Ian Craggs / Mbed 2 deprecated IBMIoTClientEthernetExample

IoT Example

Dependencies:   C12832 LM75B MMA7660 MQTT mbed-rtos mbed

Fork of IBMIoTClientEthernetExample by IBM Watson IoT

main.cpp@5:fe907e2e0d6c, 2014-08-21 (annotated)

Committer:
icraggs
Date:
Thu Aug 21 12:42:19 2014 +0000
Revision:
5:fe907e2e0d6c
Parent:
4:77fd4b6ceecb
Child:
6:1a37fe371ee0
Refactoring for K64F

Who changed what in which revision?

UserRevisionLine numberNew contents of line
icraggs 5:fe907e2e0d6c 1 /*******************************************************************************
icraggs 5:fe907e2e0d6c 2 * Copyright (c) 2014 IBM Corp.
icraggs 5:fe907e2e0d6c 3 *
icraggs 5:fe907e2e0d6c 4 * All rights reserved. This program and the accompanying materials
icraggs 5:fe907e2e0d6c 5 * are made available under the terms of the Eclipse Public License v1.0
icraggs 5:fe907e2e0d6c 6 * and Eclipse Distribution License v1.0 which accompany this distribution.
icraggs 5:fe907e2e0d6c 7 *
icraggs 5:fe907e2e0d6c 8 * The Eclipse Public License is available at
icraggs 5:fe907e2e0d6c 9 * http://www.eclipse.org/legal/epl-v10.html
icraggs 5:fe907e2e0d6c 10 * and the Eclipse Distribution License is available at
icraggs 5:fe907e2e0d6c 11 * http://www.eclipse.org/org/documents/edl-v10.php.
icraggs 5:fe907e2e0d6c 12 *
icraggs 5:fe907e2e0d6c 13 * Contributors:
icraggs 5:fe907e2e0d6c 14 * Sam Danbury - initial implementation
icraggs 5:fe907e2e0d6c 15 * Ian Craggs - refactoring to remove STL and other changes
icraggs 5:fe907e2e0d6c 16 *******************************************************************************/
icraggs 5:fe907e2e0d6c 17
icraggs 5:fe907e2e0d6c 18 #include "LM75B.h"
icraggs 5:fe907e2e0d6c 19 #include "MMA7660.h"
icraggs 5:fe907e2e0d6c 20 #include "MQTTClient.h"
icraggs 5:fe907e2e0d6c 21 #include "MQTTEthernet.h"
icraggs 5:fe907e2e0d6c 22 #include "C12832.h"
icraggs 5:fe907e2e0d6c 23 #include "Arial12x12.h"
icraggs 5:fe907e2e0d6c 24 #include "rtos.h"
icraggs 5:fe907e2e0d6c 25
icraggs 5:fe907e2e0d6c 26 // Configuration values needed to connect to IBM IoT Cloud
icraggs 5:fe907e2e0d6c 27 #define QUICKSTARTMODE 1
icraggs 5:fe907e2e0d6c 28 #if (QUICKSTARTMODE)
icraggs 5:fe907e2e0d6c 29 #define ORG "quickstart"
icraggs 5:fe907e2e0d6c 30 #define ID ""
icraggs 5:fe907e2e0d6c 31 #define AUTH_TOKEN ""
icraggs 5:fe907e2e0d6c 32 #define TYPE DEFAULT_TYPE_NAME
icraggs 5:fe907e2e0d6c 33 #else
icraggs 5:fe907e2e0d6c 34 #define ORG "Replace with your org"
icraggs 5:fe907e2e0d6c 35 #define ID "Replace with your id"
icraggs 5:fe907e2e0d6c 36 #define TYPE "Replace with your type"
icraggs 5:fe907e2e0d6c 37 #define AUTH_TOKEN "Replace with your auth-token"
icraggs 5:fe907e2e0d6c 38 #endif
icraggs 5:fe907e2e0d6c 39
icraggs 5:fe907e2e0d6c 40 #define MQTT_PORT 1883
