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This repository has been superceded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:
14:4ee468971ae0
Parent:
13:5f2bb0dc134b
diff -r 5f2bb0dc134b -r 4ee468971ae0 main.cpp
--- a/main.cpp	Wed Jun 03 19:03:50 2015 +0000
+++ b/main.cpp	Mon Jun 08 21:32:56 2015 +0000
@@ -7,13 +7,11 @@
 
 
 ESP8266Interface wifi(D1,D0,D10,"demossid","password",115200); // TX,RX,Reset,SSID,Password,Baud
-RawSerial pc(USBTX, USBRX); // tx, rx
  
 int main() {
-    pc.baud(115200);
     wifi.init(); //Reset
     wifi.connect(); //Use DHCP
-    pc.printf("IP Address is %s\n", wifi.getIPAddress());
+    printf("IP Address is %s\n", wifi.getIPAddress());
     
     Websocket ws("ws://192.168.1.20:8888/ws");
     
@@ -26,6 +24,7 @@
         for(int i=0; i<0x7fffffff; ++i) {
             // string with a message
             sprintf(str, "%d WebSocket Hello World over wifi", i);
+            printf("send: %s\n",str);
             ws.send(str);
         
             // clear the buffer and wait a sec...
@@ -34,7 +33,7 @@
         
             // websocket server should echo whatever we sent it
             if (ws.read(str)) {
-                pc.printf("rcv'd: %s\n", str);
+                printf("rcv'd: %s\n", str);
             }
         }
     }