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bluemix rfid
Dependencies: C12832 EthernetInterface IBMIoTClientEthernetExample LM75B MMA7660 MQTT iBMrfid mbed-rtos mbed
Fork of IBMIoTClientEthernetExample by
main.cpp@9:58eb378727d9, 2014-10-14 (annotated)
- Committer:
- icraggs
- Date:
- Tue Oct 14 15:43:42 2014 +0000
- Revision:
- 9:58eb378727d9
- Parent:
- 8:80d49dd91542
- Child:
- 10:0b5e0dfee08e
Make sure device id is lower case
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
samdanbury | 6:37b6d0d56190 | 1 | /******************************************************************************* |
samdanbury | 6:37b6d0d56190 | 2 | * Copyright (c) 2014 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. |
samdanbury | 6:37b6d0d56190 | 17 | *******************************************************************************/ |
samdanbury | 6:37b6d0d56190 | 18 | |
samdanbury | 6:37b6d0d56190 | 19 | #include "LM75B.h" |
samdanbury | 6:37b6d0d56190 | 20 | #include "MMA7660.h" |
samdanbury | 6:37b6d0d56190 | 21 | #include "MQTTClient.h" |
samdanbury | 6:37b6d0d56190 | 22 | #include "MQTTEthernet.h" |
samdanbury | 6:37b6d0d56190 | 23 | #include "C12832.h" |
samdanbury | 6:37b6d0d56190 | 24 | #include "Arial12x12.h" |
samdanbury | 6:37b6d0d56190 | 25 | #include "rtos.h" |
samdanbury | 6:37b6d0d56190 | 26 | |
samdanbury | 6:37b6d0d56190 | 27 | // Configuration values needed to connect to IBM IoT Cloud |
icraggs | 8:80d49dd91542 | 28 | #define ORG "quickstart" // For a registered connection, replace with your org |
icraggs | 8:80d49dd91542 | 29 | #define ID "" // For a registered connection, replace with your id |
icraggs | 8:80d49dd91542 | 30 | #define AUTH_TOKEN "" // For a registered connection, replace with your auth-token |
icraggs | 8:80d49dd91542 | 31 | #define TYPE DEFAULT_TYPE_NAME // For a registered connection, replace with your type |
samdanbury | 6:37b6d0d56190 | 32 | |
samdanbury | 6:37b6d0d56190 | 33 | #define MQTT_PORT 1883 |
samdanbury | 6:37b6d0d56190 | 34 | #define MQTT_TLS_PORT 8883 |
samdanbury | 6:37b6d0d56190 | 35 | #define IBM_IOT_PORT MQTT_PORT |
samdanbury | 6:37b6d0d56190 | 36 | |
samdanbury | 6:37b6d0d56190 | 37 | #define MQTT_MAX_PACKET_SIZE 250 |
samdanbury | 6:37b6d0d56190 | 38 | |
samdanbury | 6:37b6d0d56190 | 39 | #if defined(TARGET_LPC1768) |
samdanbury | 6:37b6d0d56190 | 40 | #warning "Compiling for mbed LPC1768" |
samdanbury | 6:37b6d0d56190 | 41 | #include "LPC1768.h" |
samdanbury | 6:37b6d0d56190 | 42 | #elif defined(TARGET_K64F) |
samdanbury | 6:37b6d0d56190 | 43 | #warning "Compiling for mbed K64F" |
samdanbury | 6:37b6d0d56190 | 44 | #include "K64F.h" |
samdanbury | 6:37b6d0d56190 | 45 | #endif |
samdanbury | 6:37b6d0d56190 | 46 | |
icraggs | 8:80d49dd91542 | 47 | bool quickstartMode = true; |
samdanbury | 6:37b6d0d56190 | 48 | char org[11] = ORG; |
samdanbury | 6:37b6d0d56190 | 49 | char type[30] = TYPE; |
samdanbury | 6:37b6d0d56190 | 50 | char id[30] = ID; // mac without colons |