icraggs 5:fe907e2e0d6c 41 #define MQTT_TLS_PORT 8883
icraggs 5:fe907e2e0d6c 42 #define IBM_IOT_PORT MQTT_PORT
icraggs 5:fe907e2e0d6c 43
icraggs 5:fe907e2e0d6c 44 #define MQTT_MAX_PACKET_SIZE 250
icraggs 5:fe907e2e0d6c 45
icraggs 5:fe907e2e0d6c 46 #if defined(TARGET_LPC1768)
icraggs 5:fe907e2e0d6c 47 #warning "Compiling for mbed LPC1768"
icraggs 5:fe907e2e0d6c 48 #include "LPC1768.h"
icraggs 5:fe907e2e0d6c 49 #elif defined(TARGET_K64F)
icraggs 5:fe907e2e0d6c 50 #warning "Compiling for mbed K64F"
icraggs 5:fe907e2e0d6c 51 #include "K64F.h"
icraggs 5:fe907e2e0d6c 52 #endif
icraggs 5:fe907e2e0d6c 53
icraggs 5:fe907e2e0d6c 54 bool quickstartMode = (QUICKSTARTMODE) ? true : false;
icraggs 5:fe907e2e0d6c 55 char org[11] = ORG;
icraggs 5:fe907e2e0d6c 56 char type[30] = TYPE;
icraggs 5:fe907e2e0d6c 57 char id[30] = ID; // mac without colons
icraggs 5:fe907e2e0d6c 58 char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode
icraggs 5:fe907e2e0d6c 59
icraggs 5:fe907e2e0d6c 60 bool connected = false;
icraggs 5:fe907e2e0d6c 61 char* joystickPos = "CENTRE";
icraggs 5:fe907e2e0d6c 62 int blink_interval = 0;
icraggs 5:fe907e2e0d6c 63
icraggs 5:fe907e2e0d6c 64
icraggs 5:fe907e2e0d6c 65 void off()
icraggs 5:fe907e2e0d6c 66 {
icraggs 5:fe907e2e0d6c 67 r = g = b = 1.0; // 1 is off, 0 is full brightness
icraggs 5:fe907e2e0d6c 68 }
icraggs 5:fe907e2e0d6c 69
icraggs 5:fe907e2e0d6c 70 void red()
icraggs 5:fe907e2e0d6c 71 {
icraggs 5:fe907e2e0d6c 72 r = 0.7; g = 1.0; b = 1.0; // 1 is off, 0 is full brightness
icraggs 5:fe907e2e0d6c 73 }
icraggs 5:fe907e2e0d6c 74
icraggs 5:fe907e2e0d6c 75 void yellow()
icraggs 5:fe907e2e0d6c 76 {
icraggs 5:fe907e2e0d6c 77 r = 0.7; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness
icraggs 5:fe907e2e0d6c 78 }
icraggs 5:fe907e2e0d6c 79
icraggs 5:fe907e2e0d6c 80 void green()
icraggs 5:fe907e2e0d6c 81 {
icraggs 5:fe907e2e0d6c 82 r = 1.0; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness
icraggs 5:fe907e2e0d6c 83 }
icraggs 5:fe907e2e0d6c 84
icraggs 5:fe907e2e0d6c 85
icraggs 5:fe907e2e0d6c 86 void flashing_yellow(void const *args)
icraggs 5:fe907e2e0d6c 87 {
icraggs 5:fe907e2e0d6c 88 bool on = false;
icraggs 5:fe907e2e0d6c 89 while (!connected) // flashing yellow only while connecting
icraggs 5:fe907e2e0d6c 90 {
icraggs 5:fe907e2e0d6c 91 on = !on;
icraggs 5:fe907e2e0d6c 92 if (on)
icraggs 5:fe907e2e0d6c 93 yellow();
icraggs 5:fe907e2e0d6c 94 else
icraggs 5:fe907e2e0d6c 95 off();
icraggs 5:fe907e2e0d6c 96 wait(0.5);
icraggs 5:fe907e2e0d6c 97 }
icraggs 5:fe907e2e0d6c 98 }
icraggs 5:fe907e2e0d6c 99
icraggs 5:fe907e2e0d6c 100
icraggs 5:fe907e2e0d6c 101 void flashing_red(void const *args) // to be used when the connection is lost
icraggs 5:fe907e2e0d6c 102 {
icraggs 5:fe907e2e0d6c 103 bool on = false;
