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@17:74801ec6a672, 2015-08-12 (annotated)

Committer:
icraggs
Date:
Wed Aug 12 16:16:47 2015 +0000
Revision:
17:74801ec6a672
Parent:
16:2420bfbf5f1c
Child:
18:94da9de96d54
Update program revision number to match mbed one

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 17:74801ec6a672 35 #define __APP_SW_REVISION__ "17"
chris 10:0b5e0dfee08e 36
samdanbury 6:37b6d0d56190 37 // Configuration values needed to connect to IBM IoT Cloud
icraggs 8:80d49dd91542 38 #define ORG "quickstart" // For a registered connection, replace with your org
icraggs 8:80d49dd91542 39 #define ID "" // For a registered connection, replace with your id
icraggs 8:80d49dd91542 40 #define AUTH_TOKEN "" // For a registered connection, replace with your auth-token
icraggs 8:80d49dd91542 41 #define TYPE DEFAULT_TYPE_NAME // For a registered connection, replace with your type
samdanbury 6:37b6d0d56190 42
samdanbury 6:37b6d0d56190 43 #define MQTT_PORT 1883
samdanbury 6:37b6d0d56190 44 #define MQTT_TLS_PORT 8883
samdanbury 6:37b6d0d56190 45 #define IBM_IOT_PORT MQTT_PORT
samdanbury 6:37b6d0d56190 46
samdanbury 6:37b6d0d56190 47 #define MQTT_MAX_PACKET_SIZE 250
samdanbury 6:37b6d0d56190 48
mazgch 11:7a6df9a2dcdc 49 #if defined(TARGET_UBLOX_C027)
mazgch 11:7a6df9a2dcdc 50 #warning "Compiling for mbed C027"
mazgch 11:7a6df9a2dcdc 51 #include "C027.h"
mazgch 11:7a6df9a2dcdc 52 #elif defined(TARGET_LPC1768)
samdanbury 6:37b6d0d56190 53 #warning "Compiling for mbed LPC1768"
samdanbury 6:37b6d0d56190 54 #include "LPC1768.h"
samdanbury 6:37b6d0d56190 55 #elif defined(TARGET_K64F)
samdanbury 6:37b6d0d56190 56 #warning "Compiling for mbed K64F"
samdanbury 6:37b6d0d56190 57 #include "K64F.h"
samdanbury 6:37b6d0d56190 58 #endif
samdanbury 6:37b6d0d56190 59
jsutton 14:1f961d19f3cf 60
icraggs 8:80d49dd91542 61 bool quickstartMode = true;
samdanbury 6:37b6d0d56190 62 char org[11] = ORG;
samdanbury 6:37b6d0d56190 63 char type[30] = TYPE;
samdanbury 6:37b6d0d56190 64 char id[30] = ID; // mac without colons
samdanbury 6:37b6d0d56190 65 char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode
samdanbury 6:37b6d0d56190 66
samdanbury 6:37b6d0d56190 67 bool connected = false;
jsutton 14:1f961d19f3cf 68 bool mqttConnecting = false;
jsutton 14:1f961d19f3cf 69 bool netConnected = false;
jsutton 14:1f961d19f3cf 70 bool netConnecting = false;
jsutton 14:1f961d19f3cf 71 bool ethernetInitialising = true;
icraggs 16:2420bfbf5f1c 72 int connack_rc = 0; // MQTT connack return code
jsutton 14:1f961d19f3cf 73 int retryAttempt = 0;
jsutton 14:1f961d19f3cf 74 int menuItem = 0;
jsutton 14:1f961d19f3cf 75
samdanbury 6:37b6d0d56190 76 char* joystickPos = "CENTRE";
samdanbury 6:37b6d0d56190 77 int blink_interval = 0;
samdanbury 6:37b6d0d56190 78
jsutton 13:85801e3b83d3 79 char* ip_addr = "";
jsutton 13:85801e3b83d3 80 char* gateway_addr = "";
jsutton 14:1f961d19f3cf 81 char* host_addr = "";
jsutton 14:1f961d19f3cf 82 int connectTimeout = 1000;
jsutton 14:1f961d19f3cf 83
jsutton 14:1f961d19f3cf 84 // If we wanted to manually set the MAC address,
jsutton 14:1f961d19f3cf 85 // this is how to do it. In this example, we take
jsutton 14:1f961d19f3cf 86 // the original Mbed Set MAC address and combine it
jsutton 14:1f961d19f3cf 87 // with a prefix of our choosing.