samdanbury | 6:37b6d0d56190 | 51 | char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode |
samdanbury | 6:37b6d0d56190 | 52 | |
samdanbury | 6:37b6d0d56190 | 53 | bool connected = false; |
samdanbury | 6:37b6d0d56190 | 54 | char* joystickPos = "CENTRE"; |
samdanbury | 6:37b6d0d56190 | 55 | int blink_interval = 0; |
samdanbury | 6:37b6d0d56190 | 56 | |
samdanbury | 6:37b6d0d56190 | 57 | |
samdanbury | 6:37b6d0d56190 | 58 | void off() |
samdanbury | 6:37b6d0d56190 | 59 | { |
samdanbury | 6:37b6d0d56190 | 60 | r = g = b = 1.0; // 1 is off, 0 is full brightness |
samdanbury | 6:37b6d0d56190 | 61 | } |
samdanbury | 6:37b6d0d56190 | 62 | |
samdanbury | 6:37b6d0d56190 | 63 | void red() |
samdanbury | 6:37b6d0d56190 | 64 | { |
samdanbury | 6:37b6d0d56190 | 65 | r = 0.7; g = 1.0; b = 1.0; // 1 is off, 0 is full brightness |
samdanbury | 6:37b6d0d56190 | 66 | } |
samdanbury | 6:37b6d0d56190 | 67 | |
samdanbury | 6:37b6d0d56190 | 68 | void yellow() |
samdanbury | 6:37b6d0d56190 | 69 | { |
samdanbury | 6:37b6d0d56190 | 70 | r = 0.7; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness |
samdanbury | 6:37b6d0d56190 | 71 | } |
samdanbury | 6:37b6d0d56190 | 72 | |
samdanbury | 6:37b6d0d56190 | 73 | void green() |
samdanbury | 6:37b6d0d56190 | 74 | { |
samdanbury | 6:37b6d0d56190 | 75 | r = 1.0; g = 0.7; b = 1.0; // 1 is off, 0 is full brightness |
samdanbury | 6:37b6d0d56190 | 76 | } |
samdanbury | 6:37b6d0d56190 | 77 | |
samdanbury | 6:37b6d0d56190 | 78 | |
samdanbury | 6:37b6d0d56190 | 79 | void flashing_yellow(void const *args) |
samdanbury | 6:37b6d0d56190 | 80 | { |
samdanbury | 6:37b6d0d56190 | 81 | bool on = false; |
samdanbury | 6:37b6d0d56190 | 82 | while (!connected) // flashing yellow only while connecting |
samdanbury | 6:37b6d0d56190 | 83 | { |
samdanbury | 6:37b6d0d56190 | 84 | on = !on; |
samdanbury | 6:37b6d0d56190 | 85 | if (on) |
samdanbury | 6:37b6d0d56190 | 86 | yellow(); |
samdanbury | 6:37b6d0d56190 | 87 | else |
samdanbury | 6:37b6d0d56190 | 88 | off(); |
samdanbury | 6:37b6d0d56190 | 89 | wait(0.5); |
samdanbury | 6:37b6d0d56190 | 90 | } |
samdanbury | 6:37b6d0d56190 | 91 | } |
samdanbury | 6:37b6d0d56190 | 92 | |
samdanbury | 6:37b6d0d56190 | 93 | |
samdanbury | 6:37b6d0d56190 | 94 | void flashing_red(void const *args) // to be used when the connection is lost |
samdanbury | 6:37b6d0d56190 | 95 | { |
samdanbury | 6:37b6d0d56190 | 96 | bool on = false; |
samdanbury | 6:37b6d0d56190 | 97 | while (!connected) |
samdanbury | 6:37b6d0d56190 | 98 | { |
samdanbury | 6:37b6d0d56190 | 99 | on = !on; |
samdanbury | 6:37b6d0d56190 | 100 | if (on) |
samdanbury | 6:37b6d0d56190 | 101 | red(); |
samdanbury | 6:37b6d0d56190 | 102 | else |
samdanbury | 6:37b6d0d56190 | 103 | off(); |
samdanbury | 6:37b6d0d56190 | 104 | wait(2.0); |
samdanbury | 6:37b6d0d56190 | 105 | } |
samdanbury | 6:37b6d0d56190 | 106 | } |
samdanbury | 6:37b6d0d56190 | 107 | |
samdanbury | 6:37b6d0d56190 | 108 | |
samdanbury | 6:37b6d0d56190 | 109 | void printMenu(int menuItem) |
