Revision 40:52621e958d2c, committed 2017-07-11

Comitter:

jortronm

Date:

Tue Jul 11 12:43:47 2017 +0000

Parent:

39:bcfaadc319d3

Commit message:

Basic set up to connect to WiFi using mDot and ESP8266-12

Changed in this revision

--- a/main.cpp	Thu Jun 22 09:00:02 2017 +0100
+++ b/main.cpp	Tue Jul 11 12:43:47 2017 +0000
@@ -1,12 +1,179 @@
 #include "mbed.h"
 
-DigitalOut led1(LED1);
+//Serial ports definition
+int BaudRate =115200; //ESP8266
+Serial pc(USBTX, USBRX,BaudRate); // tx, rx (PA_9,PA_10)
+Serial esp(PA_2,PA_3,BaudRate); // tx, rx
+
+//Pins definitiom
+DigitalOut led1(XBEE_RSSI); //XBEE_RSSI PA_8
+DigitalOut led2(PC_9); //Second LED
+DigitalOut reset(PB_0); //Pin to reset the ESP
+
+//Variables definition
+Timer t;
+int  count,ended,timeout;
+char buf[1024];
+char snd[255];
+char ssid[32] = "Jorgie's iPhone";     // enter WiFi router ssid inside the quotes
+char pwd [32] = "jorge123"; // enter WiFi router password inside the quotes
+
+
+void SendCMD(),getreply(),ESPconfig(),ESPsetbaudrate(),ESP_HardwareReset(),ESPconnect();
+
+
+int main()
+{
+    ESP_HardwareReset(); //ESP8266 Hardware Reset
+//ESPsetbaudrate();   //Difines ESP8266 baudrate !!!!!!!!!!!!!!!!!Currently not working!!!!!!!!!!!!!!!!!
+//ESPconfig(); //ESP8266 configuration
+    ESPconnect();
+}
+
+void ESPconnect()
+{
+    pc.printf("\n---------- Connecting to AP ----------\r\n");
+    pc.printf("ssid = %s   pwd = %s\r\n",ssid,pwd);
+    strcpy(snd, "AT+CWJAP=\"");
+    strcat(snd, ssid);
+    strcat(snd, "\",\"");
+    strcat(snd, pwd);
+    strcat(snd, "\"\r\n");
+    SendCMD();
+    timeout=10;
+    getreply();
+    pc.printf(buf);
+    wait(5);
+
+    pc.printf("\n---------- Get IP's ----------\r\n");
+    strcpy(snd, "AT+CIFSR\r\n");
+    SendCMD();
+    timeout=3;
+    getreply();
+    pc.printf(buf);
+    wait(1);
+
+    pc.printf("\n---------- Get Connection Status ----------\r\n");
+    strcpy(snd, "AT+CIPSTATUS\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buf);
+
+    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 ESP_HardwareReset()
+{
+    reset=0; //hardware reset for 8266
+    pc.printf("\f\n\r-------------ESP8266 Hardware Reset-------------\n\r");
+    pc.printf("Done \n\r");
+    wait(0.5);
+    reset=1;
+    timeout=2;
+    getreply();
+}
+
+
+void ESPsetbaudrate()
+{
+    pc.printf("\f\n\r-------------ESP8266 BaudRait Definition-------------\n\r");
+    char TempString1[50];
+    sprintf(TempString1,"AT+CIOBAUD=%d,\r\n",BaudRate);
+    strcpy(snd, TempString1);   // change the numeric value to the required baudrate
+    SendCMD();
+}
 
-// main() runs in its own thread in the OS
-int main() {
-    while (true) {
-        led1 = !led1;
-        wait(0.5);
+
+void ESPconfig()
+{
+    wait(5);
+    strcpy(snd,"AT\r\n");
+    SendCMD();
+    timeout=2;
+    getreply();
+    pc.printf(buf);
+    wait(1);
+
+    pc.printf("\f---------- Starting ESP Config ----------\r\n\n");
+    pc.printf("---------- Reset & get Firmware ----------\r\n");
+    strcpy(snd,"AT+RST\r\n");
+    SendCMD();
+    timeout=5;
+    getreply();
+    pc.printf(buf);
+    wait(2);
+
+    pc.printf("\n---------- Get Version ----------\r\n");
+    strcpy(snd,"AT+GMR\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(3);
+
+    // Currently not working  !!!!!!!!!!!!!!!!!Currently not working!!!!!!!!!!!!!!!!!
+    pc.printf("\n---------- Get UART Definition ----------\r\n");
+    strcpy(snd,"AT+CIOBAUD?\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(3);
+
+    // set CWMODE to 1=Station,2=AP,3=BOTH, default mode 1 (Station)
+    pc.printf("\n---------- Setting Mode ----------\r\n");
+    strcpy(snd, "AT+CWMODE=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2);
+
+    // set CIPMUX to 0=Single,1=Multi
+    pc.printf("\n---------- Setting Connection Mode ----------\r\n");
+    strcpy(snd, "AT+CIPMUX=1\r\n");
+    SendCMD();
+    timeout=4;
+    getreply();
+    pc.printf(buf);
+    wait(2);
+
+    pc.printf("\n---------- Listing Access Points ----------\r\n");
+    strcpy(snd, "AT+CWLAP\r\n");
+    SendCMD();
+    timeout=15;
+    getreply();
+    pc.printf(buf);
+    wait(2);
+}
+
+
+void SendCMD()
+{
+    pc.printf("%s", snd);
+    esp.printf("%s", snd);
+}
+
+void getreply()
+{
+    memset(buf, '\0', sizeof(buf));
+    t.start();
+    ended=0;
+    count=0;
+    while(!ended) {
+        if(esp.readable()) {
+            buf[count] = esp.getc();
+            count++;
+        }
+        if(t.read() > timeout) {
+            ended = 1;
+            t.stop();
+            t.reset();
+        }
     }
 }
-