jsutton 14:1f961d19f3cf 88 /*
jsutton 14:1f961d19f3cf 89 extern "C" void $Super$$mbed_mac_address(char *s);
jsutton 14:1f961d19f3cf 90 extern "C" void $Sub$$mbed_mac_address(char *s)
jsutton 14:1f961d19f3cf 91 {
jsutton 15:09458079f4bb 92 char originalMAC[6] = "";
jsutton 15:09458079f4bb 93 $Super$$mbed_mac_address(originalMAC);
jsutton 14:1f961d19f3cf 94
jsutton 14:1f961d19f3cf 95 char mac[6];
jsutton 14:1f961d19f3cf 96 mac[0] = 0x00;
jsutton 14:1f961d19f3cf 97 mac[1] = 0x08;
jsutton 14:1f961d19f3cf 98 mac[2] = 0xdc;
jsutton 15:09458079f4bb 99 mac[3] = originalMAC[3];
jsutton 15:09458079f4bb 100 mac[4] = originalMAC[4];
jsutton 15:09458079f4bb 101 mac[5] = originalMAC[5];
jsutton 14:1f961d19f3cf 102 memcpy(s, mac, 6);
jsutton 14:1f961d19f3cf 103 }
jsutton 14:1f961d19f3cf 104 */
jsutton 13:85801e3b83d3 105
samdanbury 6:37b6d0d56190 106
samdanbury 6:37b6d0d56190 107 void off()
samdanbury 6:37b6d0d56190 108 {
samdanbury 6:37b6d0d56190 109 r = g = b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 110 }
samdanbury 6:37b6d0d56190 111
samdanbury 6:37b6d0d56190 112 void red()
samdanbury 6:37b6d0d56190 113 {
samdanbury 6:37b6d0d56190 114 r = 0.7; g = 1.0; b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 115 }
samdanbury 6:37b6d0d56190 116
samdanbury 6:37b6d0d56190 117 void yellow()
samdanbury 6:37b6d0d56190 118 {
samdanbury 6:37b6d0d56190 119 r = 0.7; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 120 }
samdanbury 6:37b6d0d56190 121
samdanbury 6:37b6d0d56190 122 void green()
samdanbury 6:37b6d0d56190 123 {
samdanbury 6:37b6d0d56190 124 r = 1.0; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness
samdanbury 6:37b6d0d56190 125 }
samdanbury 6:37b6d0d56190 126
samdanbury 6:37b6d0d56190 127
samdanbury 6:37b6d0d56190 128 void flashing_yellow(void const *args)
samdanbury 6:37b6d0d56190 129 {
samdanbury 6:37b6d0d56190 130 bool on = false;
icraggs 16:2420bfbf5f1c 131 while (!connected && connack_rc != MQTT_NOT_AUTHORIZED && connack_rc != MQTT_BAD_USERNAME_OR_PASSWORD) // flashing yellow only while connecting
samdanbury 6:37b6d0d56190 132 {
samdanbury 6:37b6d0d56190 133 on = !on;
samdanbury 6:37b6d0d56190 134 if (on)
samdanbury 6:37b6d0d56190 135 yellow();
samdanbury 6:37b6d0d56190 136 else
samdanbury 6:37b6d0d56190 137 off();
samdanbury 6:37b6d0d56190 138 wait(0.5);
samdanbury 6:37b6d0d56190 139 }
samdanbury 6:37b6d0d56190 140 }
samdanbury 6:37b6d0d56190 141
samdanbury 6:37b6d0d56190 142
samdanbury 6:37b6d0d56190 143 void flashing_red(void const *args) // to be used when the connection is lost
samdanbury 6:37b6d0d56190 144 {
samdanbury 6:37b6d0d56190 145 bool on = false;
samdanbury 6:37b6d0d56190 146 while (!connected)
samdanbury 6:37b6d0d56190 147 {
samdanbury 6:37b6d0d56190 148 on = !on;
samdanbury 6:37b6d0d56190 149 if (on)
samdanbury 6:37b6d0d56190 150 red();
samdanbury 6:37b6d0d56190 151 else
samdanbury 6:37b6d0d56190 152 off();
