Maxim Integrated / Mbed 2 deprecated LED_Remote

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@1:be04144070ea, 2015-01-29 (annotated)

Committer:
brianh
Date:
Thu Jan 29 01:27:03 2015 +0000
Revision:
1:be04144070ea
Parent:
0:181c1ea775ea 
LED Remote is a program that listens to a websocket.  The server sends sequences of ASCII characters to turn on and off the RED, BLUE, or GREEN LEDs on the K64F Freedom Board.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
brianh 0:181c1ea775ea 1 /*******************************************************************************
brianh 0:181c1ea775ea 2 * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
brianh 0:181c1ea775ea 3 *
brianh 0:181c1ea775ea 4 * Permission is hereby granted, free of charge, to any person obtaining a
brianh 0:181c1ea775ea 5 * copy of this software and associated documentation files (the "Software"),
brianh 0:181c1ea775ea 6 * to deal in the Software without restriction, including without limitation
brianh 0:181c1ea775ea 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
brianh 0:181c1ea775ea 8 * and/or sell copies of the Software, and to permit persons to whom the
brianh 0:181c1ea775ea 9 * Software is furnished to do so, subject to the following conditions:
brianh 0:181c1ea775ea 10 *
brianh 0:181c1ea775ea 11 * The above copyright notice and this permission notice shall be included
brianh 0:181c1ea775ea 12 * in all copies or substantial portions of the Software.
brianh 0:181c1ea775ea 13 *
brianh 0:181c1ea775ea 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
brianh 0:181c1ea775ea 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
brianh 0:181c1ea775ea 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
brianh 0:181c1ea775ea 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
brianh 0:181c1ea775ea 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
brianh 0:181c1ea775ea 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
brianh 0:181c1ea775ea 20 * OTHER DEALINGS IN THE SOFTWARE.
brianh 0:181c1ea775ea 21 *
brianh 0:181c1ea775ea 22 * Except as contained in this notice, the name of Maxim Integrated
brianh 0:181c1ea775ea 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
brianh 0:181c1ea775ea 24 * Products, Inc. Branding Policy.
brianh 0:181c1ea775ea 25 *
brianh 0:181c1ea775ea 26 * The mere transfer of this software does not imply any licenses
brianh 0:181c1ea775ea 27 * of trade secrets, proprietary technology, copyrights, patents,
brianh 0:181c1ea775ea 28 * trademarks, maskwork rights, or any other form of intellectual
brianh 0:181c1ea775ea 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
brianh 0:181c1ea775ea 30 * ownership rights.
brianh 0:181c1ea775ea 31 *******************************************************************************
brianh 0:181c1ea775ea 32 *
brianh 0:181c1ea775ea 33 * LEDRemote version 1.0 is a program that listens for ACII characters from a
brianh 0:181c1ea775ea 34 * websocket. If the correct ASCII characters are sent, the onboard LED on
brianh 0:181c1ea775ea 35 * a Freescale Freedom board (K64F) will light an LED. For example, if "R1" or
brianh 0:181c1ea775ea 36 * "R2" is received the RED LED gets exercised. "B1" and "B0" exercises the blue
brianh 0:181c1ea775ea 37 * LED, and "G1" and "G0" exercises the green LED.
