Philippe Bazot / Mbed 2 deprecated DU4SmartCities

Code sample to be used with Bluemix for education purpose

Dependencies:   C12832 EthernetInterface LM75B MMA7660 MQTT mbed-rtos mbed

Fork of IBMIoTClientEthernetExample by IBM Watson IoT

main.cpp@19:48522ea6acef, 2016-10-04 (annotated)

Committer:
bazot
Date:
Tue Oct 04 07:54:27 2016 +0000
Revision:
19:48522ea6acef
Parent:
18:94da9de96d54 
Version 1.0 Module Villes Connect?es

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samdanbury 6:37b6d0d56190 1 /*******************************************************************************
icraggs 16:2420bfbf5f1c 2 * Copyright (c) 2014, 2015 IBM Corp.
samdanbury 6:37b6d0d56190 3 *
samdanbury 6:37b6d0d56190 4 * All rights reserved. This program and the accompanying materials
samdanbury 6:37b6d0d56190 5 * are made available under the terms of the Eclipse Public License v1.0
samdanbury 6:37b6d0d56190 6 * and Eclipse Distribution License v1.0 which accompany this distribution.
samdanbury 6:37b6d0d56190 7 *
samdanbury 6:37b6d0d56190 8 * The Eclipse Public License is available at
samdanbury 6:37b6d0d56190 9 * http://www.eclipse.org/legal/epl-v10.html
samdanbury 6:37b6d0d56190 10 * and the Eclipse Distribution License is available at
samdanbury 6:37b6d0d56190 11 * http://www.eclipse.org/org/documents/edl-v10.php.
samdanbury 6:37b6d0d56190 12 *
samdanbury 6:37b6d0d56190 13 * Contributors:
samdanbury 6:37b6d0d56190 14 * Sam Danbury - initial implementation
samdanbury 6:37b6d0d56190 15 * Ian Craggs - refactoring to remove STL and other changes
icraggs 8:80d49dd91542 16 * Sam Grove - added check for Ethernet cable.
chris 10:0b5e0dfee08e 17 * Chris Styles - Added additional menu screen for software revision
icraggs 16:2420bfbf5f1c 18 * James Sutton - Mac fix and extra debug
icraggs 16:2420bfbf5f1c 19 * Ian Craggs - add not authorized messages
chris 10:0b5e0dfee08e 20 *
chris 10:0b5e0dfee08e 21 * To do :
chris 10:0b5e0dfee08e 22 * Add magnetometer sensor output to IoT data stream
chris 10:0b5e0dfee08e 23 *
samdanbury 6:37b6d0d56190 24 *******************************************************************************/
samdanbury 6:37b6d0d56190 25
samdanbury 6:37b6d0d56190 26 #include "LM75B.h"
samdanbury 6:37b6d0d56190 27 #include "MMA7660.h"
samdanbury 6:37b6d0d56190 28 #include "MQTTClient.h"
samdanbury 6:37b6d0d56190 29 #include "MQTTEthernet.h"
samdanbury 6:37b6d0d56190 30 #include "C12832.h"
samdanbury 6:37b6d0d56190 31 #include "Arial12x12.h"
samdanbury 6:37b6d0d56190 32 #include "rtos.h"
samdanbury 6:37b6d0d56190 33
chris 10:0b5e0dfee08e 34 // Update this to the next number *before* a commit
icraggs 18:94da9de96d54 35 #define __APP_SW_REVISION__ "18"
chris 10:0b5e0dfee08e 36
samdanbury 6:37b6d0d56190 37 // Configuration values needed to connect to IBM IoT Cloud
bazot 19:48522ea6acef 38 #define ORG "!!!!!!" // For a registered connection, replace with your org
bazot 19:48522ea6acef 39 #define ID "!!!!!!" // For a registered connection, replace with your id
bazot 19:48522ea6acef 40 #define AUTH_TOKEN "!!!!!!" // For a registered connection, replace with your auth-token
bazot 19:48522ea6acef 41 #define TYPE "!!!!!!" // For a registered connection, replace with your type
bazot 19:48522ea6acef 42 #define DEVICE_NAME "!!!!!!!" // Replace with your own name
samdanbury 6:37b6d0d56190 43
samdanbury 6:37b6d0d56190 44 #define MQTT_PORT 1883
