ECE4180 / Mbed 2 deprecated ESP8266-configuration-mbed-LPC1768

wifi

Dependencies:   mbed

Fork of ESP8266-configuration-mbed-LPC1768 by jim hamblen

main.cpp@6:3dcdb8471df1, 2015-10-08 (annotated)

Committer:
ycai47
Date:
Thu Oct 08 01:00:10 2015 +0000
Revision:
6:3dcdb8471df1
Parent:
5:9f46b8cdd469 
wifi

Who changed what in which revision?

UserRevisionLine numberNew contents of line
star297 0:5ebf44bd3694 1 #include "mbed.h"
star297 0:5ebf44bd3694 2
star297 0:5ebf44bd3694 3 Serial pc(USBTX, USBRX);
4180_1 4:f40e7eb1ba1e 4 Serial esp(p28, p27); // tx, rx
4180_1 4:f40e7eb1ba1e 5 DigitalOut reset(p26);
star297 0:5ebf44bd3694 6 Timer t;
star297 0:5ebf44bd3694 7
star297 0:5ebf44bd3694 8 int count,ended,timeout;
star297 0:5ebf44bd3694 9 char buf[1024];
star297 0:5ebf44bd3694 10 char snd[255];
star297 0:5ebf44bd3694 11
ycai47 6:3dcdb8471df1 12 char ssid[32] = "Yushan"; // enter WiFi router ssid inside the quotes
ycai47 6:3dcdb8471df1 13 char pwd [32] = "CYS2009sy"; // enter WiFi router password inside the quotes
star297 0:5ebf44bd3694 14
star297 0:5ebf44bd3694 15 void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate();
star297 0:5ebf44bd3694 16
star297 0:5ebf44bd3694 17
4180_1 4:f40e7eb1ba1e 18 int main()
4180_1 4:f40e7eb1ba1e 19 {
4180_1 4:f40e7eb1ba1e 20 reset=0; //hardware reset for 8266
ycai47 6:3dcdb8471df1 21 pc.baud(9600); // set what you want here depending on your terminal program speed
4180_1 4:f40e7eb1ba1e 22 pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r");
4180_1 4:f40e7eb1ba1e 23 wait(0.5);
4180_1 4:f40e7eb1ba1e 24 reset=1;
4180_1 4:f40e7eb1ba1e 25 timeout=2;
4180_1 4:f40e7eb1ba1e 26 getreply();
4180_1 4:f40e7eb1ba1e 27
4180_1 4:f40e7eb1ba1e 28 esp.baud(115200); // change this to the new ESP8266 baudrate if it is changed at any time.
4180_1 4:f40e7eb1ba1e 29
star297 0:5ebf44bd3694 30 //ESPsetbaudrate(); //****************** include this routine to set a different ESP8266 baudrate ******************
star297 0:5ebf44bd3694 31
star297 0:5ebf44bd3694 32 ESPconfig(); //****************** include Config to set the ESP8266 configuration ***********************
4180_1 4:f40e7eb1ba1e 33
4180_1 4:f40e7eb1ba1e 34
4180_1 4:f40e7eb1ba1e 35
4180_1 4:f40e7eb1ba1e 36 // continuosly get AP list and IP
4180_1 4:f40e7eb1ba1e 37 while(1) {
star297 3:14e33fec26c3 38 pc.printf("\n---------- Listing Acces Points ----------\r\n");
star297 3:14e33fec26c3 39 strcpy(snd, "AT+CWLAP\r\n");
star297 3:14e33fec26c3 40 SendCMD();
4180_1 4:f40e7eb1ba1e 41 timeout=15;
4180_1 4:f40e7eb1ba1e 42 getreply();
star297 3:14e33fec26c3 43 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 44 wait(2);
4180_1 4:f40e7eb1ba1e 45 pc.printf("\n---------- Get IP and MAC ----------\r\n");
star297 3:14e33fec26c3 46 strcpy(snd, "AT+CIFSR\r\n");
star297 3:14e33fec26c3 47 SendCMD();
4180_1 4:f40e7eb1ba1e 48 timeout=10;
4180_1 4:f40e7eb1ba1e 49 getreply();
star297 3:14e33fec26c3 50 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 51 wait(2);
4180_1 4:f40e7eb1ba1e 52 }
4180_1 4:f40e7eb1ba1e 53