samdanbury | 6:37b6d0d56190 | 110 | { |
samdanbury | 6:37b6d0d56190 | 111 | lcd.cls(); |
samdanbury | 6:37b6d0d56190 | 112 | lcd.locate(0,0); |
samdanbury | 6:37b6d0d56190 | 113 | switch (menuItem) |
samdanbury | 6:37b6d0d56190 | 114 | { |
samdanbury | 6:37b6d0d56190 | 115 | case 0: |
samdanbury | 6:37b6d0d56190 | 116 | lcd.printf("IBM IoT Cloud"); |
samdanbury | 6:37b6d0d56190 | 117 | lcd.locate(0,16); |
samdanbury | 6:37b6d0d56190 | 118 | lcd.printf("Scroll with joystick"); |
samdanbury | 6:37b6d0d56190 | 119 | break; |
samdanbury | 6:37b6d0d56190 | 120 | case 1: |
samdanbury | 6:37b6d0d56190 | 121 | lcd.printf("Go to:"); |
samdanbury | 6:37b6d0d56190 | 122 | lcd.locate(0,16); |
samdanbury | 6:37b6d0d56190 | 123 | lcd.printf("http://ibm.biz/iotqstart"); |
samdanbury | 6:37b6d0d56190 | 124 | break; |
samdanbury | 6:37b6d0d56190 | 125 | case 2: |
samdanbury | 6:37b6d0d56190 | 126 | lcd.printf("Device Identity:"); |
samdanbury | 6:37b6d0d56190 | 127 | lcd.locate(0,16); |
samdanbury | 6:37b6d0d56190 | 128 | lcd.printf("%s", id); |
samdanbury | 6:37b6d0d56190 | 129 | break; |
samdanbury | 6:37b6d0d56190 | 130 | case 3: |
samdanbury | 6:37b6d0d56190 | 131 | lcd.printf("Status:"); |
samdanbury | 6:37b6d0d56190 | 132 | lcd.locate(0,16); |
samdanbury | 6:37b6d0d56190 | 133 | lcd.printf(connected ? "Connected" : "Disconnected"); |
samdanbury | 6:37b6d0d56190 | 134 | break; |
samdanbury | 6:37b6d0d56190 | 135 | } |
samdanbury | 6:37b6d0d56190 | 136 | } |
samdanbury | 6:37b6d0d56190 | 137 | |
samdanbury | 6:37b6d0d56190 | 138 | |
samdanbury | 6:37b6d0d56190 | 139 | void setMenu() |
samdanbury | 6:37b6d0d56190 | 140 | { |
samdanbury | 6:37b6d0d56190 | 141 | static int menuItem = 0; |
samdanbury | 6:37b6d0d56190 | 142 | if (Down) |
samdanbury | 6:37b6d0d56190 | 143 | { |
samdanbury | 6:37b6d0d56190 | 144 | joystickPos = "DOWN"; |
samdanbury | 6:37b6d0d56190 | 145 | if (menuItem >= 0 && menuItem < 3) |
samdanbury | 6:37b6d0d56190 | 146 | printMenu(++menuItem); |
samdanbury | 6:37b6d0d56190 | 147 | } |
samdanbury | 6:37b6d0d56190 | 148 | else if (Left) |
samdanbury | 6:37b6d0d56190 | 149 | joystickPos = "LEFT"; |
samdanbury | 6:37b6d0d56190 | 150 | else if (Click) |
samdanbury | 6:37b6d0d56190 | 151 | joystickPos = "CLICK"; |
samdanbury | 6:37b6d0d56190 | 152 | else if (Up) |
samdanbury | 6:37b6d0d56190 | 153 | { |
samdanbury | 6:37b6d0d56190 | 154 | joystickPos = "UP"; |
samdanbury | 6:37b6d0d56190 | 155 | if (menuItem <= 3 && menuItem > 0) |
samdanbury | 6:37b6d0d56190 | 156 | printMenu(--menuItem); |
samdanbury | 6:37b6d0d56190 | 157 | } |
samdanbury | 6:37b6d0d56190 | 158 | else if (Right) |
samdanbury | 6:37b6d0d56190 | 159 | joystickPos = "RIGHT"; |
samdanbury | 6:37b6d0d56190 | 160 | else |
samdanbury | 6:37b6d0d56190 | 161 | joystickPos = "CENTRE"; |
samdanbury | 6:37b6d0d56190 | 162 | } |
samdanbury | 6:37b6d0d56190 | 163 | |
samdanbury | 6:37b6d0d56190 | 164 | |
samdanbury | 6:37b6d0d56190 | 165 | /** |