icraggs 5:fe907e2e0d6c 104 while (!connected)
icraggs 5:fe907e2e0d6c 105 {
icraggs 5:fe907e2e0d6c 106 on = !on;
icraggs 5:fe907e2e0d6c 107 if (on)
icraggs 5:fe907e2e0d6c 108 red();
icraggs 5:fe907e2e0d6c 109 else
icraggs 5:fe907e2e0d6c 110 off();
icraggs 5:fe907e2e0d6c 111 wait(2.0);
icraggs 5:fe907e2e0d6c 112 }
icraggs 5:fe907e2e0d6c 113 }
icraggs 5:fe907e2e0d6c 114
icraggs 5:fe907e2e0d6c 115
icraggs 5:fe907e2e0d6c 116 void printMenu(int menuItem)
icraggs 5:fe907e2e0d6c 117 {
icraggs 5:fe907e2e0d6c 118 lcd.cls();
icraggs 5:fe907e2e0d6c 119 lcd.locate(0,0);
icraggs 5:fe907e2e0d6c 120 switch (menuItem)
icraggs 5:fe907e2e0d6c 121 {
icraggs 5:fe907e2e0d6c 122 case 0:
icraggs 5:fe907e2e0d6c 123 lcd.printf("IBM IoT Cloud");
icraggs 5:fe907e2e0d6c 124 lcd.locate(0,16);
icraggs 5:fe907e2e0d6c 125 lcd.printf("Scroll with joystick");
icraggs 5:fe907e2e0d6c 126 break;
icraggs 5:fe907e2e0d6c 127 case 1:
icraggs 5:fe907e2e0d6c 128 lcd.printf("Go to:");
icraggs 5:fe907e2e0d6c 129 lcd.locate(0,16);
icraggs 5:fe907e2e0d6c 130 lcd.printf("http://ibm.biz/iotqstart");
icraggs 5:fe907e2e0d6c 131 break;
icraggs 5:fe907e2e0d6c 132 case 2:
icraggs 5:fe907e2e0d6c 133 lcd.printf("Device Identity:");
icraggs 5:fe907e2e0d6c 134 lcd.locate(0,16);
icraggs 5:fe907e2e0d6c 135 lcd.printf("%s", id);
icraggs 5:fe907e2e0d6c 136 break;
icraggs 5:fe907e2e0d6c 137 case 3:
icraggs 5:fe907e2e0d6c 138 lcd.printf("Status:");
icraggs 5:fe907e2e0d6c 139 lcd.locate(0,16);
icraggs 5:fe907e2e0d6c 140 lcd.printf(connected ? "Connected" : "Disconnected");
icraggs 5:fe907e2e0d6c 141 break;
icraggs 5:fe907e2e0d6c 142 }
icraggs 5:fe907e2e0d6c 143 }
icraggs 5:fe907e2e0d6c 144
icraggs 5:fe907e2e0d6c 145
icraggs 5:fe907e2e0d6c 146 void setMenu()
icraggs 5:fe907e2e0d6c 147 {
icraggs 5:fe907e2e0d6c 148 static int menuItem = 0;
icraggs 5:fe907e2e0d6c 149 if (Down)
icraggs 5:fe907e2e0d6c 150 {
icraggs 5:fe907e2e0d6c 151 joystickPos = "DOWN";
icraggs 5:fe907e2e0d6c 152 if (menuItem >= 0 && menuItem < 3)
icraggs 5:fe907e2e0d6c 153 printMenu(++menuItem);
icraggs 5:fe907e2e0d6c 154 }
icraggs 5:fe907e2e0d6c 155 else if (Left)
icraggs 5:fe907e2e0d6c 156 joystickPos = "LEFT";
icraggs 5:fe907e2e0d6c 157 else if (Click)
icraggs 5:fe907e2e0d6c 158 joystickPos = "CLICK";
icraggs 5:fe907e2e0d6c 159 else if (Up)
icraggs 5:fe907e2e0d6c 160 {
icraggs 5:fe907e2e0d6c 161 joystickPos = "UP";
icraggs 5:fe907e2e0d6c 162 if (menuItem <= 3 && menuItem > 0)
icraggs 5:fe907e2e0d6c 163 printMenu(--menuItem);
icraggs 5:fe907e2e0d6c 164 }
icraggs 5:fe907e2e0d6c 165 else if (Right)
icraggs 5:fe907e2e0d6c 166 joystickPos = "RIGHT";
icraggs 5:fe907e2e0d6c 167 else
icraggs 5:fe907e2e0d6c 168 joystickPos = "CENTRE";
icraggs 5:fe907e2e0d6c 169 }
icraggs 5:fe907e2e0d6c 170
icraggs 5:fe907e2e0d6c 171
icraggs 5:fe907e2e0d6c 172 /**