star297 0:5ebf44bd3694 54 }
star297 0:5ebf44bd3694 55
star297 0:5ebf44bd3694 56 // Sets new ESP8266 baurate, change the esp.baud(xxxxx) to match your new setting once this has been executed
star297 0:5ebf44bd3694 57 void ESPsetbaudrate()
star297 0:5ebf44bd3694 58 {
star297 0:5ebf44bd3694 59 strcpy(snd, "AT+CIOBAUD=115200\r\n"); // change the numeric value to the required baudrate
4180_1 4:f40e7eb1ba1e 60 SendCMD();
4180_1 4:f40e7eb1ba1e 61 }
star297 0:5ebf44bd3694 62
star297 0:5ebf44bd3694 63 // +++++++++++++++++++++++++++++++++ This is for ESP8266 config only, run this once to set up the ESP8266 +++++++++++++++
star297 0:5ebf44bd3694 64 void ESPconfig()
star297 0:5ebf44bd3694 65 {
4180_1 4:f40e7eb1ba1e 66 wait(5);
4180_1 4:f40e7eb1ba1e 67 strcpy(snd,"AT\r\n");
4180_1 4:f40e7eb1ba1e 68 SendCMD();
4180_1 4:f40e7eb1ba1e 69 wait(1);
4180_1 4:f40e7eb1ba1e 70 strcpy(snd,"AT\r\n");
4180_1 4:f40e7eb1ba1e 71 SendCMD();
4180_1 4:f40e7eb1ba1e 72 wait(1);
4180_1 4:f40e7eb1ba1e 73 strcpy(snd,"AT\r\n");
4180_1 4:f40e7eb1ba1e 74 SendCMD();
4180_1 4:f40e7eb1ba1e 75 timeout=1;
4180_1 4:f40e7eb1ba1e 76 getreply();
4180_1 4:f40e7eb1ba1e 77 wait(1);
4180_1 4:f40e7eb1ba1e 78 pc.printf("\f---------- Starting ESP Config ----------\r\n\n");
star297 0:5ebf44bd3694 79
star297 0:5ebf44bd3694 80 pc.printf("---------- Reset & get Firmware ----------\r\n");
star297 0:5ebf44bd3694 81 strcpy(snd,"AT+RST\r\n");
star297 0:5ebf44bd3694 82 SendCMD();
4180_1 4:f40e7eb1ba1e 83 timeout=5;
star297 0:5ebf44bd3694 84 getreply();
star297 0:5ebf44bd3694 85 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 86
4180_1 4:f40e7eb1ba1e 87 wait(2);
4180_1 4:f40e7eb1ba1e 88
star297 0:5ebf44bd3694 89 pc.printf("\n---------- Get Version ----------\r\n");
star297 0:5ebf44bd3694 90 strcpy(snd,"AT+GMR\r\n");
star297 0:5ebf44bd3694 91 SendCMD();
4180_1 4:f40e7eb1ba1e 92 timeout=4;
star297 0:5ebf44bd3694 93 getreply();
4180_1 4:f40e7eb1ba1e 94 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 95
4180_1 4:f40e7eb1ba1e 96 wait(3);
4180_1 4:f40e7eb1ba1e 97
star297 0:5ebf44bd3694 98 // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
star297 0:5ebf44bd3694 99 pc.printf("\n---------- Setting Mode ----------\r\n");
star297 0:5ebf44bd3694 100 strcpy(snd, "AT+CWMODE=1\r\n");
star297 0:5ebf44bd3694 101 SendCMD();
4180_1 4:f40e7eb1ba1e 102 timeout=4;
star297 0:5ebf44bd3694 103 getreply();
star297 0:5ebf44bd3694 104 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 105
4180_1 4:f40e7eb1ba1e 106 wait(2);
4180_1 4:f40e7eb1ba1e 107
4180_1 4:f40e7eb1ba1e 108 // set CIPMUX to 0=Single,1=Multi
star297 2:c5515c7eba46 109 pc.printf("\n---------- Setting Connection Mode ----------\r\n");
4180_1 4:f40e7eb1ba1e 110 strcpy(snd, "AT+CIPMUX=1\r\n");
star297 2:c5515c7eba46 111 SendCMD();
4180_1 4:f40e7eb1ba1e 112 timeout=4;
star297 2:c5515c7eba46 113 getreply();
star297 2:c5515c7eba46 114 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 115
4180_1 4:f40e7eb1ba1e 116 wait(2);
4180_1 4:f40e7eb1ba1e 117