samdanbury 6:37b6d0d56190 153 wait(2.0);
samdanbury 6:37b6d0d56190 154 }
samdanbury 6:37b6d0d56190 155 }
samdanbury 6:37b6d0d56190 156
samdanbury 6:37b6d0d56190 157
samdanbury 6:37b6d0d56190 158 void printMenu(int menuItem)
samdanbury 6:37b6d0d56190 159 {
samdanbury 6:37b6d0d56190 160 lcd.cls();
samdanbury 6:37b6d0d56190 161 lcd.locate(0,0);
samdanbury 6:37b6d0d56190 162 switch (menuItem)
samdanbury 6:37b6d0d56190 163 {
samdanbury 6:37b6d0d56190 164 case 0:
samdanbury 6:37b6d0d56190 165 lcd.printf("IBM IoT Cloud");
samdanbury 6:37b6d0d56190 166 lcd.locate(0,16);
samdanbury 6:37b6d0d56190 167 lcd.printf("Scroll with joystick");
samdanbury 6:37b6d0d56190 168 break;
samdanbury 6:37b6d0d56190 169 case 1:
samdanbury 6:37b6d0d56190 170 lcd.printf("Go to:");
samdanbury 6:37b6d0d56190 171 lcd.locate(0,16);
samdanbury 6:37b6d0d56190 172 lcd.printf("http://ibm.biz/iotqstart");
samdanbury 6:37b6d0d56190 173 break;
samdanbury 6:37b6d0d56190 174 case 2:
samdanbury 6:37b6d0d56190 175 lcd.printf("Device Identity:");
samdanbury 6:37b6d0d56190 176 lcd.locate(0,16);
samdanbury 6:37b6d0d56190 177 lcd.printf("%s", id);
samdanbury 6:37b6d0d56190 178 break;
samdanbury 6:37b6d0d56190 179 case 3:
jsutton 13:85801e3b83d3 180 lcd.printf("MQTT Status:");
samdanbury 6:37b6d0d56190 181 lcd.locate(0,16);
icraggs 16:2420bfbf5f1c 182 if (mqttConnecting)
jsutton 14:1f961d19f3cf 183 lcd.printf("Connecting... %d/5", retryAttempt);
icraggs 16:2420bfbf5f1c 184 else
icraggs 16:2420bfbf5f1c 185 {
icraggs 16:2420bfbf5f1c 186 if (connected)
icraggs 16:2420bfbf5f1c 187 lcd.printf("Connected");
icraggs 16:2420bfbf5f1c 188 else
icraggs 16:2420bfbf5f1c 189 {
icraggs 16:2420bfbf5f1c 190 switch (connack_rc)
icraggs 16:2420bfbf5f1c 191 {
icraggs 16:2420bfbf5f1c 192 case MQTT_CLIENTID_REJECTED:
icraggs 16:2420bfbf5f1c 193 lcd.printf("Clientid rejected");
icraggs 16:2420bfbf5f1c 194 break;
icraggs 16:2420bfbf5f1c 195 case MQTT_BAD_USERNAME_OR_PASSWORD:
icraggs 16:2420bfbf5f1c 196 lcd.printf("Invalid username or password");
icraggs 16:2420bfbf5f1c 197 break;
icraggs 16:2420bfbf5f1c 198 case MQTT_NOT_AUTHORIZED:
icraggs 16:2420bfbf5f1c 199 lcd.printf("Not authorized");
icraggs 16:2420bfbf5f1c 200 break;
icraggs 16:2420bfbf5f1c 201 default:
icraggs 16:2420bfbf5f1c 202 lcd.printf("Disconnected");
icraggs 16:2420bfbf5f1c 203 }
icraggs 16:2420bfbf5f1c 204 }
jsutton 14:1f961d19f3cf 205 }
samdanbury 6:37b6d0d56190 206 break;
chris 10:0b5e0dfee08e 207 case 4:
jsutton 14:1f961d19f3cf 208 lcd.printf("Ethernet State:");
jsutton 14:1f961d19f3cf 209 lcd.locate(0,16);
jsutton 14:1f961d19f3cf 210 lcd.printf(ethernetInitialising ? "Initialising..." : "Initialised");
jsutton 14:1f961d19f3cf 211 break;
jsutton 14:1f961d19f3cf 212 case 5:
jsutton 13:85801e3b83d3 213 lcd.printf("Socket State:");
jsutton 13:85801e3b83d3 214 lcd.locate(0,16);
icraggs 16:2420bfbf5f1c 215 if (netConnecting)