icraggs 5:fe907e2e0d6c 173 * Display a message on the LCD screen prefixed with IBM IoT Cloud
icraggs 5:fe907e2e0d6c 174 */
icraggs 5:fe907e2e0d6c 175 void displayMessage(char* message)
icraggs 5:fe907e2e0d6c 176 {
icraggs 5:fe907e2e0d6c 177 lcd.cls();
icraggs 5:fe907e2e0d6c 178 lcd.locate(0,0);
icraggs 5:fe907e2e0d6c 179 lcd.printf("IBM IoT Cloud");
icraggs 5:fe907e2e0d6c 180 lcd.locate(0,16);
icraggs 5:fe907e2e0d6c 181 lcd.printf(message);
icraggs 5:fe907e2e0d6c 182 }
icraggs 5:fe907e2e0d6c 183
icraggs 5:fe907e2e0d6c 184
icraggs 5:fe907e2e0d6c 185 int connect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
icraggs 5:fe907e2e0d6c 186 {
icraggs 5:fe907e2e0d6c 187 const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com";
icraggs 5:fe907e2e0d6c 188
icraggs 5:fe907e2e0d6c 189 char hostname[strlen(org) + strlen(iot_ibm) + 1];
icraggs 5:fe907e2e0d6c 190 sprintf(hostname, "%s%s", org, iot_ibm);
icraggs 5:fe907e2e0d6c 191 int rc = ipstack->connect(hostname, IBM_IOT_PORT);
icraggs 5:fe907e2e0d6c 192 if (rc != 0)
icraggs 5:fe907e2e0d6c 193 return rc;
icraggs 5:fe907e2e0d6c 194
icraggs 5:fe907e2e0d6c 195 // Construct clientId - d:org:type:id
icraggs 5:fe907e2e0d6c 196 char clientId[strlen(org) + strlen(type) + strlen(id) + 5];
icraggs 5:fe907e2e0d6c 197 sprintf(clientId, "d:%s:%s:%s", org, type, id);
icraggs 5:fe907e2e0d6c 198 DEBUG("clientid is %s\n", clientId);
icraggs 5:fe907e2e0d6c 199
icraggs 5:fe907e2e0d6c 200 // MQTT Connect
icraggs 5:fe907e2e0d6c 201 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
icraggs 5:fe907e2e0d6c 202 data.MQTTVersion = 3;
icraggs 5:fe907e2e0d6c 203 data.clientID.cstring = clientId;
icraggs 5:fe907e2e0d6c 204
icraggs 5:fe907e2e0d6c 205 if (!quickstartMode)
icraggs 5:fe907e2e0d6c 206 {
icraggs 5:fe907e2e0d6c 207 data.username.cstring = "use-token-auth";
icraggs 5:fe907e2e0d6c 208 data.password.cstring = auth_token;
icraggs 5:fe907e2e0d6c 209 }
icraggs 5:fe907e2e0d6c 210
icraggs 5:fe907e2e0d6c 211 if ((rc = client->connect(&data)) == 0)
icraggs 5:fe907e2e0d6c 212 {
icraggs 5:fe907e2e0d6c 213 connected = true;
icraggs 5:fe907e2e0d6c 214 green();
icraggs 5:fe907e2e0d6c 215 displayMessage("Connected");
icraggs 5:fe907e2e0d6c 216 wait(2);
icraggs 5:fe907e2e0d6c 217 displayMessage("Scroll with joystick");
icraggs 5:fe907e2e0d6c 218 }
icraggs 5:fe907e2e0d6c 219 return rc;
icraggs 5:fe907e2e0d6c 220 }
icraggs 5:fe907e2e0d6c 221
icraggs 5:fe907e2e0d6c 222
icraggs 5:fe907e2e0d6c 223 int getConnTimeout(int attemptNumber)
icraggs 5:fe907e2e0d6c 224 { // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute
icraggs 5:fe907e2e0d6c 225 // after 20 attempts, retry every 10 minutes
icraggs 5:fe907e2e0d6c 226 return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600;
icraggs 5:fe907e2e0d6c 227 }
