Austin Dong / Mbed 2 deprecated HUZZAHESP8266-web-control-LPC1768

For Adafruit HUZZAH ESP8266 Wi Fi chip on the mbed LPC1768. Sets up a web page server that can control a mbed onboard LEDs. Need to configure Wi Fi SSID and PASSWORD first with another program (one time only). See https://developer.mbed.org/users/ausdong/notebook/using-the-adafruit-huzzah-esp8266-to-add-wi-fi-to-/ .

Dependencies:   mbed

Fork of ESP8266-WEB-Mbed-LPC1768-Controller by jim hamblen

Diff: main.cpp

Revision:
1:71ed1afbf344
Parent:
0:e2a155f50119
Child:
2:d4c6bc0f2dc4
--- a/main.cpp	Sat Feb 14 23:53:25 2015 +0000
+++ b/main.cpp	Sun Feb 15 12:05:58 2015 +0000
@@ -24,8 +24,10 @@
 
 DS18B20 thermom(PTB0, DS18B20::RES_12_BIT);
 
-Timer t;
 Timer t1;
+Timer t2;
+
+struct tm t;
 
 int buflen, DataRX, count, ended, servreq, timeout;
 int bufl, ipdLen, linkID, weberror;
@@ -43,8 +45,15 @@
 char buf[2048];     // Currently using 1407 characters, Increase this if more web page data added
 
 void SendCMD(),getreply(),ReadWebData(),startserver(),sendpage(),SendWEB(),sendcheck();
-void gettime(),gettemp(),getbattery();
+void gettime(),gettemp(),getbattery(),setRTC();
 
+// manual set RTC values
+int minute      =58;    // 0-59
+int hour        =11;    // 2-23
+int dayofmonth  =15;    // 1-31
+int month       =2;     // 1-12
+int year        =15;    // last 2 digits
+ 
 // Serial Interrupt read ESP data
 void callback() {    
     while (esp.readable()) {buf[count] = esp.getc();count++;}
@@ -55,7 +64,7 @@
     led1=1,led2=1,led3=1;
     pc.baud(115200);
     esp.baud(115200);   // ESP8266 baudrate.
-    if (time(NULL) < 1420070400) {set_time(1420070400);}    
+    if (time(NULL) < 1420070400) {setRTC();}    
     
     startserver();
       
@@ -134,12 +143,12 @@
 void sendcheck()
 {
     timeout=200;
-    weberror=1;t1.reset();t1.start();
-    while(weberror==1 && t1.read() <10){
+    weberror=1;t2.reset();t2.start();
+    while(weberror==1 && t2.read() <10){
         getreply();
         if (strstr(buf, "SEND OK") != NULL) {weberror=0;}  // wait for valid SEND OK
         }
-    t1.stop();
+    t2.stop();
     if(weberror==1){
         pc.printf("\n\n\n ++++++++++ WEB Connect Error, restarting ...   ++++++++++\n\n");
         NVIC_SystemReset();}     
@@ -177,36 +186,45 @@
 void startserver()
 {
     esp.attach(NULL);
-    pc.printf("++++++++++ Resetting ESP ++++++++++\r\n");
     wait(1);
+    gettime();
+    pc.printf("\n\n RTC time   %s\r\n\n",timebuf);
+    pc.printf("++++++++++ Resetting ESP ++++++++++\r\n");  
     strcpy(snd,"AT+RST\r\n");
     SendCMD();
-    pc.printf("\n++++++++++ Starting Server ++++++++++\r\n"); 
-    wait(3);
-    strcpy(snd, "AT+CIPMUX=1\r\n");  // set multiple connections. 
-    SendCMD();
-    wait_ms(50);  
-    strcpy(snd, "AT+CIPSERVER=1,80\r\n"); // set to port 80, you can change this to what you want.
-    SendCMD();
-    wait_ms(200); 
-    pc.printf("\n Getting Server IP \r\n"); 
-    strcpy(snd, "AT+CIFSR\r\n");
-    timeout=500;
-    while(weberror==0){
-        SendCMD();getreply();
-        if (strstr(buf, "0.0.0.0") == NULL) {weberror=1;}  // wait for valid IP
+    timeout=2000;
+    getreply();
+    if (strstr(buf, "ready") != NULL) {
+        pc.printf("\n++++++++++ Starting Server ++++++++++\r\n");
+        strcpy(snd, "AT+CIPMUX=1\r\n");  // set multiple connections. 
+        SendCMD();
+        wait_ms(50);  
+        strcpy(snd, "AT+CIPSERVER=1,80\r\n"); // set to port 80, you can change this to what you want.
+        SendCMD();
+        wait_ms(200); 
+        pc.printf("\n Getting Server IP \r\n"); 
+        strcpy(snd, "AT+CIFSR\r\n");
+        timeout=500;
+        while(weberror==0){
+            SendCMD();getreply();
+            if (strstr(buf, "0.0.0.0") == NULL) {weberror=1;}  // wait for valid IP
+            }
+        pc.printf("\n Enter WEB address in your browser \r\n\n");
+        buf[strlen(buf) - 8] = '\0';                
+        char* IP = buf + 5; 
+        sprintf(snd,"   http://%s:80", IP);
+        pc.printf(snd); 
+        while (esp.readable()){esp.getc();}    
+        buflen=200;count=0;
+        memset(buf, '\0', sizeof(buf));    
+        led2=0;wait(2);led2=1;
+        pc.printf("\n\n++++++++++ Ready ++++++++++\r\n\n");
+        esp.attach(&callback);
         }
-    pc.printf("\n Enter WEB address in your browser \r\n\n");
-    buf[strlen(buf) - 8] = '\0';                
-    char* IP = buf + 5; 
-    sprintf(snd,"   http://%s:80", IP);
-    pc.printf(snd); 
-    while (esp.readable()){esp.getc();}    
-    buflen=200;count=0;
-    memset(buf, '\0', sizeof(buf));    
-    led2=0;wait(2);led2=1;
-    pc.printf("\n\n++++++++++ Ready ++++++++++\r\n\n");
-    esp.attach(&callback);  
+        else{
+            pc.printf("\n++++++++++ ESP8266 error, check power/connections ++++++++++\r\n");
+            while(1){}
+            }  
 }    
 // ESP Command data send
 void SendCMD()
@@ -225,14 +243,14 @@
 void getreply()
 {    
     memset(buf, '\0', sizeof(buf));
-    t.start();
+    t1.start();
     ended=0;count=0;
     while(!ended) {
         if(esp.readable()) {
             buf[count] = esp.getc();count++;
             }
-        if(t.read_ms() > timeout) {
-                ended = 1;t.stop();t.reset();
+        if(t1.read_ms() > timeout) {
+                ended = 1;t1.stop();t1.reset();
             }
         }   
 }
@@ -257,3 +275,13 @@
     strftime(timebuf,50,"%H:%M:%S %a %d %b %y", localtime(&seconds));               
 }
 
+void setRTC()
+{
+            t.tm_sec = (0);             // 0-59
+            t.tm_min = (minute);        // 0-59
+            t.tm_hour = (hour);         // 0-23
+            t.tm_mday = (dayofmonth);   // 1-31
+            t.tm_mon = (month-1);       // 0-11  "0" = Jan, -1 added for Mbed RCT clock format
+            t.tm_year = ((year)+100);   // year since 1900,  current DCF year + 100 + 1900 = correct year
+            set_time(mktime(&t));       // set RTC clock                
+}