brianh 0:181c1ea775ea 38 *
brianh 0:181c1ea775ea 39 */
brianh 0:181c1ea775ea 40
brianh 0:181c1ea775ea 41 #include "mbed.h"
brianh 0:181c1ea775ea 42 #include "EthernetInterface.h"
brianh 0:181c1ea775ea 43 #include "Websocket.h"
brianh 0:181c1ea775ea 44
brianh 0:181c1ea775ea 45 DigitalOut ledr(PTB22);
brianh 0:181c1ea775ea 46 DigitalOut ledg(PTE26);
brianh 0:181c1ea775ea 47 DigitalOut ledb(PTB21);
brianh 0:181c1ea775ea 48 //DigitalIn sw(PTA4);
brianh 0:181c1ea775ea 49
brianh 0:181c1ea775ea 50 int main() {
brianh 0:181c1ea775ea 51 int res;
brianh 0:181c1ea775ea 52 char buf[100]={0};
brianh 0:181c1ea775ea 53 char comparebuf[2]={0};
brianh 0:181c1ea775ea 54 char msg[100];
brianh 0:181c1ea775ea 55 ledg = 1;
brianh 0:181c1ea775ea 56 ledr = 1;
brianh 0:181c1ea775ea 57 ledb = 1;
brianh 0:181c1ea775ea 58 bool startup = true;
brianh 0:181c1ea775ea 59 int startupmode = 0;
brianh 0:181c1ea775ea 60 int startupledcount = 0;
brianh 0:181c1ea775ea 61
brianh 0:181c1ea775ea 62 //bool pb = 1;
brianh 0:181c1ea775ea 63
brianh 0:181c1ea775ea 64 //BW_MPU_CESR_VLD(0);// k64f workaround mentioned here (to turn off MPU): https://community.freescale.com/thread/324825
brianh 0:181c1ea775ea 65 //wait(1);
brianh 0:181c1ea775ea 66 //clock_manager_set_gate(kClockModuleENET,0,true); // turn on clock
brianh 0:181c1ea775ea 67
brianh 0:181c1ea775ea 68 printf("\r\n---- Maxim's WebSocket example with the k64f board ----\r\n");
brianh 0:181c1ea775ea 69 EthernetInterface eth;
brianh 0:181c1ea775ea 70 eth.init();
brianh 0:181c1ea775ea 71 eth.connect();
brianh 0:181c1ea775ea 72 //wait(1.0);
brianh 0:181c1ea775ea 73 printf("IP Address is %s\r\n", eth.getIPAddress());
brianh 0:181c1ea775ea 74 wait(1.0);
brianh 0:181c1ea775ea 75
brianh 0:181c1ea775ea 76 // Change YOURLOGIN for your mbed login so you can communicate to the board
brianh 0:181c1ea775ea 77 // using the mbed websocket at:
brianh 0:181c1ea775ea 78 // http://sockets.mbed.org/YOURLOGIN
brianh 0:181c1ea775ea 79 //Websocket ws("ws://sockets.mbed.org/ws/brianh/ro"); // over port 80 (html)
brianh 0:181c1ea775ea 80 //Websocket ws("ws://sockets.mbed.org:443/ws/brianh/rw"); // secure TLS
brianh 0:181c1ea775ea 81
brianh 0:181c1ea775ea 82 //Websocket ws("ws://192.168.1.12:8080/"); // home -- notice forward slash is necessary
brianh 0:181c1ea775ea 83 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
brianh 0:181c1ea775ea 84 //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
brianh 0:181c1ea775ea 85 //Websocket ws("ws://dal-lt-BHindman.maxim-ic.internal:8080/"); // laptop
brianh 0:181c1ea775ea 86 //wait(1.0);
brianh 0:181c1ea775ea 87
brianh 0:181c1ea775ea 88 ws.connect();
brianh 0:181c1ea775ea 89 wait(1.0);
brianh 0:181c1ea775ea 90
brianh 0:181c1ea775ea 91 //ws.send("st");
brianh 0:181c1ea775ea 92 //while (pb)
brianh 0:181c1ea775ea 93 while(1)
brianh 0:181c1ea775ea 94 {
brianh 0:181c1ea775ea 95 if (ws.is_connected())
brianh 0:181c1ea775ea 96 {
brianh 0:181c1ea775ea 97 if (startup)
brianh 0:181c1ea775ea 98 {
brianh 0:181c1ea775ea 99 startupledcount++; // count number of loops while websocket is connected
brianh 0:181c1ea775ea 100 if (startupledcount > 20)
brianh 0:181c1ea775ea 101 {
brianh 0:181c1ea775ea 102 startupledcount = 0;
brianh 0:181c1ea775ea 103 startupmode++;
brianh 0:181c1ea775ea 104 if (startupmode == 1) ws.send("st"); // request server to send state of red led
brianh 0:181c1ea775ea 105 if (startupmode == 2) ws.send("su"); // request server to send state of green led
brianh 0:181c1ea775ea 106 if (startupmode == 3) ws.send("sv"); // request server to send state of blue led
brianh 0:181c1ea775ea 107 if (startupmode == 3) startup = false;
brianh 0:181c1ea775ea 108 }
brianh 0:181c1ea775ea 109
brianh 0:181c1ea775ea 110 }
brianh 0:181c1ea775ea 111 //printf("is_connected() is true \r\n");
brianh 0:181c1ea775ea 112 // read from websocket the led that should be turned on.