samdanbury 6:37b6d0d56190 45 #define MQTT_TLS_PORT 8883
samdanbury 6:37b6d0d56190 46 #define IBM_IOT_PORT MQTT_PORT
samdanbury 6:37b6d0d56190 47
samdanbury 6:37b6d0d56190 48 #define MQTT_MAX_PACKET_SIZE 250
samdanbury 6:37b6d0d56190 49
mazgch 11:7a6df9a2dcdc 50 #if defined(TARGET_UBLOX_C027)
mazgch 11:7a6df9a2dcdc 51 #warning "Compiling for mbed C027"
mazgch 11:7a6df9a2dcdc 52 #include "C027.h"
mazgch 11:7a6df9a2dcdc 53 #elif defined(TARGET_LPC1768)
samdanbury 6:37b6d0d56190 54 #warning "Compiling for mbed LPC1768"
samdanbury 6:37b6d0d56190 55 #include "LPC1768.h"
samdanbury 6:37b6d0d56190 56 #elif defined(TARGET_K64F)
samdanbury 6:37b6d0d56190 57 #warning "Compiling for mbed K64F"
samdanbury 6:37b6d0d56190 58 #include "K64F.h"
samdanbury 6:37b6d0d56190 59 #endif
samdanbury 6:37b6d0d56190 60
jsutton 14:1f961d19f3cf 61
bazot 19:48522ea6acef 62 bool quickstartMode = false;
samdanbury 6:37b6d0d56190 63 char org[11] = ORG;
samdanbury 6:37b6d0d56190 64 char type[30] = TYPE;
samdanbury 6:37b6d0d56190 65 char id[30] = ID; // mac without colons
samdanbury 6:37b6d0d56190 66 char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode
samdanbury 6:37b6d0d56190 67
samdanbury 6:37b6d0d56190 68 bool connected = false;
jsutton 14:1f961d19f3cf 69 bool mqttConnecting = false;
jsutton 14:1f961d19f3cf 70 bool netConnected = false;
jsutton 14:1f961d19f3cf 71 bool netConnecting = false;
jsutton 14:1f961d19f3cf 72 bool ethernetInitialising = true;
icraggs 16:2420bfbf5f1c 73 int connack_rc = 0; // MQTT connack return code
jsutton 14:1f961d19f3cf 74 int retryAttempt = 0;
jsutton 14:1f961d19f3cf 75 int menuItem = 0;
jsutton 14:1f961d19f3cf 76
samdanbury 6:37b6d0d56190 77 char* joystickPos = "CENTRE";
samdanbury 6:37b6d0d56190 78 int blink_interval = 0;
samdanbury 6:37b6d0d56190 79
jsutton 13:85801e3b83d3 80 char* ip_addr = "";
jsutton 13:85801e3b83d3 81 char* gateway_addr = "";
jsutton 14:1f961d19f3cf 82 char* host_addr = "";
jsutton 14:1f961d19f3cf 83 int connectTimeout = 1000;
jsutton 14:1f961d19f3cf 84
jsutton 14:1f961d19f3cf 85 // If we wanted to manually set the MAC address,
jsutton 14:1f961d19f3cf 86 // this is how to do it. In this example, we take
jsutton 14:1f961d19f3cf 87 // the original Mbed Set MAC address and combine it
jsutton 14:1f961d19f3cf 88 // with a prefix of our choosing.
jsutton 14:1f961d19f3cf 89 /*
jsutton 14:1f961d19f3cf 90 extern "C" void $Super$$mbed_mac_address(char *s);
jsutton 14:1f961d19f3cf 91 extern "C" void $Sub$$mbed_mac_address(char *s)
jsutton 14:1f961d19f3cf 92 {
jsutton 15:09458079f4bb 93 char originalMAC[6] = "";
jsutton 15:09458079f4bb 94 $Super$$mbed_mac_address(originalMAC);
jsutton 14:1f961d19f3cf 95
jsutton 14:1f961d19f3cf 96 char mac[6];
jsutton 14:1f961d19f3cf 97 mac[0] = 0x00;
jsutton 14:1f961d19f3cf 98 mac[1] = 0x08;
jsutton 14:1f961d19f3cf 99 mac[2] = 0xdc;
jsutton 15:09458079f4bb 100 mac[3] = originalMAC[3];
jsutton 15:09458079f4bb 101 mac[4] = originalMAC[4];
jsutton 15:09458079f4bb 102 mac[5] = originalMAC[5];
jsutton 14:1f961d19f3cf 103 memcpy(s, mac, 6);
jsutton 14:1f961d19f3cf 104 }
jsutton 14:1f961d19f3cf 105 */
jsutton 13:85801e3b83d3 106
samdanbury 6:37b6d0d56190 107
samdanbury 6:37b6d0d56190 108 void off()
samdanbury 6:37b6d0d56190 109 {
samdanbury 6:37b6d0d56190 110 r = g = b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 111 }
samdanbury 6:37b6d0d56190 112
samdanbury 6:37b6d0d56190 113 void red()
samdanbury 6:37b6d0d56190 114 {