icraggs 5:fe907e2e0d6c 228
icraggs 5:fe907e2e0d6c 229
icraggs 5:fe907e2e0d6c 230 void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
icraggs 5:fe907e2e0d6c 231 {
icraggs 5:fe907e2e0d6c 232 int retryAttempt = 0;
icraggs 5:fe907e2e0d6c 233 connected = false;
icraggs 5:fe907e2e0d6c 234
icraggs 5:fe907e2e0d6c 235 while (connect(client, ipstack) != 0)
icraggs 5:fe907e2e0d6c 236 {
icraggs 5:fe907e2e0d6c 237 #if defined(TARGET_K64F)
icraggs 5:fe907e2e0d6c 238 red();
icraggs 5:fe907e2e0d6c 239 #else
icraggs 5:fe907e2e0d6c 240 Thread red_thread(flashing_red);
icraggs 5:fe907e2e0d6c 241 #endif
icraggs 5:fe907e2e0d6c 242 int timeout = getConnTimeout(++retryAttempt);
icraggs 5:fe907e2e0d6c 243 WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout);
icraggs 5:fe907e2e0d6c 244 wait(timeout);
icraggs 5:fe907e2e0d6c 245 }
icraggs 5:fe907e2e0d6c 246 }
icraggs 5:fe907e2e0d6c 247
icraggs 5:fe907e2e0d6c 248
icraggs 5:fe907e2e0d6c 249 int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack)
icraggs 5:fe907e2e0d6c 250 {
icraggs 5:fe907e2e0d6c 251 MQTT::Message message;
icraggs 5:fe907e2e0d6c 252 char* pubTopic = "iot-2/evt/status/fmt/json";
icraggs 5:fe907e2e0d6c 253
icraggs 5:fe907e2e0d6c 254 char buf[250];
icraggs 5:fe907e2e0d6c 255 sprintf(buf,
icraggs 5:fe907e2e0d6c 256 "{\"d\":{\"myName\":\"IoT mbed\",\"accelX\":%0.4f,\"accelY\":%0.4f,\"accelZ\":%0.4f,\"temp\":%0.4f,\"joystick\":\"%s\",\"potentiometer1\":%0.4f,\"potentiometer2\":%0.4f}}",
icraggs 5:fe907e2e0d6c 257 MMA.x(), MMA.y(), MMA.z(), sensor.temp(), joystickPos, ain1.read(), ain2.read());
icraggs 5:fe907e2e0d6c 258 message.qos = MQTT::QOS0;
icraggs 5:fe907e2e0d6c 259 message.retained = false;
icraggs 5:fe907e2e0d6c 260 message.dup = false;
icraggs 5:fe907e2e0d6c 261 message.payload = (void*)buf;
icraggs 5:fe907e2e0d6c 262 message.payloadlen = strlen(buf);
icraggs 5:fe907e2e0d6c 263
icraggs 5:fe907e2e0d6c 264 LOG("Publishing %s\n", buf);
icraggs 5:fe907e2e0d6c 265 return client->publish(pubTopic, &message);
icraggs 5:fe907e2e0d6c 266 }
icraggs 5:fe907e2e0d6c 267
icraggs 5:fe907e2e0d6c 268
icraggs 5:fe907e2e0d6c 269 #if defined(TARGET_K64F)
icraggs 5:fe907e2e0d6c 270 int getUUID48(char* buf, int buflen)
icraggs 5:fe907e2e0d6c 271 {
icraggs 5:fe907e2e0d6c 272 unsigned int UUID_LOC_WORD0 = 0x40048060;
icraggs 5:fe907e2e0d6c 273 unsigned int UUID_LOC_WORD1 = 0x4004805C;
icraggs 5:fe907e2e0d6c 274
icraggs 5:fe907e2e0d6c 275 // Fetch word 0
icraggs 5:fe907e2e0d6c 276 uint32_t word0 = *(uint32_t *)UUID_LOC_WORD0;
icraggs 5:fe907e2e0d6c 277
icraggs 5:fe907e2e0d6c 278 // Fetch word 1
icraggs 5:fe907e2e0d6c 279 // we only want bottom 16 bits of word1 (MAC bits 32-47)
icraggs 5:fe907e2e0d6c 280 // and bit 9 forced to 1, bit 8 forced to 0
icraggs 5:fe907e2e0d6c 281 // Locally administered MAC, reduced conflicts