brianh 0:181c1ea775ea 113 if(!ws.read(buf))
brianh 0:181c1ea775ea 114 {
brianh 0:181c1ea775ea 115 //printf("%c",buf[0]);
brianh 0:181c1ea775ea 116 // is it red?
brianh 0:181c1ea775ea 117 if(buf[0] == 'r')
brianh 0:181c1ea775ea 118 {
brianh 0:181c1ea775ea 119 if(buf[1] == '0')
brianh 0:181c1ea775ea 120 {
brianh 0:181c1ea775ea 121 ledr = 0;
brianh 0:181c1ea775ea 122 if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned red LED on\n\r");
brianh 0:181c1ea775ea 123 }
brianh 0:181c1ea775ea 124 else
brianh 0:181c1ea775ea 125 {
brianh 0:181c1ea775ea 126 ledr = 1;
brianh 0:181c1ea775ea 127 if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned red LED off\n\r");
brianh 0:181c1ea775ea 128 }
brianh 0:181c1ea775ea 129 }
brianh 0:181c1ea775ea 130 // is it green?
brianh 0:181c1ea775ea 131 if(buf[0] == 'g')
brianh 0:181c1ea775ea 132 {
brianh 0:181c1ea775ea 133 //printf("g! \r\n");
brianh 0:181c1ea775ea 134 if(buf[1] == '0')
brianh 0:181c1ea775ea 135 {
brianh 0:181c1ea775ea 136 ledg = 0;
brianh 0:181c1ea775ea 137 if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned green LED on\n\r");
brianh 0:181c1ea775ea 138 }
brianh 0:181c1ea775ea 139 else
brianh 0:181c1ea775ea 140 {
brianh 0:181c1ea775ea 141 ledg = 1;
brianh 0:181c1ea775ea 142 if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned green LED off\n\r");
brianh 0:181c1ea775ea 143 }
brianh 0:181c1ea775ea 144 }
brianh 0:181c1ea775ea 145 // is it blue?
brianh 0:181c1ea775ea 146 if(buf[0] == 'b')
brianh 0:181c1ea775ea 147 {
brianh 0:181c1ea775ea 148 if(buf[1] == '0')
brianh 0:181c1ea775ea 149 {
brianh 0:181c1ea775ea 150 ledb = 0;
brianh 0:181c1ea775ea 151 if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned blue LED on\n\r");
brianh 0:181c1ea775ea 152 }
brianh 0:181c1ea775ea 153 else
brianh 0:181c1ea775ea 154 {
brianh 0:181c1ea775ea 155 ledb = 1;
brianh 0:181c1ea775ea 156 if ((comparebuf[0] != buf[0]) || (comparebuf[1] != buf[1])) printf("Turned blue LED off\n\r");
brianh 0:181c1ea775ea 157 }
brianh 0:181c1ea775ea 158 }
brianh 0:181c1ea775ea 159 comparebuf[0] = buf[0];
brianh 0:181c1ea775ea 160 comparebuf[1] = buf[1];
brianh 0:181c1ea775ea 161
brianh 0:181c1ea775ea 162 }
brianh 0:181c1ea775ea 163 //pb = sw;
brianh 0:181c1ea775ea 164 }
brianh 0:181c1ea775ea 165 else
brianh 0:181c1ea775ea 166 {
brianh 0:181c1ea775ea 167 printf("trying to make websocket connection\n\r");
brianh 0:181c1ea775ea 168 ws.close();
brianh 0:181c1ea775ea 169 ws.connect();
brianh 0:181c1ea775ea 170 //wait(1.0);
brianh 0:181c1ea775ea 171 }
brianh 0:181c1ea775ea 172 }// end while
brianh 0:181c1ea775ea 173 //ws.close();
brianh 0:181c1ea775ea 174 //eth.disconnect();
brianh 0:181c1ea775ea 175 //ledg = 1;
brianh 0:181c1ea775ea 176 //ledr = 1;
brianh 0:181c1ea775ea 177 //ledb = 1;
brianh 0:181c1ea775ea 178 //while(1)
brianh 0:181c1ea775ea 179 //{
brianh 0:181c1ea775ea 180 //}
brianh 0:181c1ea775ea 181 }