Revision 0:6a3c0642ee31, committed 2016-05-24
- Comitter:
- kayemen
- Date:
- Tue May 24 14:37:14 2016 +0000
- Commit message:
- Working version of wifi webserver
Changed in this revision
diff -r 000000000000 -r 6a3c0642ee31 ESP8266_server/ESP8266_server.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ESP8266_server/ESP8266_server.cpp Tue May 24 14:37:14 2016 +0000
@@ -0,0 +1,54 @@
+//// Starts and restarts webserver if errors detected.
+//void startserver()
+//{
+// pc.printf("\n\n RTC time %s\r\n\n",timebuf);
+// pc.printf("++++++++++ Resetting ESP ++++++++++\r\n");
+// strcpy(cmdbuff,"AT+RST\r\n");
+// timeout=2000;getcount=600;
+// SendCMD();
+// getreply();
+// pc.printf(replybuff);
+// pc.printf("%d",count);
+// if (strstr(replybuff, "OK") != NULL) {
+// pc.printf("\n++++++++++ Starting Server ++++++++++\r\n");
+// strcpy(cmdbuff, "AT+CIPMUX=1\r\n"); // set multiple connections.
+// timeout=500;getcount=10;
+// SendCMD();
+// getreply();
+// sprintf(cmdbuff,"AT+CIPSERVER=1,%d\r\n", port);
+// timeout=500;getcount=10;
+// SendCMD();
+// getreply();
+// sprintf(cmdbuff,"AT+CIPSTO=%d\r\n",SERVtimeout);
+// timeout=500;getcount=50;
+// SendCMD();
+// getreply();
+// pc.printf("\n Getting Server IP \r\n");
+// strcpy(cmdbuff, "AT+CIFSR\r\n");
+// timeout=1000;getcount=50;
+// 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 in your browser \r\n\n");
+// replybuff[strlen(replybuff) - 8] = '\0';
+// char* IP = replybuff + 5;
+// sprintf(webdata," http://%s:%d", IP, port);
+// pc.printf(webdata);
+// led2=0;wait(2);led2=1;
+// bufflen=200;count=0;
+// pc.printf("\n\n++++++++++ Ready ++++++++++\r\n\n");
+// esp.attach(&callback);
+// }
+// else{
+// pc.printf("\n++++++++++ ESP8266 error, check power/connections ++++++++++\r\n");
+// while(1){}
+// }
+// t2.reset();t2.start();beep();
+//}
+//
+//// ESP Command data send
+//void SendCMD()
+//{
+// esp.printf("%s", cmdbuff);
+//}
\ No newline at end of file
diff -r 000000000000 -r 6a3c0642ee31 ESP8266_server/ESP8266_server.h
diff -r 000000000000 -r 6a3c0642ee31 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue May 24 14:37:14 2016 +0000
@@ -0,0 +1,391 @@
+// ESP8266 Static page WEB server to control Mbed
+
+#include "mbed.h"
+//#include "DS18B20.h"
+
+Serial pc(USBTX, USBRX);
+Serial esp(PTE0, PTE1); // tx, rx
+
+//DS18B20 thermom(A0, DS18B20::RES_12_BIT);
+
+// Standard Mbed LED definitions
+DigitalOut led1(LED_RED); // (PTB18)
+DigitalOut led2(LED_GREEN); // (PTB19)
+DigitalOut led3(LED_BLUE); // (PTD1)
+
+// Digital Out and In pins, can be configured to any suitable pin depending on Platform
+DigitalOut Out1(D7);
+DigitalOut Out2(D8);
+DigitalOut Out3(D4);
+
+DigitalIn In1(A2);
+DigitalIn In2(A3);
+DigitalIn In3(A4);
+
+PwmOut speaker(D5);
+AnalogIn BATin(A1);
+
+Timer t1;
+Timer t2;
+
+struct tm t;
+
+int bufflen, DataRX, count, getcount, replycount, servreq, timeout;
+int bufl, ipdLen, linkID, weberror, webcounter;
+float temperature, AdcIn, Ht;
+float R1=100000, R2=10000; // resistor values to give a 10:1 reduction of measured AnalogIn voltage
+char Vcc[10];
+char Temp[10];
+char temp[10];
+char webcount[8];
+char lasthit[30];
+char timebuf[30];
+char type[16];
+char type1[16];
+char channel[2];
+char cmdbuff[32];
+char replybuff[512];
+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();
+void gettime(),gettemp(),getbattery(),setRTC(),beep();
+
+// manual set RTC values
+int minute =20; // 0-59
+int hour =9; // 2-23
+int dayofmonth =20; // 1-31
+int month =2; // 1-12
+int year =15; // last 2 digits
+
+int port =8266; // set server port
+int SERVtimeout =5; // set server timeout in seconds incase link breaks.