icraggs 5:fe907e2e0d6c 282 // http://en.wikipedia.org/wiki/MAC_address
icraggs 5:fe907e2e0d6c 283 uint32_t word1 = *(uint32_t *)UUID_LOC_WORD1;
icraggs 5:fe907e2e0d6c 284 word1 |= 0x00000200;
icraggs 5:fe907e2e0d6c 285 word1 &= 0x0000FEFF;
icraggs 5:fe907e2e0d6c 286
icraggs 5:fe907e2e0d6c 287 int rc = snprintf(buf, buflen, "%4X%08X", word1, word0);
icraggs 5:fe907e2e0d6c 288
icraggs 5:fe907e2e0d6c 289 return rc;
icraggs 5:fe907e2e0d6c 290 }
icraggs 5:fe907e2e0d6c 291 #else
icraggs 5:fe907e2e0d6c 292 char* getMac(EthernetInterface& eth, char* buf, int buflen) // Obtain MAC address
icraggs 5:fe907e2e0d6c 293 {
icraggs 5:fe907e2e0d6c 294 strncpy(buf, eth.getMACAddress(), buflen);
icraggs 5:fe907e2e0d6c 295
icraggs 5:fe907e2e0d6c 296 char* pos; // Remove colons from mac address
icraggs 5:fe907e2e0d6c 297 while ((pos = strchr(buf, ':')) != NULL)
icraggs 5:fe907e2e0d6c 298 memmove(pos, pos + 1, strlen(pos) + 1);
icraggs 5:fe907e2e0d6c 299 return buf;
icraggs 5:fe907e2e0d6c 300 }
icraggs 5:fe907e2e0d6c 301 #endif
icraggs 5:fe907e2e0d6c 302
icraggs 5:fe907e2e0d6c 303
icraggs 5:fe907e2e0d6c 304 void messageArrived(MQTT::MessageData& md)
icraggs 5:fe907e2e0d6c 305 {
icraggs 5:fe907e2e0d6c 306 MQTT::Message &message = md.message;
icraggs 5:fe907e2e0d6c 307 char topic[md.topicName.lenstring.len + 1];
icraggs 5:fe907e2e0d6c 308
icraggs 5:fe907e2e0d6c 309 sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data);
icraggs 5:fe907e2e0d6c 310
icraggs 5:fe907e2e0d6c 311 LOG("Message arrived on topic %s: %.*s\n", topic, message.payloadlen, message.payload);
icraggs 5:fe907e2e0d6c 312
icraggs 5:fe907e2e0d6c 313 // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/
icraggs 5:fe907e2e0d6c 314 char* start = strstr(topic, "/cmd/") + 5;
icraggs 5:fe907e2e0d6c 315 int len = strstr(topic, "/fmt/") - start;
icraggs 5:fe907e2e0d6c 316
icraggs 5:fe907e2e0d6c 317 if (memcmp(start, "blink", len) == 0)
icraggs 5:fe907e2e0d6c 318 {
icraggs 5:fe907e2e0d6c 319 char payload[message.payloadlen + 1];
icraggs 5:fe907e2e0d6c 320 sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload);
icraggs 5:fe907e2e0d6c 321
icraggs 5:fe907e2e0d6c 322 char* pos = strchr(payload, '}');
icraggs 5:fe907e2e0d6c 323 if (pos != NULL)
icraggs 5:fe907e2e0d6c 324 {
icraggs 5:fe907e2e0d6c 325 *pos = '\0';
icraggs 5:fe907e2e0d6c 326 if ((pos = strchr(payload, ':')) != NULL)
icraggs 5:fe907e2e0d6c 327 {
icraggs 5:fe907e2e0d6c 328 int blink_rate = atoi(pos + 1);
icraggs 5:fe907e2e0d6c 329 blink_interval = (blink_rate <= 0) ? 0 : (blink_rate > 50 ? 1 : 50/blink_rate);
icraggs 5:fe907e2e0d6c 330 }
icraggs 5:fe907e2e0d6c 331 }
icraggs 5:fe907e2e0d6c 332 }
icraggs 5:fe907e2e0d6c 333 else
icraggs 5:fe907e2e0d6c 334 WARN("Unsupported command: %.*s\n", len, start);
