jim hamblen / Mbed 2 deprecated ESP8266-configuration-mbed-LPC1768

Setup and test the ESP8266 Wi Fi SOC from Sparkfun. Sets SSID and PASSWORD and prints status messages. For use on mbed LPC1768. Also reports IP and MAC address. See https://developer.mbed.org/users/4180_1/notebook/using-the-esp8266-with-the-mbed-lpc1768/

Dependencies:   mbed

Fork of ESP8266-configuaration-baudrate by Paul Staron

main.cpp@5:9f46b8cdd469, 2015-08-28 (annotated)

Committer:
4180_1
Date:
Fri Aug 28 01:21:15 2015 +0000
Revision:
5:9f46b8cdd469
Parent:
4:f40e7eb1ba1e 
ver 1.0

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
4180_1 5:9f46b8cdd469 12 char ssid[32] = "mySSID"; // enter WiFi router ssid inside the quotes
4180_1 5:9f46b8cdd469 13 char pwd [32] = "myPASSWORD"; // 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
star297 2:c5515c7eba46 21 pc.baud(115200); // 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 }