jsutton 14:1f961d19f3cf 216 lcd.printf("Connecting... %d/5", retryAttempt);
icraggs 16:2420bfbf5f1c 217 else
jsutton 14:1f961d19f3cf 218 lcd.printf(netConnected ? "Connected" : "Disconnected");
jsutton 13:85801e3b83d3 219 break;
jsutton 14:1f961d19f3cf 220 case 6:
jsutton 13:85801e3b83d3 221 lcd.printf("IP Address:");
jsutton 13:85801e3b83d3 222 lcd.locate(0,16);
jsutton 13:85801e3b83d3 223 lcd.printf("%s", ip_addr);
jsutton 13:85801e3b83d3 224 break;
jsutton 14:1f961d19f3cf 225 case 7:
jsutton 13:85801e3b83d3 226 lcd.printf("Gateway:");
jsutton 13:85801e3b83d3 227 lcd.locate(0,16);
icraggs 16:2420bfbf5f1c 228 lcd.printf("%s", gateway_addr);
jsutton 13:85801e3b83d3 229 break;
jsutton 14:1f961d19f3cf 230 case 8:
chris 10:0b5e0dfee08e 231 lcd.printf("App version:");
chris 10:0b5e0dfee08e 232 lcd.locate(0,16);
icraggs 16:2420bfbf5f1c 233 lcd.printf("%s", __APP_SW_REVISION__);
chris 10:0b5e0dfee08e 234 break;
jsutton 14:1f961d19f3cf 235 case 9:
jsutton 14:1f961d19f3cf 236 lcd.printf("Current Timeout:");
jsutton 14:1f961d19f3cf 237 lcd.locate(0,16);
icraggs 16:2420bfbf5f1c 238 lcd.printf("%d ms", connectTimeout);
jsutton 14:1f961d19f3cf 239 break;
samdanbury 6:37b6d0d56190 240 }
samdanbury 6:37b6d0d56190 241 }
samdanbury 6:37b6d0d56190 242
samdanbury 6:37b6d0d56190 243
samdanbury 6:37b6d0d56190 244 void setMenu()
samdanbury 6:37b6d0d56190 245 {
jsutton 14:1f961d19f3cf 246
samdanbury 6:37b6d0d56190 247 if (Down)
samdanbury 6:37b6d0d56190 248 {
samdanbury 6:37b6d0d56190 249 joystickPos = "DOWN";
jsutton 14:1f961d19f3cf 250 if (menuItem >= 0 && menuItem < 9)
samdanbury 6:37b6d0d56190 251 printMenu(++menuItem);
samdanbury 6:37b6d0d56190 252 }
samdanbury 6:37b6d0d56190 253 else if (Left)
samdanbury 6:37b6d0d56190 254 joystickPos = "LEFT";
samdanbury 6:37b6d0d56190 255 else if (Click)
samdanbury 6:37b6d0d56190 256 joystickPos = "CLICK";
samdanbury 6:37b6d0d56190 257 else if (Up)
samdanbury 6:37b6d0d56190 258 {
samdanbury 6:37b6d0d56190 259 joystickPos = "UP";
jsutton 14:1f961d19f3cf 260 if (menuItem <= 9 && menuItem > 0)
samdanbury 6:37b6d0d56190 261 printMenu(--menuItem);
samdanbury 6:37b6d0d56190 262 }
samdanbury 6:37b6d0d56190 263 else if (Right)
samdanbury 6:37b6d0d56190 264 joystickPos = "RIGHT";
samdanbury 6:37b6d0d56190 265 else
samdanbury 6:37b6d0d56190 266 joystickPos = "CENTRE";
samdanbury 6:37b6d0d56190 267 }
samdanbury 6:37b6d0d56190 268
jsutton 13:85801e3b83d3 269 void menu_loop(void const *args)
jsutton 13:85801e3b83d3 270 {
jsutton 14:1f961d19f3cf 271 int count = 0;
icraggs 16:2420bfbf5f1c 272 while(true)
icraggs 16:2420bfbf5f1c 273 {
jsutton 13:85801e3b83d3 274 setMenu();
icraggs 16:2420bfbf5f1c 275 if (++count % 10 == 0)
jsutton 14:1f961d19f3cf 276 printMenu(menuItem);
jsutton 14:1f961d19f3cf 277 Thread::wait(100);
jsutton 13:85801e3b83d3 278 }
jsutton 13:85801e3b83d3 279 }
jsutton 13:85801e3b83d3 280
samdanbury 6:37b6d0d56190 281
samdanbury 6:37b6d0d56190 282 /**
