ESP8266 web sockets
Dependencies: ESP8266Interface WebSocketClient mbed
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This repository has been superceded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
- Initiliaze ESP8266 with DHCP enabled
- Create a socketed connection with the above server
- It will send this message "n WebSocket Hello World over wifi", where n is the number of times it has sent.
- 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
diff -r 5175e53017e4 -r d02fdd139307 main.cpp --- 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()) {