![](/media/cache/group/MI_Logo_Small_Pos_RGB.gif.50x50_q85.png)
This program listens to a websocket and when the server sends the appropriate ASCII combinations through the websocket, the appropriate LED lights up (red, blue, or green).
Dependencies: WebSocketClient mbed-rtos mbed
main.cpp
- Committer:
- brianh
- Date:
- 2015-01-29
- Revision:
- 1:be04144070ea
- Parent:
- 0:181c1ea775ea
File content as of revision 1:be04144070ea:
/******************************************************************************* * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. ******************************************************************************* * * LEDRemote version 1.0 is a program that listens for ACII characters from a * websocket. If the correct ASCII characters are sent, the onboard LED on * a Freescale Freedom board (K64F) will light an LED. For example, if "R1" or * "R2" is received the RED LED gets exercised. "B1" and "B0" exercises the blue * LED, and "G1" and "G0" exercises the green LED. * */ #include "mbed.h" #include "EthernetInterface.h" #include "Websocket.h" DigitalOut ledr(PTB22); DigitalOut ledg(PTE26); DigitalOut ledb(PTB21); //DigitalIn sw(PTA4); int main() { int res; char buf[100]={0}; char comparebuf[2]={0}; char msg[100]; ledg = 1; ledr = 1; ledb = 1; bool startup = true; int startupmode = 0; int startupledcount = 0; //bool pb = 1; //BW_MPU_CESR_VLD(0);// k64f workaround mentioned here (to turn off MPU): https://community.freescale.com/thread/324825 //wait(1); //clock_manager_set_gate(kClockModuleENET,0,true); // turn on clock printf("\r\n---- Maxim's WebSocket example with the k64f board ----\r\n"); EthernetInterface eth; eth.init(); eth.connect(); //wait(1.0); printf("IP Address is %s\r\n", eth.getIPAddress()); wait(1.0); // Change YOURLOGIN for your mbed login so you can communicate to the board // using the mbed websocket at: // http://sockets.mbed.org/YOURLOGIN //Websocket ws("ws://sockets.mbed.org/ws/brianh/ro"); // over port 80 (html) //Websocket ws("ws://sockets.mbed.org:443/ws/brianh/rw"); // secure TLS //Websocket ws("ws://192.168.1.12:8080/"); // home -- notice forward slash is necessary Websocket ws("ws://10.17.245.247:8080/"); // Dallas -- Mbed needs the slash at the end or the websocket won't connect properly without a path //Websocket ws("ws://10.33.245.13:8080/"); // California -- Mbed needs the slash at the end or the websocket won't connect properly without a path //Websocket ws("ws://dal-lt-BHindman.maxim-ic.internal:8080/"); // laptop //wait(1.0); ws.connect(); wait(1.0); //ws.send("st"); //while (pb) while(1) { if (ws.is_connected()) { if (startup) { startupledcount++; // count number of loops while websocket is connected if (startupledcount > 20) { startupledcount = 0; startupmode++; if (startupmode == 1) ws.send("st"); // request server to send state of red led if (startupmode == 2) ws.send("su"); // request server to send state of green led if (startupmode == 3) ws.send("sv"); // request server to send state of blue led if (startupmode == 3) startup = false; } } //printf("is_connected() is true \r\n"); // read from websocket the led that should be turned on. if(!ws.read(buf)) { //printf("%c",buf[0]); // is it red? if(buf[0] == 'r') { if(buf[1] == '0') { ledr = 0; if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned red LED on\n\r"); } else { ledr = 1; if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned red LED off\n\r"); } } // is it green? if(buf[0] == 'g') { //printf("g! \r\n"); if(buf[1] == '0') { ledg = 0; if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned green LED on\n\r"); } else { ledg = 1; if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned green LED off\n\r"); } } // is it blue? if(buf[0] == 'b') { if(buf[1] == '0') { ledb = 0; if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned blue LED on\n\r"); } else { ledb = 1; if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned blue LED off\n\r"); } } comparebuf[0] = buf[0]; comparebuf[1] = buf[1]; } //pb = sw; } else { printf("trying to make websocket connection\n\r"); ws.close(); ws.connect(); //wait(1.0); } }// end while //ws.close(); //eth.disconnect(); //ledg = 1; //ledr = 1; //ledb = 1; //while(1) //{ //} }