samdanbury 6:37b6d0d56190 283 * Display a message on the LCD screen prefixed with IBM IoT Cloud
samdanbury 6:37b6d0d56190 284 */
samdanbury 6:37b6d0d56190 285 void displayMessage(char* message)
samdanbury 6:37b6d0d56190 286 {
samdanbury 6:37b6d0d56190 287 lcd.cls();
samdanbury 6:37b6d0d56190 288 lcd.locate(0,0);
samdanbury 6:37b6d0d56190 289 lcd.printf("IBM IoT Cloud");
samdanbury 6:37b6d0d56190 290 lcd.locate(0,16);
samdanbury 6:37b6d0d56190 291 lcd.printf(message);
samdanbury 6:37b6d0d56190 292 }
samdanbury 6:37b6d0d56190 293
samdanbury 6:37b6d0d56190 294
samdanbury 6:37b6d0d56190 295 int connect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
samdanbury 6:37b6d0d56190 296 {
samdanbury 6:37b6d0d56190 297 const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com";
samdanbury 6:37b6d0d56190 298
samdanbury 6:37b6d0d56190 299 char hostname[strlen(org) + strlen(iot_ibm) + 1];
samdanbury 6:37b6d0d56190 300 sprintf(hostname, "%s%s", org, iot_ibm);
jsutton 13:85801e3b83d3 301 EthernetInterface& eth = ipstack->getEth();
jsutton 13:85801e3b83d3 302 ip_addr = eth.getIPAddress();
jsutton 13:85801e3b83d3 303 gateway_addr = eth.getGateway();
jsutton 14:1f961d19f3cf 304
jsutton 14:1f961d19f3cf 305 // Construct clientId - d:org:type:id
jsutton 14:1f961d19f3cf 306 char clientId[strlen(org) + strlen(type) + strlen(id) + 5];
jsutton 14:1f961d19f3cf 307 sprintf(clientId, "d:%s:%s:%s", org, type, id);
jsutton 14:1f961d19f3cf 308
icraggs 16:2420bfbf5f1c 309 // Network debug statements
jsutton 14:1f961d19f3cf 310 LOG("=====================================\n");
jsutton 14:1f961d19f3cf 311 LOG("Connecting Ethernet.\n");
jsutton 14:1f961d19f3cf 312 LOG("IP ADDRESS: %s\n", eth.getIPAddress());
jsutton 14:1f961d19f3cf 313 LOG("MAC ADDRESS: %s\n", eth.getMACAddress());
jsutton 14:1f961d19f3cf 314 LOG("Gateway: %s\n", eth.getGateway());
jsutton 14:1f961d19f3cf 315 LOG("Network Mask: %s\n", eth.getNetworkMask());
jsutton 14:1f961d19f3cf 316 LOG("Server Hostname: %s\n", hostname);
jsutton 14:1f961d19f3cf 317 LOG("Client ID: %s\n", clientId);
jsutton 14:1f961d19f3cf 318 LOG("=====================================\n");
jsutton 14:1f961d19f3cf 319
jsutton 14:1f961d19f3cf 320 netConnecting = true;
jsutton 14:1f961d19f3cf 321 int rc = ipstack->connect(hostname, IBM_IOT_PORT, connectTimeout);
icraggs 16:2420bfbf5f1c 322 if (rc != 0)
icraggs 16:2420bfbf5f1c 323 {
jsutton 13:85801e3b83d3 324 WARN("IP Stack returned: %d\n", rc);
samdanbury 6:37b6d0d56190 325 return rc;
jsutton 13:85801e3b83d3 326 }
jsutton 13:85801e3b83d3 327 netConnected = true;
jsutton 14:1f961d19f3cf 328 netConnecting = false;
jsutton 14:1f961d19f3cf 329
samdanbury 6:37b6d0d56190 330 // MQTT Connect
jsutton 14:1f961d19f3cf 331 mqttConnecting = true;
samdanbury 6:37b6d0d56190 332 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
samdanbury 6:37b6d0d56190 333 data.MQTTVersion = 3;