samdanbury | 6:37b6d0d56190 | 166 | * Display a message on the LCD screen prefixed with IBM IoT Cloud |
samdanbury | 6:37b6d0d56190 | 167 | */ |
samdanbury | 6:37b6d0d56190 | 168 | void displayMessage(char* message) |
samdanbury | 6:37b6d0d56190 | 169 | { |
samdanbury | 6:37b6d0d56190 | 170 | lcd.cls(); |
samdanbury | 6:37b6d0d56190 | 171 | lcd.locate(0,0); |
samdanbury | 6:37b6d0d56190 | 172 | lcd.printf("IBM IoT Cloud"); |
samdanbury | 6:37b6d0d56190 | 173 | lcd.locate(0,16); |
samdanbury | 6:37b6d0d56190 | 174 | lcd.printf(message); |
samdanbury | 6:37b6d0d56190 | 175 | } |
samdanbury | 6:37b6d0d56190 | 176 | |
samdanbury | 6:37b6d0d56190 | 177 | |
samdanbury | 6:37b6d0d56190 | 178 | int connect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
samdanbury | 6:37b6d0d56190 | 179 | { |
samdanbury | 6:37b6d0d56190 | 180 | const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com"; |
samdanbury | 6:37b6d0d56190 | 181 | |
samdanbury | 6:37b6d0d56190 | 182 | char hostname[strlen(org) + strlen(iot_ibm) + 1]; |
samdanbury | 6:37b6d0d56190 | 183 | sprintf(hostname, "%s%s", org, iot_ibm); |
samdanbury | 6:37b6d0d56190 | 184 | int rc = ipstack->connect(hostname, IBM_IOT_PORT); |
samdanbury | 6:37b6d0d56190 | 185 | if (rc != 0) |
samdanbury | 6:37b6d0d56190 | 186 | return rc; |
samdanbury | 6:37b6d0d56190 | 187 | |
samdanbury | 6:37b6d0d56190 | 188 | // Construct clientId - d:org:type:id |
samdanbury | 6:37b6d0d56190 | 189 | char clientId[strlen(org) + strlen(type) + strlen(id) + 5]; |
samdanbury | 6:37b6d0d56190 | 190 | sprintf(clientId, "d:%s:%s:%s", org, type, id); |
samdanbury | 6:37b6d0d56190 | 191 | DEBUG("clientid is %s\n", clientId); |
samdanbury | 6:37b6d0d56190 | 192 | |
samdanbury | 6:37b6d0d56190 | 193 | // MQTT Connect |
samdanbury | 6:37b6d0d56190 | 194 | MQTTPacket_connectData data = MQTTPacket_connectData_initializer; |
samdanbury | 6:37b6d0d56190 | 195 | data.MQTTVersion = 3; |
samdanbury | 6:37b6d0d56190 | 196 | data.clientID.cstring = clientId; |
samdanbury | 6:37b6d0d56190 | 197 | |
samdanbury | 6:37b6d0d56190 | 198 | if (!quickstartMode) |
samdanbury | 6:37b6d0d56190 | 199 | { |
samdanbury | 6:37b6d0d56190 | 200 | data.username.cstring = "use-token-auth"; |
samdanbury | 6:37b6d0d56190 | 201 | data.password.cstring = auth_token; |
samdanbury | 6:37b6d0d56190 | 202 | } |
samdanbury | 6:37b6d0d56190 | 203 | |
icraggs | 8:80d49dd91542 | 204 | if ((rc = client->connect(data)) == 0) |
samdanbury | 6:37b6d0d56190 | 205 | { |
samdanbury | 6:37b6d0d56190 | 206 | connected = true; |
samdanbury | 6:37b6d0d56190 | 207 | green(); |
samdanbury | 6:37b6d0d56190 | 208 | displayMessage("Connected"); |
samdanbury | 6:37b6d0d56190 | 209 | wait(2); |
samdanbury | 6:37b6d0d56190 | 210 | displayMessage("Scroll with joystick"); |
samdanbury | 6:37b6d0d56190 | 211 | } |
samdanbury | 6:37b6d0d56190 | 212 | return rc; |
samdanbury | 6:37b6d0d56190 | 213 | } |
samdanbury | 6:37b6d0d56190 | 214 | |
samdanbury | 6:37b6d0d56190 | 215 | |
