Diff: main.cpp

Revision:

0:c265e9b31b1d

Child:

1:cd76b77e35a4

diff -r 000000000000 -r c265e9b31b1d main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 26 08:01:46 2019 +0000
@@ -0,0 +1,185 @@
+#include "mbed.h"
+ 
+Serial pc(USBTX, USBRX);
+Serial esp(p28, p27); // tx, rx
+DigitalOut reset(p26);
+Timer t;
+ 
+int  counter,ended,timeout;
+char buffer[1024];
+char str[255];
+ 
+char ssid[32] = "accesspoint";     // enter WiFi router ssid inside the quotes
+char pwd [32] = "password"; // enter WiFi router password inside the quotes
+ 
+void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate();
+ 
+ 
+int main()
+{
+    reset=0; //hardware reset for 8266
+    pc.baud(9600);  // set what you want here depending on your terminal program speed
+    pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r");
+    wait(0.5);
+    reset=1;
+    timeout=2;
+    getreply();
+ 
+    esp.baud(115200);   // change this to the new ESP8266 baudrate if it is changed at any time.
+ 
+    //ESPsetbaudrate();   //******************  include this routine to set a different ESP8266 baudrate  ******************
+ 
+    ESPconfig();        //******************  include Config to set the ESP8266 configuration  ***********************
+ 
+ 
+ 
+    // continuosly get AP list and IP
+    while(1) {
+        pc.printf("\n---------- Listing Acces Points ----------\r\n");
+        strcpy(str, "AT+CWLAP\r\n");
+        SendCMD();
+        timeout=15;
+        getreply();
+        pc.printf(buffer);
+        wait(2);
+        pc.printf("\n---------- Get IP and MAC ----------\r\n");
+        strcpy(str, "AT+CIFSR\r\n");
+        SendCMD();
+        timeout=10;
+        getreply();
+        pc.printf(buffer);
+        wait(2);
+    }
+ 
+}
+ 
+// Sets new ESP8266 baurate, change the esp.baud(xxxxx) to match your new setting once this has been executed
+void ESPsetbaudrate()
+{
+    strcpy(str, "AT+CIOBAUD=115200\r\n");   // change the numeric value to the required baudrate
+    SendCMD();
+}
+ 
+//  +++++++++++++++++++++++++++++++++ This is for ESP8266 config only, run this once to set up the ESP8266 +++++++++++++++
+void ESPconfig()
+{
+    wait(5);
+    strcpy(str,"AT\r\n");
+    SendCMD();
+    wait(1);
+    strcpy(str,"AT\r\n");
+    SendCMD();
+    wait(1);
+    strcpy(str,"AT\r\n");
+    SendCMD();
+    timeout=1;
+    getreply();
+    wait(1);
+    pc.printf("\f---------- Starting ESP Config ----------\r\n\n");
+ 
+    pc.printf("---------- Reset & get Firmware ----------\r\n");
+    strcpy(str,"AT+RST\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Get Version ----------\r\n");
+    strcpy(str,"AT+GMR\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(3);
+ 
+    // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
+    pc.printf("\n---------- Setting Mode ----------\r\n");
+    strcpy(str, "AT+CWMODE=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(2);
+ 
+    // set CIPMUX to 0=Single,1=Multi
+    pc.printf("\n---------- Setting Connection Mode ----------\r\n");
+    strcpy(str, "AT+CIPMUX=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Listing Access Points ----------\r\n");
+    strcpy(str, "AT+CWLAP\r\n");
+    SendCMD();
+    timeout=15;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(2);
+ 
+    pc.printf("\n---------- Connecting to AP ----------\r\n");
+    pc.printf("ssid = %s   pwd = %s\r\n",ssid,pwd);
+    strcpy(str, "AT+CWJAP=\"");
+    strcat(str, ssid);
+    strcat(str, "\",\"");
+    strcat(str, pwd);
+    strcat(str, "\"\r\n");
+    SendCMD();
+    timeout=10;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(5);
+ 
+    pc.printf("\n---------- Get IP's ----------\r\n");
+    strcpy(str, "AT+CIFSR\r\n");
+    SendCMD();
+    timeout=3;
+    getreply();
+    pc.printf(buffer);
+ 
+    wait(1);
+ 
+    pc.printf("\n---------- Get Connection Status ----------\r\n");
+    strcpy(str, "AT+CIPSTATUS\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buffer);
+ 
+    pc.printf("\n\n\n  If you get a valid (non zero) IP, ESP8266 has been set up.\r\n");
+    pc.printf("  Run this if you want to reconfig the ESP8266 at any time.\r\n");
+    pc.printf("  It saves the SSID and password settings internally\r\n");
+    wait(10);
+}
+ 
+void SendCMD()
+{
+    esp.printf("%s", str);
+}
+ 
+void getreply()
+{
+    memset(buffer, '\0', sizeof(buffer));
+    t.start();
+    ended=0;
+    counter=0;
+    while(!ended) {
+        if(esp.readable()) {
+            buffer[counter] = esp.getc();
+            counter++;
+        }
+        if(t.read() > timeout) {
+            ended = 1;
+            t.stop();
+            t.reset();
+        }
+    }
+}
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