samdanbury 6:37b6d0d56190 334 data.clientID.cstring = clientId;
samdanbury 6:37b6d0d56190 335
samdanbury 6:37b6d0d56190 336 if (!quickstartMode)
samdanbury 6:37b6d0d56190 337 {
samdanbury 6:37b6d0d56190 338 data.username.cstring = "use-token-auth";
samdanbury 6:37b6d0d56190 339 data.password.cstring = auth_token;
samdanbury 6:37b6d0d56190 340 }
samdanbury 6:37b6d0d56190 341
icraggs 8:80d49dd91542 342 if ((rc = client->connect(data)) == 0)
samdanbury 6:37b6d0d56190 343 {
samdanbury 6:37b6d0d56190 344 connected = true;
samdanbury 6:37b6d0d56190 345 green();
samdanbury 6:37b6d0d56190 346 displayMessage("Connected");
jsutton 13:85801e3b83d3 347 wait(1);
samdanbury 6:37b6d0d56190 348 displayMessage("Scroll with joystick");
samdanbury 6:37b6d0d56190 349 }
icraggs 16:2420bfbf5f1c 350 else
icraggs 16:2420bfbf5f1c 351 WARN("MQTT connect returned %d\n", rc);
icraggs 16:2420bfbf5f1c 352 if (rc >= 0)
icraggs 16:2420bfbf5f1c 353 connack_rc = rc;
jsutton 14:1f961d19f3cf 354 mqttConnecting = false;
samdanbury 6:37b6d0d56190 355 return rc;
samdanbury 6:37b6d0d56190 356 }
samdanbury 6:37b6d0d56190 357
samdanbury 6:37b6d0d56190 358
samdanbury 6:37b6d0d56190 359 int getConnTimeout(int attemptNumber)
samdanbury 6:37b6d0d56190 360 { // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute
samdanbury 6:37b6d0d56190 361 // after 20 attempts, retry every 10 minutes
samdanbury 6:37b6d0d56190 362 return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600;
samdanbury 6:37b6d0d56190 363 }
samdanbury 6:37b6d0d56190 364
samdanbury 6:37b6d0d56190 365
samdanbury 6:37b6d0d56190 366 void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
samdanbury 6:37b6d0d56190 367 {
samdanbury 6:37b6d0d56190 368 connected = false;
icraggs 16:2420bfbf5f1c 369
icraggs 8:80d49dd91542 370 // make sure a cable is connected before starting to connect
icraggs 16:2420bfbf5f1c 371 while (!linkStatus())
icraggs 16:2420bfbf5f1c 372 {
icraggs 8:80d49dd91542 373 wait(1.0f);
icraggs 8:80d49dd91542 374 WARN("Ethernet link not present. Check cable connection\n");
icraggs 8:80d49dd91542 375 }
samdanbury 6:37b6d0d56190 376
icraggs 16:2420bfbf5f1c 377 while (connect(client, ipstack) != MQTT_CONNECTION_ACCEPTED)
samdanbury 6:37b6d0d56190 378 {
icraggs 16:2420bfbf5f1c 379 if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD)
icraggs 16:2420bfbf5f1c 380 return; // don't reattempt to connect if credentials are wrong
icraggs 16:2420bfbf5f1c 381
samdanbury 6:37b6d0d56190 382 Thread red_thread(flashing_red);
chris 12:8b480eb8a496 383
samdanbury 6:37b6d0d56190 384 int timeout = getConnTimeout(++retryAttempt);
samdanbury 6:37b6d0d56190 385 WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout);
icraggs 8:80d49dd91542 386
icraggs 8:80d49dd91542 387 // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed
icraggs 8:80d49dd91542 388 // or maybe just add the proper members to do this disconnect and call attemptConnect(...)