samdanbury 6:37b6d0d56190 115 r = 0.7; g = 1.0; b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 116 }
samdanbury 6:37b6d0d56190 117
samdanbury 6:37b6d0d56190 118 void yellow()
samdanbury 6:37b6d0d56190 119 {
samdanbury 6:37b6d0d56190 120 r = 0.7; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 121 }
samdanbury 6:37b6d0d56190 122
samdanbury 6:37b6d0d56190 123 void green()
samdanbury 6:37b6d0d56190 124 {
samdanbury 6:37b6d0d56190 125 r = 1.0; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 126 }
samdanbury 6:37b6d0d56190 127
samdanbury 6:37b6d0d56190 128
samdanbury 6:37b6d0d56190 129 void flashing_yellow(void const *args)
samdanbury 6:37b6d0d56190 130 {
samdanbury 6:37b6d0d56190 131 bool on = false;
icraggs 16:2420bfbf5f1c 132 while (!connected && connack_rc != MQTT_NOT_AUTHORIZED && connack_rc != MQTT_BAD_USERNAME_OR_PASSWORD) // flashing yellow only while connecting
samdanbury 6:37b6d0d56190 133 {
samdanbury 6:37b6d0d56190 134 on = !on;
samdanbury 6:37b6d0d56190 135 if (on)
samdanbury 6:37b6d0d56190 136 yellow();
samdanbury 6:37b6d0d56190 137 else
samdanbury 6:37b6d0d56190 138 off();
samdanbury 6:37b6d0d56190 139 wait(0.5);
samdanbury 6:37b6d0d56190 140 }
samdanbury 6:37b6d0d56190 141 }
samdanbury 6:37b6d0d56190 142
samdanbury 6:37b6d0d56190 143
samdanbury 6:37b6d0d56190 144 void flashing_red(void const *args) // to be used when the connection is lost
samdanbury 6:37b6d0d56190 145 {
samdanbury 6:37b6d0d56190 146 bool on = false;
samdanbury 6:37b6d0d56190 147 while (!connected)
samdanbury 6:37b6d0d56190 148 {
samdanbury 6:37b6d0d56190 149 on = !on;
samdanbury 6:37b6d0d56190 150 if (on)
samdanbury 6:37b6d0d56190 151 red();
samdanbury 6:37b6d0d56190 152 else
samdanbury 6:37b6d0d56190 153 off();
samdanbury 6:37b6d0d56190 154 wait(2.0);
samdanbury 6:37b6d0d56190 155 }
samdanbury 6:37b6d0d56190 156 }
samdanbury 6:37b6d0d56190 157
samdanbury 6:37b6d0d56190 158
samdanbury 6:37b6d0d56190 159 void printMenu(int menuItem)
samdanbury 6:37b6d0d56190 160 {
icraggs 18:94da9de96d54 161 static char last_line1[30] = "", last_line2[30] = "";
icraggs 18:94da9de96d54 162 char line1[30] = "", line2[30] = "";
icraggs 18:94da9de96d54 163
samdanbury 6:37b6d0d56190 164 switch (menuItem)
samdanbury 6:37b6d0d56190 165 {
samdanbury 6:37b6d0d56190 166 case 0:
icraggs 18:94da9de96d54 167 sprintf(line1, "IBM IoT Cloud");
icraggs 18:94da9de96d54 168 sprintf(line2, "Scroll with joystick");
samdanbury 6:37b6d0d56190 169 break;
samdanbury 6:37b6d0d56190 170 case 1:
icraggs 18:94da9de96d54 171 sprintf(line1, "Go to:");
icraggs 18:94da9de96d54 172 sprintf(line2, "http://ibm.biz/iotqstart");
samdanbury 6:37b6d0d56190 173 break;
samdanbury 6:37b6d0d56190 174 case 2:
icraggs 18:94da9de96d54 175 sprintf(line1, "Device Identity:");
icraggs 18:94da9de96d54 176 sprintf(line2, "%s", id);
samdanbury 6:37b6d0d56190 177 break;
samdanbury 6:37b6d0d56190 178 case 3:
icraggs 18:94da9de96d54 179 sprintf(line1, "MQTT Status:");
icraggs 16:2420bfbf5f1c 180 if (mqttConnecting)
icraggs 18:94da9de96d54 181 sprintf(line2, "Connecting... %d/5", retryAttempt);
icraggs 16:2420bfbf5f1c 182 else
icraggs 16:2420bfbf5f1c 183 {
icraggs 16:2420bfbf5f1c 184 if (connected)
icraggs 18:94da9de96d54 185 sprintf(line2, "Connected");
icraggs 16:2420bfbf5f1c 186 else
icraggs 16:2420bfbf5f1c 187 {
icraggs 16:2420bfbf5f1c 188 switch (connack_rc)
icraggs 16:2420bfbf5f1c 189 {
icraggs 16:2420bfbf5f1c 190 case MQTT_CLIENTID_REJECTED:
