ESP8266 / Mbed 2 deprecated ESP8266_WebSockets_HelloWorld

ESP8266 web sockets

Dependencies:   ESP8266Interface WebSocketClient mbed

Fork of ESP8266_Test by ESP8266

This repository has been superceded

This project has moved to https://developer.mbed.org/teams/ESP8266/code/mbed-os-example-esp8266/

Introduction

This is a basic Hello World program for interfacing the ESP8266 chip with websockets. It will connect and send a message to this web socket server location: 192.168.1.20 : 8888.

You can find the python server code here.

ESP8266_WebSockets_HelloWorld

  1. Initiliaze ESP8266 with DHCP enabled
  2. Create a socketed connection with the above server
  3. It will send this message "n WebSocket Hello World over wifi", where n is the number of times it has sent.
  4. Websocket server echoes the string sent (backwards)

You can view the debug messages of this program by using a serial terminal set to 115200 baud.

Diff: main.cpp

Revision:
4:d02fdd139307
Parent:
3:5175e53017e4
Child:
6:9ca92d1d90dd
--- a/main.cpp	Tue Apr 28 20:18:04 2015 +0000
+++ b/main.cpp	Wed Apr 29 22:43:10 2015 +0000
@@ -11,8 +11,6 @@
 bool UDP_blocking = false;
 unsigned int UDP_timeout = 100;
 
-uint8_t macbytes[6] = {0};
-char MAC[20] = "665544332211";
 
 int main()
 {
@@ -40,20 +38,19 @@
 //
 //    printf("\r\nset blocking option");
 //    server.set_blocking(UDP_blocking, UDP_timeout);
-    wifi.sendCommand("AT+CWJAP?", NULL, NULL, 1000);
-
-    check = wifi.is_connected();
-    pc.printf("\r\nwifi connected: %d,\r\n",check);
 
-    char * ip = NULL;
-    ip = wifi.getIPAddress();
-    pc.printf("\n\rIP = %s \n\r",ip);
+    if(wifi.is_connected()) {
+        pc.printf("\r\nConnected to Wifi!\r\n");
+    } else {
+        pc.printf("\r\nFailed to Connect to Wifi...\r\n");
+    }
 
-    pc.printf("\r\nStarting while1 loop\r\n");
+    pc.printf("\n\rIP = %s \n\r",wifi.getIPAddress());
+
+    pc.printf("\r\n#####Starting Interactive Terminal:#####\r\n");
     while(1) {
         if(pc.readable()) {
             char c = pc.getc();
-            //pc.putc(c); // echo character back to computer for sanity
             wifi.putc(c);
         }
         if(wifi.readable()) {