samdanbury | 6:37b6d0d56190 | 216 | int getConnTimeout(int attemptNumber) |
samdanbury | 6:37b6d0d56190 | 217 | { // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute |
samdanbury | 6:37b6d0d56190 | 218 | // after 20 attempts, retry every 10 minutes |
samdanbury | 6:37b6d0d56190 | 219 | return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600; |
samdanbury | 6:37b6d0d56190 | 220 | } |
samdanbury | 6:37b6d0d56190 | 221 | |
samdanbury | 6:37b6d0d56190 | 222 | |
samdanbury | 6:37b6d0d56190 | 223 | void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
samdanbury | 6:37b6d0d56190 | 224 | { |
samdanbury | 6:37b6d0d56190 | 225 | int retryAttempt = 0; |
samdanbury | 6:37b6d0d56190 | 226 | connected = false; |
icraggs | 8:80d49dd91542 | 227 | |
icraggs | 8:80d49dd91542 | 228 | // make sure a cable is connected before starting to connect |
icraggs | 8:80d49dd91542 | 229 | while (!linkStatus()) { |
icraggs | 8:80d49dd91542 | 230 | wait(1.0f); |
icraggs | 8:80d49dd91542 | 231 | WARN("Ethernet link not present. Check cable connection\n"); |
icraggs | 8:80d49dd91542 | 232 | } |
samdanbury | 6:37b6d0d56190 | 233 | |
samdanbury | 6:37b6d0d56190 | 234 | while (connect(client, ipstack) != 0) |
samdanbury | 6:37b6d0d56190 | 235 | { |
samdanbury | 6:37b6d0d56190 | 236 | #if defined(TARGET_K64F) |
samdanbury | 6:37b6d0d56190 | 237 | red(); |
samdanbury | 6:37b6d0d56190 | 238 | #else |
samdanbury | 6:37b6d0d56190 | 239 | Thread red_thread(flashing_red); |
samdanbury | 6:37b6d0d56190 | 240 | #endif |
samdanbury | 6:37b6d0d56190 | 241 | int timeout = getConnTimeout(++retryAttempt); |
samdanbury | 6:37b6d0d56190 | 242 | WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout); |
icraggs | 8:80d49dd91542 | 243 | |
icraggs | 8:80d49dd91542 | 244 | // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed |
icraggs | 8:80d49dd91542 | 245 | // or maybe just add the proper members to do this disconnect and call attemptConnect(...) |
icraggs | 8:80d49dd91542 | 246 | |
icraggs | 8:80d49dd91542 | 247 | // this works - reset the system when the retry count gets to a threshold |
icraggs | 8:80d49dd91542 | 248 | if (retryAttempt == 5) |
icraggs | 8:80d49dd91542 | 249 | NVIC_SystemReset(); |
icraggs | 8:80d49dd91542 | 250 | else |
icraggs | 8:80d49dd91542 | 251 | wait(timeout); |
samdanbury | 6:37b6d0d56190 | 252 | } |
samdanbury | 6:37b6d0d56190 | 253 | } |
samdanbury | 6:37b6d0d56190 | 254 | |
samdanbury | 6:37b6d0d56190 | 255 | |
samdanbury | 6:37b6d0d56190 | 256 | int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
samdanbury | 6:37b6d0d56190 | 257 | { |
samdanbury | 6:37b6d0d56190 | 258 | MQTT::Message message; |
samdanbury | 6:37b6d0d56190 | 259 | char* pubTopic = "iot-2/evt/status/fmt/json"; |
samdanbury | 6:37b6d0d56190 | 260 | |
samdanbury | 6:37b6d0d56190 | 261 | char buf[250]; |
samdanbury | 6:37b6d0d56190 | 262 | sprintf(buf, |