icraggs 18:94da9de96d54 191 sprintf(line2, "Clientid rejected");
icraggs 16:2420bfbf5f1c 192 break;
icraggs 16:2420bfbf5f1c 193 case MQTT_BAD_USERNAME_OR_PASSWORD:
icraggs 18:94da9de96d54 194 sprintf(line2, "Invalid username or password");
icraggs 16:2420bfbf5f1c 195 break;
icraggs 16:2420bfbf5f1c 196 case MQTT_NOT_AUTHORIZED:
icraggs 18:94da9de96d54 197 sprintf(line2, "Not authorized");
icraggs 16:2420bfbf5f1c 198 break;
icraggs 16:2420bfbf5f1c 199 default:
icraggs 18:94da9de96d54 200 sprintf(line2, "Disconnected");
icraggs 16:2420bfbf5f1c 201 }
icraggs 16:2420bfbf5f1c 202 }
jsutton 14:1f961d19f3cf 203 }
samdanbury 6:37b6d0d56190 204 break;
chris 10:0b5e0dfee08e 205 case 4:
icraggs 18:94da9de96d54 206 sprintf(line1, "Ethernet State:");
icraggs 18:94da9de96d54 207 sprintf(line2, ethernetInitialising ? "Initializing..." : "Initialized");
jsutton 14:1f961d19f3cf 208 break;
jsutton 14:1f961d19f3cf 209 case 5:
icraggs 18:94da9de96d54 210 sprintf(line1, "Socket State:");
icraggs 16:2420bfbf5f1c 211 if (netConnecting)
icraggs 18:94da9de96d54 212 sprintf(line2, "Connecting... %d/5", retryAttempt);
icraggs 16:2420bfbf5f1c 213 else
icraggs 18:94da9de96d54 214 sprintf(line2, netConnected ? "Connected" : "Disconnected");
jsutton 13:85801e3b83d3 215 break;
jsutton 14:1f961d19f3cf 216 case 6:
icraggs 18:94da9de96d54 217 sprintf(line1, "IP Address:");
icraggs 18:94da9de96d54 218 sprintf(line2, "%s", ip_addr);
jsutton 13:85801e3b83d3 219 break;
jsutton 14:1f961d19f3cf 220 case 7:
icraggs 18:94da9de96d54 221 sprintf(line1, "Gateway:");
icraggs 18:94da9de96d54 222 sprintf(line2, "%s", gateway_addr);
jsutton 13:85801e3b83d3 223 break;
jsutton 14:1f961d19f3cf 224 case 8:
icraggs 18:94da9de96d54 225 sprintf(line1, "App version:");
icraggs 18:94da9de96d54 226 sprintf(line2, "%s", __APP_SW_REVISION__);
chris 10:0b5e0dfee08e 227 break;
jsutton 14:1f961d19f3cf 228 case 9:
icraggs 18:94da9de96d54 229 sprintf(line1, "Current Timeout:");
icraggs 18:94da9de96d54 230 sprintf(line2, "%d ms", connectTimeout);
jsutton 14:1f961d19f3cf 231 break;
samdanbury 6:37b6d0d56190 232 }
icraggs 18:94da9de96d54 233
icraggs 18:94da9de96d54 234 if (strcmp(line1, last_line1) != 0 || strcmp(line2, last_line2) != 0)
icraggs 18:94da9de96d54 235 {
icraggs 18:94da9de96d54 236 lcd.cls();
icraggs 18:94da9de96d54 237 lcd.locate(0, 0);
icraggs 18:94da9de96d54 238 lcd.printf(line1);
icraggs 18:94da9de96d54 239 strncpy(last_line1, line1, sizeof(last_line1));
icraggs 18:94da9de96d54 240
icraggs 18:94da9de96d54 241 lcd.locate(0,16);
icraggs 18:94da9de96d54 242 lcd.printf(line2);
icraggs 18:94da9de96d54 243 strncpy(last_line2, line2, sizeof(last_line2));
icraggs 18:94da9de96d54 244 }
samdanbury 6:37b6d0d56190 245 }
samdanbury 6:37b6d0d56190 246
samdanbury 6:37b6d0d56190 247
samdanbury 6:37b6d0d56190 248 void setMenu()
samdanbury 6:37b6d0d56190 249 {
jsutton 14:1f961d19f3cf 250
samdanbury 6:37b6d0d56190 251 if (Down)
samdanbury 6:37b6d0d56190 252 {
samdanbury 6:37b6d0d56190 253 joystickPos = "DOWN";
jsutton 14:1f961d19f3cf 254 if (menuItem >= 0 && menuItem < 9)
samdanbury 6:37b6d0d56190 255 printMenu(++menuItem);
samdanbury 6:37b6d0d56190 256 }
samdanbury 6:37b6d0d56190 257 else if (Left)
samdanbury 6:37b6d0d56190 258 joystickPos = "LEFT";
samdanbury 6:37b6d0d56190 259 else if (Click)
samdanbury 6:37b6d0d56190 260 joystickPos = "CLICK";
samdanbury 6:37b6d0d56190 261 else if (Up)