icraggs 8:80d49dd91542 389
icraggs 8:80d49dd91542 390 // this works - reset the system when the retry count gets to a threshold
icraggs 8:80d49dd91542 391 if (retryAttempt == 5)
icraggs 8:80d49dd91542 392 NVIC_SystemReset();
icraggs 8:80d49dd91542 393 else
icraggs 8:80d49dd91542 394 wait(timeout);
samdanbury 6:37b6d0d56190 395 }
samdanbury 6:37b6d0d56190 396 }
samdanbury 6:37b6d0d56190 397
samdanbury 6:37b6d0d56190 398
samdanbury 6:37b6d0d56190 399 int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
samdanbury 6:37b6d0d56190 400 {
samdanbury 6:37b6d0d56190 401 MQTT::Message message;
samdanbury 6:37b6d0d56190 402 char* pubTopic = "iot-2/evt/status/fmt/json";
samdanbury 6:37b6d0d56190 403
samdanbury 6:37b6d0d56190 404 char buf[250];
samdanbury 6:37b6d0d56190 405 sprintf(buf,
samdanbury 6:37b6d0d56190 406 "{\"d\":{\"myName\":\"IoT mbed\",\"accelX\":%0.4f,\"accelY\":%0.4f,\"accelZ\":%0.4f,\"temp\":%0.4f,\"joystick\":\"%s\",\"potentiometer1\":%0.4f,\"potentiometer2\":%0.4f}}",
samdanbury 6:37b6d0d56190 407 MMA.x(), MMA.y(), MMA.z(), sensor.temp(), joystickPos, ain1.read(), ain2.read());
samdanbury 6:37b6d0d56190 408 message.qos = MQTT::QOS0;
samdanbury 6:37b6d0d56190 409 message.retained = false;
samdanbury 6:37b6d0d56190 410 message.dup = false;
samdanbury 6:37b6d0d56190 411 message.payload = (void*)buf;
samdanbury 6:37b6d0d56190 412 message.payloadlen = strlen(buf);
samdanbury 6:37b6d0d56190 413
samdanbury 6:37b6d0d56190 414 LOG("Publishing %s\n", buf);
icraggs 8:80d49dd91542 415 return client->publish(pubTopic, message);
samdanbury 6:37b6d0d56190 416 }
samdanbury 6:37b6d0d56190 417
samdanbury 6:37b6d0d56190 418
samdanbury 6:37b6d0d56190 419 char* getMac(EthernetInterface& eth, char* buf, int buflen) // Obtain MAC address
samdanbury 6:37b6d0d56190 420 {
samdanbury 6:37b6d0d56190 421 strncpy(buf, eth.getMACAddress(), buflen);
samdanbury 6:37b6d0d56190 422
samdanbury 6:37b6d0d56190 423 char* pos; // Remove colons from mac address
samdanbury 6:37b6d0d56190 424 while ((pos = strchr(buf, ':')) != NULL)
samdanbury 6:37b6d0d56190 425 memmove(pos, pos + 1, strlen(pos) + 1);
samdanbury 6:37b6d0d56190 426 return buf;
samdanbury 6:37b6d0d56190 427 }
chris 12:8b480eb8a496 428
samdanbury 6:37b6d0d56190 429
samdanbury 6:37b6d0d56190 430 void messageArrived(MQTT::MessageData& md)
samdanbury 6:37b6d0d56190 431 {
samdanbury 6:37b6d0d56190 432 MQTT::Message &message = md.message;
samdanbury 6:37b6d0d56190 433 char topic[md.topicName.lenstring.len + 1];
samdanbury 6:37b6d0d56190 434
samdanbury 6:37b6d0d56190 435 sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data);
samdanbury 6:37b6d0d56190 436
samdanbury 6:37b6d0d56190 437 LOG("Message arrived on topic %s: %.*s\n", topic, message.payloadlen, message.payload);
samdanbury 6:37b6d0d56190 438
samdanbury 6:37b6d0d56190 439 // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/
samdanbury 6:37b6d0d56190 440 char* start = strstr(topic, "/cmd/") + 5;
samdanbury 6:37b6d0d56190 441 int len = strstr(topic, "/fmt/") - start;
samdanbury 6:37b6d0d56190 442
samdanbury 6:37b6d0d56190 443 if (memcmp(start, "blink", len) == 0)
samdanbury 6:37b6d0d56190 444 {
samdanbury 6:37b6d0d56190 445 char payload[message.payloadlen + 1];
samdanbury 6:37b6d0d56190 446 sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload);
samdanbury 6:37b6d0d56190 447
samdanbury 6:37b6d0d56190 448 char* pos = strchr(payload, '}');
samdanbury 6:37b6d0d56190 449 if (pos != NULL)
samdanbury 6:37b6d0d56190 450 {