samdanbury | 6:37b6d0d56190 | 263 | "{\"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 | 264 | MMA.x(), MMA.y(), MMA.z(), sensor.temp(), joystickPos, ain1.read(), ain2.read()); |
samdanbury | 6:37b6d0d56190 | 265 | message.qos = MQTT::QOS0; |
samdanbury | 6:37b6d0d56190 | 266 | message.retained = false; |
samdanbury | 6:37b6d0d56190 | 267 | message.dup = false; |
samdanbury | 6:37b6d0d56190 | 268 | message.payload = (void*)buf; |
samdanbury | 6:37b6d0d56190 | 269 | message.payloadlen = strlen(buf); |
samdanbury | 6:37b6d0d56190 | 270 | |
samdanbury | 6:37b6d0d56190 | 271 | LOG("Publishing %s\n", buf); |
icraggs | 8:80d49dd91542 | 272 | return client->publish(pubTopic, message); |
samdanbury | 6:37b6d0d56190 | 273 | } |
samdanbury | 6:37b6d0d56190 | 274 | |
samdanbury | 6:37b6d0d56190 | 275 | |
samdanbury | 6:37b6d0d56190 | 276 | #if defined(TARGET_K64F) |
samdanbury | 6:37b6d0d56190 | 277 | int getUUID48(char* buf, int buflen) |
samdanbury | 6:37b6d0d56190 | 278 | { |
samdanbury | 6:37b6d0d56190 | 279 | unsigned int UUID_LOC_WORD0 = 0x40048060; |
samdanbury | 6:37b6d0d56190 | 280 | unsigned int UUID_LOC_WORD1 = 0x4004805C; |
samdanbury | 6:37b6d0d56190 | 281 | |
samdanbury | 6:37b6d0d56190 | 282 | // Fetch word 0 |
samdanbury | 6:37b6d0d56190 | 283 | uint32_t word0 = *(uint32_t *)UUID_LOC_WORD0; |
samdanbury | 6:37b6d0d56190 | 284 | |
samdanbury | 6:37b6d0d56190 | 285 | // Fetch word 1 |
samdanbury | 6:37b6d0d56190 | 286 | // we only want bottom 16 bits of word1 (MAC bits 32-47) |
samdanbury | 6:37b6d0d56190 | 287 | // and bit 9 forced to 1, bit 8 forced to 0 |
samdanbury | 6:37b6d0d56190 | 288 | // Locally administered MAC, reduced conflicts |
samdanbury | 6:37b6d0d56190 | 289 | // http://en.wikipedia.org/wiki/MAC_address |
samdanbury | 6:37b6d0d56190 | 290 | uint32_t word1 = *(uint32_t *)UUID_LOC_WORD1; |
samdanbury | 6:37b6d0d56190 | 291 | word1 |= 0x00000200; |
samdanbury | 6:37b6d0d56190 | 292 | word1 &= 0x0000FEFF; |
samdanbury | 6:37b6d0d56190 | 293 | |
icraggs | 9:58eb378727d9 | 294 | int rc = snprintf(buf, buflen, "%4x%08x", word1, word0); // Device id must be in lower case |
samdanbury | 6:37b6d0d56190 | 295 | |
samdanbury | 6:37b6d0d56190 | 296 | return rc; |
samdanbury | 6:37b6d0d56190 | 297 | } |
samdanbury | 6:37b6d0d56190 | 298 | #else |
samdanbury | 6:37b6d0d56190 | 299 | char* getMac(EthernetInterface& eth, char* buf, int buflen) // Obtain MAC address |
samdanbury | 6:37b6d0d56190 | 300 | { |
samdanbury | 6:37b6d0d56190 | 301 | strncpy(buf, eth.getMACAddress(), buflen); |
samdanbury | 6:37b6d0d56190 | 302 | |
samdanbury | 6:37b6d0d56190 | 303 | char* pos; // Remove colons from mac address |
samdanbury | 6:37b6d0d56190 | 304 | while ((pos = strchr(buf, ':')) != NULL) |
samdanbury | 6:37b6d0d56190 | 305 | memmove(pos, pos + 1, strlen(pos) + 1); |
samdanbury | 6:37b6d0d56190 | 306 | return buf; |
samdanbury | 6:37b6d0d56190 | 307 | } |
samdanbury | 6:37b6d0d56190 | 308 | #endif |
samdanbury | 6:37b6d0d56190 | 309 | |
samdanbury | 6:37b6d0d56190 | 310 | |