samdanbury 6:37b6d0d56190 262 {
samdanbury 6:37b6d0d56190 263 joystickPos = "UP";
jsutton 14:1f961d19f3cf 264 if (menuItem <= 9 && menuItem > 0)
samdanbury 6:37b6d0d56190 265 printMenu(--menuItem);
samdanbury 6:37b6d0d56190 266 }
samdanbury 6:37b6d0d56190 267 else if (Right)
samdanbury 6:37b6d0d56190 268 joystickPos = "RIGHT";
samdanbury 6:37b6d0d56190 269 else
samdanbury 6:37b6d0d56190 270 joystickPos = "CENTRE";
samdanbury 6:37b6d0d56190 271 }
samdanbury 6:37b6d0d56190 272
jsutton 13:85801e3b83d3 273 void menu_loop(void const *args)
jsutton 13:85801e3b83d3 274 {
jsutton 14:1f961d19f3cf 275 int count = 0;
icraggs 16:2420bfbf5f1c 276 while(true)
icraggs 16:2420bfbf5f1c 277 {
jsutton 13:85801e3b83d3 278 setMenu();
icraggs 16:2420bfbf5f1c 279 if (++count % 10 == 0)
jsutton 14:1f961d19f3cf 280 printMenu(menuItem);
jsutton 14:1f961d19f3cf 281 Thread::wait(100);
jsutton 13:85801e3b83d3 282 }
jsutton 13:85801e3b83d3 283 }
jsutton 13:85801e3b83d3 284
samdanbury 6:37b6d0d56190 285
samdanbury 6:37b6d0d56190 286 /**
samdanbury 6:37b6d0d56190 287 * Display a message on the LCD screen prefixed with IBM IoT Cloud
samdanbury 6:37b6d0d56190 288 */
samdanbury 6:37b6d0d56190 289 void displayMessage(char* message)
samdanbury 6:37b6d0d56190 290 {
samdanbury 6:37b6d0d56190 291 lcd.cls();
samdanbury 6:37b6d0d56190 292 lcd.locate(0,0);
samdanbury 6:37b6d0d56190 293 lcd.printf("IBM IoT Cloud");
samdanbury 6:37b6d0d56190 294 lcd.locate(0,16);
samdanbury 6:37b6d0d56190 295 lcd.printf(message);
samdanbury 6:37b6d0d56190 296 }
samdanbury 6:37b6d0d56190 297
samdanbury 6:37b6d0d56190 298
samdanbury 6:37b6d0d56190 299 int connect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
samdanbury 6:37b6d0d56190 300 {
samdanbury 6:37b6d0d56190 301 const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com";
samdanbury 6:37b6d0d56190 302
samdanbury 6:37b6d0d56190 303 char hostname[strlen(org) + strlen(iot_ibm) + 1];
samdanbury 6:37b6d0d56190 304 sprintf(hostname, "%s%s", org, iot_ibm);
jsutton 13:85801e3b83d3 305 EthernetInterface& eth = ipstack->getEth();
jsutton 13:85801e3b83d3 306 ip_addr = eth.getIPAddress();
jsutton 13:85801e3b83d3 307 gateway_addr = eth.getGateway();
jsutton 14:1f961d19f3cf 308
jsutton 14:1f961d19f3cf 309 // Construct clientId - d:org:type:id
jsutton 14:1f961d19f3cf 310 char clientId[strlen(org) + strlen(type) + strlen(id) + 5];
jsutton 14:1f961d19f3cf 311 sprintf(clientId, "d:%s:%s:%s", org, type, id);
jsutton 14:1f961d19f3cf 312
icraggs 16:2420bfbf5f1c 313 // Network debug statements
jsutton 14:1f961d19f3cf 314 LOG("=====================================\n");
jsutton 14:1f961d19f3cf 315 LOG("Connecting Ethernet.\n");
jsutton 14:1f961d19f3cf 316 LOG("IP ADDRESS: %s\n", eth.getIPAddress());
jsutton 14:1f961d19f3cf 317 LOG("MAC ADDRESS: %s\n", eth.getMACAddress());
jsutton 14:1f961d19f3cf 318 LOG("Gateway: %s\n", eth.getGateway());
jsutton 14:1f961d19f3cf 319 LOG("Network Mask: %s\n", eth.getNetworkMask());
jsutton 14:1f961d19f3cf 320 LOG("Server Hostname: %s\n", hostname);
jsutton 14:1f961d19f3cf 321 LOG("Client ID: %s\n", clientId);
jsutton 14:1f961d19f3cf 322 LOG("=====================================\n");
jsutton 14:1f961d19f3cf 323
jsutton 14:1f961d19f3cf 324 netConnecting = true;
jsutton 14:1f961d19f3cf 325 int rc = ipstack->connect(hostname, IBM_IOT_PORT, connectTimeout);
icraggs 16:2420bfbf5f1c 326 if (rc != 0)
icraggs 16:2420bfbf5f1c 327 {