+
+// Serial Interrupt read ESP data
+void callback() {
+ while (esp.readable()) {webbuff[count] = esp.getc();count++;}
+ if(strlen(webbuff)>bufflen){DataRX=1;}
+}
+
+int main() {
+ led1=1,led2=1,led3=1;
+ pc.baud(9600);
+ esp.baud(115200); // ESP8266 baudrate. Maximum on KLxx' is 115200, 230400 works on K20 and K22F
+ if (time(NULL) < 1420070400) {setRTC();}
+ beep();
+ startserver();
+
+ while(1){
+ if(DataRX==1){
+ ReadWebData();
+ beep();
+ if (servreq == 1 && weberror == 0){sendpage();}
+ esp.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()
+{
+ gettemp();
+ getbattery();gettime();
+
+// WEB page data
+ strcpy(webbuff, "<!DOCTYPE html>");
+ strcat(webbuff, "<html><head><title>ESP8266 Mbed</title></head>");
+ strcat(webbuff, "<body>");
+ strcat(webbuff, "<div style=\"text-align:center; background-color:#F4F4F4; color:#00AEDB;\"><h1>ESP8266 Mbed Web Controller</h1>");
+ strcat(webbuff, "Hit Count - ");
+ strcat(webbuff, webcount);
+ strcat(webbuff, "<br>Last Hit - ");
+ strcat(webbuff, lasthit);
+ strcat(webbuff, "</div><br /><hr>");
+ strcat(webbuff, "<h3>Mbed RTC Time -  ");
+ strcat(webbuff, timebuf);
+ strcat(webbuff, "</h3>\r\n");
+ strcat(webbuff, "<p><form method=\"POST\"><strong> Temperature:  <input type=\"text\" size=6 value=\"");
+ strcat(webbuff, Temp);
+ strcat(webbuff, "\"> <sup>O</sup>C <form method=\"POST\"> <strong>   Battery:  <input type=\"text\" size=4 value=\"");
+ strcat(webbuff, Vcc);
+ strcat(webbuff, "\"> </sup>V");
+ if(led1==1){strcat(webbuff, "<p><input type=\"radio\" name=\"led1\" value=\"0\" checked> Red LED off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"led1\" value=\"1\" > Red LED on");}
+ else{strcat(webbuff, "<p><input type=\"radio\" name=\"led1\" value=\"0\" > Red LED off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"led1\" value=\"1\" checked> Red LED on");}
+ if(Out1==0){strcat(webbuff, "<p><input type=\"radio\" name=\"Out1\" value=\"0\" checked> Digital Out 1 off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"Out1\" value=\"1\" > Digital Out 1 on");}
+ else{strcat(webbuff, "<p><input type=\"radio\" name=\"Out1\" value=\"0\" > Digital Out 1 off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"Out1\" value=\"1\" checked> Digital Out 1 on");}
+ if(Out2==0){strcat(webbuff, "<p><input type=\"radio\" name=\"Out2\" value=\"0\" checked> Digital Out 2 off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"Out2\" value=\"1\" > Digital Out 2 on");}
+ else{strcat(webbuff, "<p><input type=\"radio\" name=\"Out2\" value=\"0\" > Digital Out 2 off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"Out2\" value=\"1\" checked> Digital Out 2 on");}
+ if(Out3==0){strcat(webbuff, "<p><input type=\"radio\" name=\"Out3\" value=\"0\" checked> Digital Out 3 off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"Out3\" value=\"1\" > Digital Out 3 on");}
+ else{strcat(webbuff, "<p><input type=\"radio\" name=\"Out3\" value=\"0\" > Digital Out 3 off");
+ strcat(webbuff, "<br><input type=\"radio\" name=\"Out3\" value=\"1\" checked> Digital Out 3 on");}
+ if(In1==0){strcat(webbuff, "<p><input type=\"radio\" name=\"In1\" value=\"0\" > Digital In 1");}
+ else{strcat(webbuff, "<p><input type=\"radio\" name=\"In1\" value=\"1\" checked> Digital In 1");}
+ if(In2==0){strcat(webbuff, "<br><input type=\"radio\" name=\"In2\" value=\"0\" > Digital In 2");}
+ else{strcat(webbuff, "<br><input type=\"radio\" name=\"In2\" value=\"1\" checked> Digital In 2");}
+ if(In3==0){strcat(webbuff, "<br><input type=\"radio\" name=\"In3\" value=\"0\" > Digital In 3");}
+ else{strcat(webbuff, "<br><input type=\"radio\" name=\"In3\" value=\"1\" checked> Digital In 3");}
