\r\n");
timeout=500;
getcount=10;
SendCMD();
getreply();
pc.printf(replybuff);
sprintf(cmdbuff,"AT+CIPSERVER=1,%d\r\n", port);
timeout=500;
getcount=10;
SendCMD();
getreply();
pc.printf(replybuff);
} else {
sprintf(cmdbuff, "AT+CIPCLOSE=%s\r\n",channel); // close current connection
SendCMD();
getreply();
pc.printf(replybuff);
}
t2.reset();
}
// Reads and processes GET and POST web data
void ReadWebData()
{
wait_ms(200);
wroom.attach(NULL);
counter=0;
DataRX=0;
weberror=0;
memset(webdata, '\0', sizeof(webdata));
int x = strcspn (webbuff,"+");
if(x) {
strcpy(webdata, webbuff + x);
weberror=0;
//int numMatched = sscanf(webdata,"+IPD,%d,%d:%s", &linkID, &ipdLen, type); // read linkID, ipdLen, type from webdata
sscanf(webdata,"+IPD,%d,%d:%s", &linkID, &ipdLen, type); // read linkID, ipdLen, type from webdata
if( strstr(webdata, "led1=1") != NULL ) {
led1=1;
}
if( strstr(webdata, "led1=0") != NULL ) {
led1=0;
}
if( strstr(webdata, "led2=1") != NULL ) {
led2=1;
}
if( strstr(webdata, "led2=0") != NULL ) {
led2=0;
}
if( strstr(webdata, "led3=1") != NULL ) {
led3=1;
}
if( strstr(webdata, "led3=0") != NULL ) {
led3=0;
}
sprintf(channel, "%d",linkID);
if (strstr(webdata, "GET") != NULL) {
servreq=1;
}
if (strstr(webdata, "POST") != NULL) {
servreq=1;
}
//webcounter++;
//sprintf(webcount, "%d",webcounter);
} else {
memset(webbuff, '\0', sizeof(webbuff));
wroom.attach(&callback);
weberror=1;
}
}
// Starts and restarts webserver if errors detected.
void startserver()
{
if (strstr(replybuff, "OK") != NULL) {
pc.printf("\n++++++++++ Starting Server ++++++++++\r\n");
sprintf(cmdbuff,"AT+CIPSERVER=1,%d\r\n", port);
timeout=500;
getcount=20;
SendCMD();
getreply();
pc.printf(replybuff);
wait(1);
sprintf(cmdbuff,"AT+CIPSTO=%d\r\n",SERVtimeout);
timeout=500;
getcount=50;
SendCMD();
getreply();
pc.printf(replybuff);
wait(5);
pc.printf("\n Getting Server IP \r\n");
strcpy(cmdbuff, "AT+CIFSR\r\n");
timeout=2500;
getcount=200;
while(weberror==0) {
SendCMD();
getreply();
if (strstr(replybuff, "0.0.0.0") == NULL) {
weberror=1; // wait for valid IP
}
}
pc.printf("\n Enter WEB address (IP) found below in your browser \r\n\n");
pc.printf("\n The MAC address is also shown below,if it is needed \r\n\n");
replybuff[strlen(replybuff)-1] = '\0';
sprintf(webdata,"%s", replybuff);
pc.printf(webdata);
led2=0;
bufflen=200;
counter=0;
pc.printf("\n\n++++++++++ Ready ++++++++++\r\n\n");
wroom.attach(&callback);
} else {
pc.printf("\n++++++++++ ESP-WROOM-02 error, check power/connections ++++++++++\r\n");
while(1) {}
}
t2.reset();
t2.start();
}
// ESP-WROOM-02 Command data send
void SendCMD()
{
wroom.printf("%s", cmdbuff);
}
// Large WEB buffer data send
void SendWEB()
{
int i=0;
if(wroom.writeable()) {
while(webbuff[i]!='\0') {
wroom.putc(webbuff[i]);
i++;
}
}
}
// Get Command and ESP-WROOM-02 status replies
void getreply()
{
memset(replybuff, '\0', sizeof(replybuff));
t1.reset();
t1.start();
replycount=0;
while(t1.read_ms()< timeout && replycount < getcount) {
if(wroom.readable()) {
replybuff[replycount] = wroom.getc();
replycount++;
}
}
t1.stop();
}
void WROOMconfig()
{
wait(5);
strcpy(cmdbuff,"AT\r\n");
SendCMD();
wait(1);
strcpy(cmdbuff,"AT\r\n");
SendCMD();
wait(1);
strcpy(cmdbuff,"AT\r\n");
SendCMD();
timeout=1;
getreply();
wait(1);
pc.printf("\f---------- Starting ESP-WROOM-02 Config ----------\r\n\n");
wait(3);
// set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
pc.printf("\n---------- Setting Mode ----------\r\n");
strcpy(cmdbuff, "AT+CWMODE=1\r\n");
SendCMD();
timeout=100;
getreply();
pc.printf(replybuff);
wait(2);
// set CIPMUX to 0=Single,1=Multi
pc.printf("\n---------- Setting Connection Mode ----------\r\n");
strcpy(cmdbuff, "AT+CIPMUX=1\r\n");
SendCMD();
timeout=400;
getreply();
pc.printf(replybuff);
wait(2);
pc.printf("\n---------- Listing Access Points ----------\r\n");
strcpy(cmdbuff, "AT+CWLAP\r\n");
SendCMD();
timeout=9000;
getcount=5000;
getreply();
pc.printf(replybuff);
wait(2);
pc.printf("\n---------- Connecting to AP ----------\r\n");
pc.printf("ssid = %s pwd = %s\r\n",ssid,pwd);
strcpy(cmdbuff, "AT+CWJAP=\"");
strcat(cmdbuff, ssid);
strcat(cmdbuff, "\",\"");
strcat(cmdbuff, pwd);
strcat(cmdbuff, "\"\r\n");
SendCMD();
timeout=9000;
getcount=5000;
getreply();
pc.printf(replybuff);
wait(5);
pc.printf("\n---------- Get IP's ----------\r\n");
strcpy(cmdbuff, "AT+CIFSR\r\n");
SendCMD();
timeout=400;
getreply();
pc.printf(replybuff);
wait(1);
pc.printf("\n---------- Get Connection Status ----------\r\n");
strcpy(cmdbuff, "AT+CIPSTATUS\r\n");
SendCMD();
timeout=500;
getreply();
pc.printf(replybuff);
pc.printf("ESP-WROOM saves the SSID and password settings internally\r\n");
wait(10);
}