icraggs 18:94da9de96d54 328 WARN("IP Stack connect returned: %d\n", rc);
samdanbury 6:37b6d0d56190 329 return rc;
jsutton 13:85801e3b83d3 330 }
jsutton 13:85801e3b83d3 331 netConnected = true;
jsutton 14:1f961d19f3cf 332 netConnecting = false;
jsutton 14:1f961d19f3cf 333
samdanbury 6:37b6d0d56190 334 // MQTT Connect
jsutton 14:1f961d19f3cf 335 mqttConnecting = true;
samdanbury 6:37b6d0d56190 336 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
samdanbury 6:37b6d0d56190 337 data.MQTTVersion = 3;
samdanbury 6:37b6d0d56190 338 data.clientID.cstring = clientId;
samdanbury 6:37b6d0d56190 339
samdanbury 6:37b6d0d56190 340 if (!quickstartMode)
samdanbury 6:37b6d0d56190 341 {
samdanbury 6:37b6d0d56190 342 data.username.cstring = "use-token-auth";
samdanbury 6:37b6d0d56190 343 data.password.cstring = auth_token;
samdanbury 6:37b6d0d56190 344 }
samdanbury 6:37b6d0d56190 345
icraggs 8:80d49dd91542 346 if ((rc = client->connect(data)) == 0)
samdanbury 6:37b6d0d56190 347 {
samdanbury 6:37b6d0d56190 348 connected = true;
samdanbury 6:37b6d0d56190 349 green();
samdanbury 6:37b6d0d56190 350 displayMessage("Connected");
jsutton 13:85801e3b83d3 351 wait(1);
samdanbury 6:37b6d0d56190 352 displayMessage("Scroll with joystick");
samdanbury 6:37b6d0d56190 353 }
icraggs 16:2420bfbf5f1c 354 else
icraggs 16:2420bfbf5f1c 355 WARN("MQTT connect returned %d\n", rc);
icraggs 16:2420bfbf5f1c 356 if (rc >= 0)
icraggs 16:2420bfbf5f1c 357 connack_rc = rc;
jsutton 14:1f961d19f3cf 358 mqttConnecting = false;
samdanbury 6:37b6d0d56190 359 return rc;
samdanbury 6:37b6d0d56190 360 }
samdanbury 6:37b6d0d56190 361
samdanbury 6:37b6d0d56190 362
samdanbury 6:37b6d0d56190 363 int getConnTimeout(int attemptNumber)
samdanbury 6:37b6d0d56190 364 { // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute
samdanbury 6:37b6d0d56190 365 // after 20 attempts, retry every 10 minutes
samdanbury 6:37b6d0d56190 366 return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600;
samdanbury 6:37b6d0d56190 367 }
samdanbury 6:37b6d0d56190 368
samdanbury 6:37b6d0d56190 369
samdanbury 6:37b6d0d56190 370 void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
samdanbury 6:37b6d0d56190 371 {
samdanbury 6:37b6d0d56190 372 connected = false;
icraggs 16:2420bfbf5f1c 373
icraggs 8:80d49dd91542 374 // make sure a cable is connected before starting to connect
icraggs 16:2420bfbf5f1c 375 while (!linkStatus())
icraggs 16:2420bfbf5f1c 376 {
icraggs 8:80d49dd91542 377 wait(1.0f);
icraggs 8:80d49dd91542 378 WARN("Ethernet link not present. Check cable connection\n");
icraggs 8:80d49dd91542 379 }
samdanbury 6:37b6d0d56190 380
icraggs 16:2420bfbf5f1c 381 while (connect(client, ipstack) != MQTT_CONNECTION_ACCEPTED)
samdanbury 6:37b6d0d56190 382 {
icraggs 16:2420bfbf5f1c 383 if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD)
icraggs 16:2420bfbf5f1c 384 return; // don't reattempt to connect if credentials are wrong
icraggs 16:2420bfbf5f1c 385
samdanbury 6:37b6d0d56190 386 Thread red_thread(flashing_red);
chris 12:8b480eb8a496 387
samdanbury 6:37b6d0d56190 388 int timeout = getConnTimeout(++retryAttempt);
samdanbury 6:37b6d0d56190 389 WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout);
icraggs 8:80d49dd91542 390
icraggs 8:80d49dd91542 391 // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed
icraggs 8:80d49dd91542 392 // or maybe just add the proper members to do this disconnect and call attemptConnect(...)