icraggs 5:fe907e2e0d6c 335 }
icraggs 5:fe907e2e0d6c 336
icraggs 5:fe907e2e0d6c 337
icraggs 5:fe907e2e0d6c 338 int main()
icraggs 5:fe907e2e0d6c 339 {
icraggs 5:fe907e2e0d6c 340 lcd.set_font((unsigned char*) Arial12x12); // Set a nice font for the LCD screen
icraggs 5:fe907e2e0d6c 341
icraggs 5:fe907e2e0d6c 342 led2 = LED2_OFF; // K64F: turn off the main board LED
icraggs 5:fe907e2e0d6c 343
icraggs 5:fe907e2e0d6c 344 displayMessage("Connecting");
icraggs 5:fe907e2e0d6c 345 #if defined(TARGET_K64F)
icraggs 5:fe907e2e0d6c 346 yellow(); // Don't flash on the K64F, because starting a thread causes the EthernetInterface init call to hang
icraggs 5:fe907e2e0d6c 347 #else
icraggs 5:fe907e2e0d6c 348 Thread yellow_thread(flashing_yellow);
icraggs 5:fe907e2e0d6c 349 #endif
icraggs 5:fe907e2e0d6c 350
icraggs 5:fe907e2e0d6c 351 MQTTEthernet ipstack;
icraggs 5:fe907e2e0d6c 352 MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack);
icraggs 5:fe907e2e0d6c 353
icraggs 5:fe907e2e0d6c 354 if (quickstartMode)
icraggs 5:fe907e2e0d6c 355 {
icraggs 5:fe907e2e0d6c 356 #if defined(TARGET_K64F)
icraggs 5:fe907e2e0d6c 357 getUUID48(id, sizeof(id)); // getMac doesn't work on the K64F
icraggs 5:fe907e2e0d6c 358 #else
icraggs 5:fe907e2e0d6c 359 getMac(ipstack.getEth(), id, sizeof(id));
icraggs 5:fe907e2e0d6c 360 #endif
icraggs 5:fe907e2e0d6c 361 }
icraggs 5:fe907e2e0d6c 362
icraggs 5:fe907e2e0d6c 363 attemptConnect(&client, &ipstack);
icraggs 5:fe907e2e0d6c 364
icraggs 5:fe907e2e0d6c 365 if (!quickstartMode)
icraggs 5:fe907e2e0d6c 366 {
icraggs 5:fe907e2e0d6c 367 int rc = 0;
icraggs 5:fe907e2e0d6c 368 if ((rc = client.subscribe("iot-2/cmd/+/fmt/json", MQTT::QOS1, messageArrived)) != 0)
icraggs 5:fe907e2e0d6c 369 WARN("rc from MQTT subscribe is %d\n", rc);
icraggs 5:fe907e2e0d6c 370 }
icraggs 5:fe907e2e0d6c 371
icraggs 5:fe907e2e0d6c 372 blink_interval = 0;
icraggs 5:fe907e2e0d6c 373 int count = 0;
icraggs 5:fe907e2e0d6c 374 while (true)
icraggs 5:fe907e2e0d6c 375 {
icraggs 5:fe907e2e0d6c 376 if (++count == 100)
icraggs 5:fe907e2e0d6c 377 { // Publish a message every second
icraggs 5:fe907e2e0d6c 378 if (publish(&client, &ipstack) != 0)
icraggs 5:fe907e2e0d6c 379 attemptConnect(&client, &ipstack); // if we have lost the connection
icraggs 5:fe907e2e0d6c 380 count = 0;
icraggs 5:fe907e2e0d6c 381 }
icraggs 5:fe907e2e0d6c 382
icraggs 5:fe907e2e0d6c 383 if (blink_interval == 0)
icraggs 5:fe907e2e0d6c 384 led2 = LED2_OFF;
icraggs 5:fe907e2e0d6c 385 else if (count % blink_interval == 0)
icraggs 5:fe907e2e0d6c 386 led2 = !led2;
icraggs 5:fe907e2e0d6c 387 if (count % 20 == 0)
icraggs 5:fe907e2e0d6c 388 setMenu();
icraggs 5:fe907e2e0d6c 389 client.yield(10); // allow the MQTT client to receive messages
icraggs 5:fe907e2e0d6c 390 }
icraggs 5:fe907e2e0d6c 391 }