samdanbury 6:37b6d0d56190 451 *pos = '\0';
samdanbury 6:37b6d0d56190 452 if ((pos = strchr(payload, ':')) != NULL)
samdanbury 6:37b6d0d56190 453 {
samdanbury 6:37b6d0d56190 454 int blink_rate = atoi(pos + 1);
samdanbury 6:37b6d0d56190 455 blink_interval = (blink_rate <= 0) ? 0 : (blink_rate > 50 ? 1 : 50/blink_rate);
samdanbury 6:37b6d0d56190 456 }
samdanbury 6:37b6d0d56190 457 }
samdanbury 6:37b6d0d56190 458 }
samdanbury 6:37b6d0d56190 459 else
samdanbury 6:37b6d0d56190 460 WARN("Unsupported command: %.*s\n", len, start);
samdanbury 6:37b6d0d56190 461 }
samdanbury 6:37b6d0d56190 462
samdanbury 6:37b6d0d56190 463
samdanbury 6:37b6d0d56190 464 int main()
samdanbury 6:37b6d0d56190 465 {
icraggs 8:80d49dd91542 466 quickstartMode = (strcmp(org, "quickstart") == 0);
icraggs 8:80d49dd91542 467
samdanbury 6:37b6d0d56190 468 lcd.set_font((unsigned char*) Arial12x12); // Set a nice font for the LCD screen
samdanbury 6:37b6d0d56190 469
samdanbury 6:37b6d0d56190 470 led2 = LED2_OFF; // K64F: turn off the main board LED
samdanbury 6:37b6d0d56190 471
samdanbury 6:37b6d0d56190 472 displayMessage("Connecting");
jsutton 13:85801e3b83d3 473 Thread yellow_thread(flashing_yellow);
jsutton 13:85801e3b83d3 474 Thread menu_thread(menu_loop);
jsutton 13:85801e3b83d3 475
jsutton 14:1f961d19f3cf 476 LOG("***** IBM IoT Client Ethernet Example *****\n");
samdanbury 6:37b6d0d56190 477 MQTTEthernet ipstack;
jsutton 14:1f961d19f3cf 478 ethernetInitialising = false;
samdanbury 6:37b6d0d56190 479 MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack);
icraggs 16:2420bfbf5f1c 480 LOG("Ethernet Initialised.\n");
jsutton 13:85801e3b83d3 481
samdanbury 6:37b6d0d56190 482 if (quickstartMode)
icraggs 16:2420bfbf5f1c 483 getMac(ipstack.getEth(), id, sizeof(id));
icraggs 16:2420bfbf5f1c 484
icraggs 16:2420bfbf5f1c 485 attemptConnect(&client, &ipstack);
icraggs 16:2420bfbf5f1c 486
icraggs 16:2420bfbf5f1c 487 if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD)
samdanbury 6:37b6d0d56190 488 {
icraggs 16:2420bfbf5f1c 489 red();
icraggs 16:2420bfbf5f1c 490 while (true)
icraggs 16:2420bfbf5f1c 491 wait(1.0); // Permanent failures - don't retry
samdanbury 6:37b6d0d56190 492 }
icraggs 16:2420bfbf5f1c 493
samdanbury 6:37b6d0d56190 494 if (!quickstartMode)
samdanbury 6:37b6d0d56190 495 {
samdanbury 6:37b6d0d56190 496 int rc = 0;
samdanbury 6:37b6d0d56190 497 if ((rc = client.subscribe("iot-2/cmd/+/fmt/json", MQTT::QOS1, messageArrived)) != 0)
samdanbury 6:37b6d0d56190 498 WARN("rc from MQTT subscribe is %d\n", rc);
samdanbury 6:37b6d0d56190 499 }
samdanbury 6:37b6d0d56190 500
samdanbury 6:37b6d0d56190 501 blink_interval = 0;
samdanbury 6:37b6d0d56190 502 int count = 0;
samdanbury 6:37b6d0d56190 503 while (true)
samdanbury 6:37b6d0d56190 504 {
samdanbury 6:37b6d0d56190 505 if (++count == 100)
samdanbury 6:37b6d0d56190 506 { // Publish a message every second
samdanbury 6:37b6d0d56190 507 if (publish(&client, &ipstack) != 0)
samdanbury 6:37b6d0d56190 508 attemptConnect(&client, &ipstack); // if we have lost the connection
samdanbury 6:37b6d0d56190 509 count = 0;
samdanbury 6:37b6d0d56190 510 }
samdanbury 6:37b6d0d56190 511
samdanbury 6:37b6d0d56190 512 if (blink_interval == 0)
samdanbury 6:37b6d0d56190 513 led2 = LED2_OFF;
samdanbury 6:37b6d0d56190 514 else if (count % blink_interval == 0)
samdanbury 6:37b6d0d56190 515 led2 = !led2;
samdanbury 6:37b6d0d56190 516 client.yield(10); // allow the MQTT client to receive messages
samdanbury 6:37b6d0d56190 517 }
samdanbury 6:37b6d0d56190 518 }