icraggs 8:80d49dd91542 393
icraggs 8:80d49dd91542 394 // this works - reset the system when the retry count gets to a threshold
icraggs 8:80d49dd91542 395 if (retryAttempt == 5)
icraggs 8:80d49dd91542 396 NVIC_SystemReset();
icraggs 8:80d49dd91542 397 else
icraggs 8:80d49dd91542 398 wait(timeout);
samdanbury 6:37b6d0d56190 399 }
samdanbury 6:37b6d0d56190 400 }
samdanbury 6:37b6d0d56190 401
samdanbury 6:37b6d0d56190 402
samdanbury 6:37b6d0d56190 403 int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
samdanbury 6:37b6d0d56190 404 {
samdanbury 6:37b6d0d56190 405 MQTT::Message message;
samdanbury 6:37b6d0d56190 406 char* pubTopic = "iot-2/evt/status/fmt/json";
samdanbury 6:37b6d0d56190 407
samdanbury 6:37b6d0d56190 408 char buf[250];
samdanbury 6:37b6d0d56190 409 sprintf(buf,
bazot 19:48522ea6acef 410 "{\"d\":{\"myName\":\"IoT mbed\",\"accelX\":%0.4f,\"accelY\":%0.4f,\"accelZ\":%0.4f,\"temp\":%0.4f,\"joystick\":\"%s\",\"potentiometer1\":%0.4f,\"potentiometer2\":%0.4f,\"Latitude\":43.7,\"Longitude\":7.25,\"Rfid\":12345}}",
samdanbury 6:37b6d0d56190 411 MMA.x(), MMA.y(), MMA.z(), sensor.temp(), joystickPos, ain1.read(), ain2.read());
bazot 19:48522ea6acef 412
samdanbury 6:37b6d0d56190 413 message.qos = MQTT::QOS0;
samdanbury 6:37b6d0d56190 414 message.retained = false;
samdanbury 6:37b6d0d56190 415 message.dup = false;
samdanbury 6:37b6d0d56190 416 message.payload = (void*)buf;
samdanbury 6:37b6d0d56190 417 message.payloadlen = strlen(buf);
samdanbury 6:37b6d0d56190 418
samdanbury 6:37b6d0d56190 419 LOG("Publishing %s\n", buf);
icraggs 8:80d49dd91542 420 return client->publish(pubTopic, message);
samdanbury 6:37b6d0d56190 421 }
samdanbury 6:37b6d0d56190 422
samdanbury 6:37b6d0d56190 423
samdanbury 6:37b6d0d56190 424 char* getMac(EthernetInterface& eth, char* buf, int buflen) // Obtain MAC address
samdanbury 6:37b6d0d56190 425 {
samdanbury 6:37b6d0d56190 426 strncpy(buf, eth.getMACAddress(), buflen);
samdanbury 6:37b6d0d56190 427
samdanbury 6:37b6d0d56190 428 char* pos; // Remove colons from mac address
samdanbury 6:37b6d0d56190 429 while ((pos = strchr(buf, ':')) != NULL)
samdanbury 6:37b6d0d56190 430 memmove(pos, pos + 1, strlen(pos) + 1);
samdanbury 6:37b6d0d56190 431 return buf;
samdanbury 6:37b6d0d56190 432 }
chris 12:8b480eb8a496 433
samdanbury 6:37b6d0d56190 434
samdanbury 6:37b6d0d56190 435 void messageArrived(MQTT::MessageData& md)
samdanbury 6:37b6d0d56190 436 {
samdanbury 6:37b6d0d56190 437 MQTT::Message &message = md.message;
samdanbury 6:37b6d0d56190 438 char topic[md.topicName.lenstring.len + 1];
samdanbury 6:37b6d0d56190 439
samdanbury 6:37b6d0d56190 440 sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data);
samdanbury 6:37b6d0d56190 441
samdanbury 6:37b6d0d56190 442 LOG("Message arrived on topic %s: %.*s\n", topic, message.payloadlen, message.payload);
samdanbury 6:37b6d0d56190 443
samdanbury 6:37b6d0d56190 444 // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/
samdanbury 6:37b6d0d56190 445 char* start = strstr(topic, "/cmd/") + 5;
samdanbury 6:37b6d0d56190 446 int len = strstr(topic, "/fmt/") - start;
samdanbury 6:37b6d0d56190 447
samdanbury 6:37b6d0d56190 448 if (memcmp(start, "blink", len) == 0)
samdanbury 6:37b6d0d56190 449 {
samdanbury 6:37b6d0d56190 450 char payload[message.payloadlen + 1];
samdanbury 6:37b6d0d56190 451 sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload);
samdanbury 6:37b6d0d56190 452
samdanbury 6:37b6d0d56190 453 char* pos = strchr(payload, '}');
samdanbury 6:37b6d0d56190 454 if (pos != NULL)
samdanbury 6:37b6d0d56190 455 {