+ strcat(webbuff, "</strong><p><input type=\"submit\" value=\"send-refresh\" style=\"background: #3498db;");
+ strcat(webbuff, "background-image:-webkit-linear-gradient(top, #3498db, #2980b9);");
+ strcat(webbuff, "background-image:linear-gradient(to bottom, #3498db, #2980b9);");
+ strcat(webbuff, "-webkit-border-radius:12;border-radius: 12px;font-family: Arial;color:#ffffff;font-size:20px;padding:");
+ strcat(webbuff, "10px 20px 10px 20px; border:solid #103c57 3px;text-decoration: none;");
+ strcat(webbuff, "background: #3cb0fd;");
+ strcat(webbuff, "background-image:-webkit-linear-gradient(top,#3cb0fd,#1a5f8a);");
+ strcat(webbuff, "background-image:linear-gradient(to bottom,#3cb0fd,#1a5f8a);");
+ strcat(webbuff, "text-decoration:none;\"></form></span>");
+ strcat(webbuff, "<p/><h2>How to use:</h2><ul>");
+ strcat(webbuff, "<li>Select the Radio buttons to control the digital out pins.</li>");
+ strcat(webbuff, "<li>Click 'Send-Refresh' to send.</li>");
+ strcat(webbuff, "<li>Use the 'Send-Refresh' button to refresh the data.</li>");
+ strcat(webbuff, "</ul>");
+ 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.
+ timeout=200;getcount=7;
+ SendCMD();
+ getreply();
+ SendWEB(); // send web page
+ memset(webbuff, '\0', sizeof(webbuff));
+ sendcheck();
+}
+
+// wait for ESP "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();
+ sprintf(cmdbuff,"AT+CIPSERVER=1,%d\r\n", port);
+ timeout=500;getcount=10;
+ SendCMD();getreply();
+ }
+ else{
+ sprintf(cmdbuff, "AT+CIPCLOSE=%s\r\n",channel); // close current connection
+ SendCMD();}
+ t2.reset();
+}
+
+// Reads and processes GET and POST web data
+void ReadWebData()
+ {
+ wait_ms(200);
+ esp.attach(NULL);
+ count=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);
+ if( strstr(webdata, "led1=1") != NULL ) {led1=0;}
+ if( strstr(webdata, "led1=0") != NULL ) {led1=1;}
+ if( strstr(webdata, "Out1=1") != NULL ) {Out1=1;}
+ if( strstr(webdata, "Out1=0") != NULL ) {Out1=0;}
+ if( strstr(webdata, "Out2=1") != NULL ) {Out2=1;}
+ if( strstr(webdata, "Out2=0") != NULL ) {Out2=0;}
+ if( strstr(webdata, "Out3=1") != NULL ) {Out3=1;}
+ if( strstr(webdata, "Out3=0") != NULL ) {Out3=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));
+ esp.attach(&callback);weberror=1;
+ }
+}
+// Starts and restarts webserver if errors detected.
+void startserver()
+{
+ gettemp();gettime();
+ pc.printf("++++++++++ Resetting ESP ++++++++++\r\n");
+ strcpy(cmdbuff,"AT+RST\r\n");
+ timeout=2000;getcount=600;
+ SendCMD();
+ getreply();
+ pc.printf(replybuff);
+ pc.printf("%d",count);
+ wait(0.2);
+ if (strstr(replybuff, "OK") != NULL) {
+ strcpy(cmdbuff,"AT+CIPMODE=0\r\n");
+ timeout=2000;getcount=600;
+ SendCMD();
+ getreply();
+ wait(0.2);
+ pc.printf("CIPMODE reply %s \r\n",replybuff);
+ pc.printf("%d",count);
+
+ strcpy(cmdbuff,"AT+CWJAP=\"Eduvance_WiFi\",\"eduvance\"\r\n");
+ timeout=2000;getcount=600;
+ SendCMD();
+ getreply();
+ wait(0.2);
+ pc.printf("CWJAP reply %s \r\n",replybuff);
+ pc.printf("%d",count);
+ }
+
+ pc.printf("\n\n RTC time %s\r\n\n",timebuf);
+ pc.printf("++++++++++ Resetting ESP ++++++++++\r\n");
+ strcpy(cmdbuff,"AT+RST\r\n");
+ timeout=2000;getcount=600;
+ SendCMD();
+ getreply();
+ pc.printf(replybuff);
+ pc.printf("%d",count);
+ wait(0.2);
+ if (strstr(replybuff, "OK") != NULL) {
+// strcpy(cmdbuff,"ATE0\r\n");
+// timeout=2000;getcount=600;
+// SendCMD();
+// getreply();
+// pc.printf(replybuff);
+// pc.printf("%d",count);
+
+ strcpy(cmdbuff,"AT+CWMODE=3\r\n");
+ timeout=2000;getcount=600;
+ SendCMD();
+ getreply();
+ wait(0.2);
+ pc.printf("CWMODE reply %s \r\n", replybuff);
+// pc.printf("%d",count);
+
+
+ pc.printf("\n++++++++++ Starting Server ++++++++++\r\n");
+ strcpy(cmdbuff, "AT+CIPMUX=1\r\n"); // set multiple connections.