4180_1 4:f40e7eb1ba1e 118 pc.printf("\n---------- Listing Access Points ----------\r\n");
star297 0:5ebf44bd3694 119 strcpy(snd, "AT+CWLAP\r\n");
star297 0:5ebf44bd3694 120 SendCMD();
4180_1 4:f40e7eb1ba1e 121 timeout=15;
4180_1 4:f40e7eb1ba1e 122 getreply();
star297 0:5ebf44bd3694 123 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 124
4180_1 4:f40e7eb1ba1e 125 wait(2);
4180_1 4:f40e7eb1ba1e 126
star297 0:5ebf44bd3694 127 pc.printf("\n---------- Connecting to AP ----------\r\n");
star297 0:5ebf44bd3694 128 pc.printf("ssid = %s pwd = %s\r\n",ssid,pwd);
star297 0:5ebf44bd3694 129 strcpy(snd, "AT+CWJAP=\"");
star297 0:5ebf44bd3694 130 strcat(snd, ssid);
star297 0:5ebf44bd3694 131 strcat(snd, "\",\"");
star297 0:5ebf44bd3694 132 strcat(snd, pwd);
4180_1 4:f40e7eb1ba1e 133 strcat(snd, "\"\r\n");
star297 0:5ebf44bd3694 134 SendCMD();
4180_1 4:f40e7eb1ba1e 135 timeout=10;
4180_1 4:f40e7eb1ba1e 136 getreply();
star297 0:5ebf44bd3694 137 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 138
star297 0:5ebf44bd3694 139 wait(5);
4180_1 4:f40e7eb1ba1e 140
4180_1 4:f40e7eb1ba1e 141 pc.printf("\n---------- Get IP's ----------\r\n");
star297 0:5ebf44bd3694 142 strcpy(snd, "AT+CIFSR\r\n");
star297 0:5ebf44bd3694 143 SendCMD();
4180_1 4:f40e7eb1ba1e 144 timeout=3;
4180_1 4:f40e7eb1ba1e 145 getreply();
star297 0:5ebf44bd3694 146 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 147
star297 3:14e33fec26c3 148 wait(1);
4180_1 4:f40e7eb1ba1e 149
4180_1 4:f40e7eb1ba1e 150 pc.printf("\n---------- Get Connection Status ----------\r\n");
star297 3:14e33fec26c3 151 strcpy(snd, "AT+CIPSTATUS\r\n");
star297 3:14e33fec26c3 152 SendCMD();
4180_1 4:f40e7eb1ba1e 153 timeout=5;
4180_1 4:f40e7eb1ba1e 154 getreply();
4180_1 4:f40e7eb1ba1e 155 pc.printf(buf);
4180_1 4:f40e7eb1ba1e 156
4180_1 4:f40e7eb1ba1e 157 pc.printf("\n\n\n If you get a valid (non zero) IP, ESP8266 has been set up.\r\n");
star297 0:5ebf44bd3694 158 pc.printf(" Run this if you want to reconfig the ESP8266 at any time.\r\n");
4180_1 5:9f46b8cdd469 159 pc.printf(" It saves the SSID and password settings internally\r\n");
4180_1 4:f40e7eb1ba1e 160 wait(10);
4180_1 4:f40e7eb1ba1e 161 }
star297 0:5ebf44bd3694 162
star297 0:5ebf44bd3694 163 void SendCMD()
4180_1 4:f40e7eb1ba1e 164 {
4180_1 4:f40e7eb1ba1e 165 esp.printf("%s", snd);
4180_1 4:f40e7eb1ba1e 166 }
star297 0:5ebf44bd3694 167
star297 0:5ebf44bd3694 168 void getreply()
4180_1 4:f40e7eb1ba1e 169 {
star297 0:5ebf44bd3694 170 memset(buf, '\0', sizeof(buf));
star297 0:5ebf44bd3694 171 t.start();
4180_1 4:f40e7eb1ba1e 172 ended=0;
4180_1 4:f40e7eb1ba1e 173 count=0;
star297 0:5ebf44bd3694 174 while(!ended) {
star297 0:5ebf44bd3694 175 if(esp.readable()) {
4180_1 4:f40e7eb1ba1e 176 buf[count] = esp.getc();
4180_1 4:f40e7eb1ba1e 177 count++;
4180_1 4:f40e7eb1ba1e 178 }
star297 0:5ebf44bd3694 179 if(t.read() > timeout) {
4180_1 4:f40e7eb1ba1e 180 ended = 1;
4180_1 4:f40e7eb1ba1e 181 t.stop();
4180_1 4:f40e7eb1ba1e 182 t.reset();
4180_1 4:f40e7eb1ba1e 183 }
4180_1 4:f40e7eb1ba1e 184 }
4180_1 4:f40e7eb1ba1e 185 }