samdanbury 6:37b6d0d56190 456 *pos = '\0';
samdanbury 6:37b6d0d56190 457 if ((pos = strchr(payload, ':')) != NULL)
samdanbury 6:37b6d0d56190 458 {
samdanbury 6:37b6d0d56190 459 int blink_rate = atoi(pos + 1);
samdanbury 6:37b6d0d56190 460 blink_interval = (blink_rate <= 0) ? 0 : (blink_rate > 50 ? 1 : 50/blink_rate);
samdanbury 6:37b6d0d56190 461 }
samdanbury 6:37b6d0d56190 462 }
samdanbury 6:37b6d0d56190 463 }
samdanbury 6:37b6d0d56190 464 else
samdanbury 6:37b6d0d56190 465 WARN("Unsupported command: %.*s\n", len, start);
samdanbury 6:37b6d0d56190 466 }
samdanbury 6:37b6d0d56190 467
samdanbury 6:37b6d0d56190 468
samdanbury 6:37b6d0d56190 469 int main()
samdanbury 6:37b6d0d56190 470 {
icraggs 8:80d49dd91542 471 quickstartMode = (strcmp(org, "quickstart") == 0);
icraggs 8:80d49dd91542 472
samdanbury 6:37b6d0d56190 473 lcd.set_font((unsigned char*) Arial12x12); // Set a nice font for the LCD screen
samdanbury 6:37b6d0d56190 474
samdanbury 6:37b6d0d56190 475 led2 = LED2_OFF; // K64F: turn off the main board LED
samdanbury 6:37b6d0d56190 476
samdanbury 6:37b6d0d56190 477 displayMessage("Connecting");
jsutton 13:85801e3b83d3 478 Thread yellow_thread(flashing_yellow);
jsutton 13:85801e3b83d3 479 Thread menu_thread(menu_loop);
jsutton 13:85801e3b83d3 480
jsutton 14:1f961d19f3cf 481 LOG("***** IBM IoT Client Ethernet Example *****\n");
samdanbury 6:37b6d0d56190 482 MQTTEthernet ipstack;
jsutton 14:1f961d19f3cf 483 ethernetInitialising = false;
samdanbury 6:37b6d0d56190 484 MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack);
icraggs 18:94da9de96d54 485 LOG("Ethernet Initialized\n");
jsutton 13:85801e3b83d3 486
samdanbury 6:37b6d0d56190 487 if (quickstartMode)
icraggs 16:2420bfbf5f1c 488 getMac(ipstack.getEth(), id, sizeof(id));
icraggs 16:2420bfbf5f1c 489
icraggs 16:2420bfbf5f1c 490 attemptConnect(&client, &ipstack);
icraggs 16:2420bfbf5f1c 491
icraggs 16:2420bfbf5f1c 492 if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD)
samdanbury 6:37b6d0d56190 493 {
icraggs 16:2420bfbf5f1c 494 red();
icraggs 16:2420bfbf5f1c 495 while (true)
icraggs 16:2420bfbf5f1c 496 wait(1.0); // Permanent failures - don't retry
samdanbury 6:37b6d0d56190 497 }
icraggs 16:2420bfbf5f1c 498
samdanbury 6:37b6d0d56190 499 if (!quickstartMode)
samdanbury 6:37b6d0d56190 500 {
samdanbury 6:37b6d0d56190 501 int rc = 0;
samdanbury 6:37b6d0d56190 502 if ((rc = client.subscribe("iot-2/cmd/+/fmt/json", MQTT::QOS1, messageArrived)) != 0)
samdanbury 6:37b6d0d56190 503 WARN("rc from MQTT subscribe is %d\n", rc);
samdanbury 6:37b6d0d56190 504 }
samdanbury 6:37b6d0d56190 505
samdanbury 6:37b6d0d56190 506 blink_interval = 0;
samdanbury 6:37b6d0d56190 507 int count = 0;
samdanbury 6:37b6d0d56190 508 while (true)
samdanbury 6:37b6d0d56190 509 {
bazot 19:48522ea6acef 510 if (++count == 2500) // Here is the count to change the number of publish/second
samdanbury 6:37b6d0d56190 511 { // Publish a message every second
samdanbury 6:37b6d0d56190 512 if (publish(&client, &ipstack) != 0)
samdanbury 6:37b6d0d56190 513 attemptConnect(&client, &ipstack); // if we have lost the connection
samdanbury 6:37b6d0d56190 514 count = 0;
samdanbury 6:37b6d0d56190 515 }
samdanbury 6:37b6d0d56190 516
samdanbury 6:37b6d0d56190 517 if (blink_interval == 0)
samdanbury 6:37b6d0d56190 518 led2 = LED2_OFF;
samdanbury 6:37b6d0d56190 519 else if (count % blink_interval == 0)
samdanbury 6:37b6d0d56190 520 led2 = !led2;
samdanbury 6:37b6d0d56190 521 client.yield(10); // allow the MQTT client to receive messages
samdanbury 6:37b6d0d56190 522 }
samdanbury 6:37b6d0d56190 523 }