+ timeout=500;getcount=10;
+ SendCMD();
+ getreply();
+ wait(0.2);
+ pc.printf("CIMUX reply %s \r\n",replybuff);
+
+ sprintf(cmdbuff,"AT+CIPSERVER=1,%d\r\n", port);
+ timeout=500;getcount=10;
+ SendCMD();
+ getreply();
+ wait(0.2);
+ pc.printf("CIPSERVER reply %s \r\n",replybuff);
+
+ sprintf(cmdbuff,"AT+CIPSTO=%d\r\n",SERVtimeout);
+ timeout=500;getcount=50;
+ SendCMD();
+ getreply();
+ wait(0.2);
+ pc.printf("\n Getting Server IP \r\n");
+ strcpy(cmdbuff, "AT+CIFSR\r\n");
+ timeout=1000;getcount=50;
+ while(weberror==0){
+ SendCMD();getreply();
+ wait(0.2);
+ if (strstr(replybuff, "0.0.0.0") == NULL) {weberror=1;} // wait for valid IP
+ }
+ pc.printf("\n Enter WEB address in your browser \r\n\n");
+ replybuff[strlen(replybuff) - 8] = '\0';
+ char* IP = replybuff + 5;
+ sprintf(webdata," http://%s:%d", IP, port);
+ pc.printf(webdata);
+ led2=0;wait(2);led2=1;
+ bufflen=200;count=0;
+ pc.printf("\n\n++++++++++ Ready ++++++++++\r\n\n");
+
+ strcpy(cmdbuff,"AT+CIPSTATUS\r\n");
+ timeout=2000;getcount=600;
+ SendCMD();
+ getreply();
+ wait(1);
+ pc.printf("CIPSTATUS reply %s \r\n",replybuff);
+
+ esp.attach(&callback);
+ }
+ else{
+ pc.printf("\n++++++++++ ESP8266 error, check power/connections ++++++++++\r\n");
+ while(1){}
+ }
+ t2.reset();t2.start();beep();
+}
+// ESP Command data send
+void SendCMD()
+{
+ esp.printf("%s", cmdbuff);
+}
+// Large WEB buffer data send
+void SendWEB()
+{
+ int i=0;
+ if(esp.writeable()) {
+ while(webbuff[i]!='\0') {esp.putc(webbuff[i]);i++;}
+ }
+}
+// Get Cammand and ESP status replies
+void getreply()
+{
+ memset(replybuff, '\0', sizeof(replybuff));
+ t1.reset(); t1.start();replycount=0;
+ while(t1.read_ms()< timeout && replycount < getcount) {
+ if(esp.readable()) {
+ replybuff[replycount] = esp.getc();replycount++;
+ }
+ }
+ t1.stop();
+}
+// Analog in example
+void getbattery()
+{
+ AdcIn=BATin.read();
+ Ht = (AdcIn*3.328f*(R1+R2)/R2); // set the numeric to the exact MCU analog reference voltage for greater accuracy
+ sprintf(Vcc,"%2.3f",Ht);
+}
+// Temperature example
+void gettemp()
+{
+// temperature=thermom.GetTemperature(); // comment this out if no sensor connected
+ temperature = 21.357; // include for dummy value
+ sprintf(Temp,"%3.3f",temperature);
+}
+// Get RTC time
+void gettime()
+{
+ time_t seconds = time(NULL);
+ strftime(timebuf,50,"%H:%M:%S %a %d %b %y", localtime(&seconds));
+}
+
+void beep()
+{
+ speaker.period(1.0/2000); // 2000hz period
+ speaker = 0.5; //50% duty cycle - max volume
+ wait_ms(60);
+ speaker=0.0; // turn off audio
+}
+
+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
+}
+
+
\ No newline at end of file
diff -r 000000000000 -r 6a3c0642ee31 mbed.bld
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld Tue May 24 14:37:14 2016 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/7c328cabac7e
\ No newline at end of file