samdanbury | 6:37b6d0d56190 | 311 | void messageArrived(MQTT::MessageData& md) |
samdanbury | 6:37b6d0d56190 | 312 | { |
samdanbury | 6:37b6d0d56190 | 313 | MQTT::Message &message = md.message; |
samdanbury | 6:37b6d0d56190 | 314 | char topic[md.topicName.lenstring.len + 1]; |
samdanbury | 6:37b6d0d56190 | 315 | |
samdanbury | 6:37b6d0d56190 | 316 | sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data); |
samdanbury | 6:37b6d0d56190 | 317 | |
samdanbury | 6:37b6d0d56190 | 318 | LOG("Message arrived on topic %s: %.*s\n", topic, message.payloadlen, message.payload); |
samdanbury | 6:37b6d0d56190 | 319 | |
samdanbury | 6:37b6d0d56190 | 320 | // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/ |
samdanbury | 6:37b6d0d56190 | 321 | char* start = strstr(topic, "/cmd/") + 5; |
samdanbury | 6:37b6d0d56190 | 322 | int len = strstr(topic, "/fmt/") - start; |
samdanbury | 6:37b6d0d56190 | 323 | |
samdanbury | 6:37b6d0d56190 | 324 | if (memcmp(start, "blink", len) == 0) |
samdanbury | 6:37b6d0d56190 | 325 | { |
samdanbury | 6:37b6d0d56190 | 326 | char payload[message.payloadlen + 1]; |
samdanbury | 6:37b6d0d56190 | 327 | sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload); |
samdanbury | 6:37b6d0d56190 | 328 | |
samdanbury | 6:37b6d0d56190 | 329 | char* pos = strchr(payload, '}'); |
samdanbury | 6:37b6d0d56190 | 330 | if (pos != NULL) |
samdanbury | 6:37b6d0d56190 | 331 | { |
samdanbury | 6:37b6d0d56190 | 332 | *pos = '\0'; |
samdanbury | 6:37b6d0d56190 | 333 | if ((pos = strchr(payload, ':')) != NULL) |
samdanbury | 6:37b6d0d56190 | 334 | { |
samdanbury | 6:37b6d0d56190 | 335 | int blink_rate = atoi(pos + 1); |
samdanbury | 6:37b6d0d56190 | 336 | blink_interval = (blink_rate <= 0) ? 0 : (blink_rate > 50 ? 1 : 50/blink_rate); |
samdanbury | 6:37b6d0d56190 | 337 | } |
samdanbury | 6:37b6d0d56190 | 338 | } |
samdanbury | 6:37b6d0d56190 | 339 | } |
samdanbury | 6:37b6d0d56190 | 340 | else |
samdanbury | 6:37b6d0d56190 | 341 | WARN("Unsupported command: %.*s\n", len, start); |
samdanbury | 6:37b6d0d56190 | 342 | } |
samdanbury | 6:37b6d0d56190 | 343 | |
samdanbury | 6:37b6d0d56190 | 344 | |
samdanbury | 6:37b6d0d56190 | 345 | int main() |
samdanbury | 6:37b6d0d56190 | 346 | { |
icraggs | 8:80d49dd91542 | 347 | quickstartMode = (strcmp(org, "quickstart") == 0); |
icraggs | 8:80d49dd91542 | 348 | |
samdanbury | 6:37b6d0d56190 | 349 | lcd.set_font((unsigned char*) Arial12x12); // Set a nice font for the LCD screen |
samdanbury | 6:37b6d0d56190 | 350 | |
samdanbury | 6:37b6d0d56190 | 351 | led2 = LED2_OFF; // K64F: turn off the main board LED |
samdanbury | 6:37b6d0d56190 | 352 | |
samdanbury | 6:37b6d0d56190 | 353 | displayMessage("Connecting"); |
samdanbury | 6:37b6d0d56190 | 354 | #if defined(TARGET_K64F) |
samdanbury | 6:37b6d0d56190 | 355 | yellow(); // Don't flash on the K64F, because starting a thread causes the EthernetInterface init call to hang |
samdanbury | 6:37b6d0d56190 | 356 | #else |
samdanbury | 6:37b6d0d56190 | 357 | Thread yellow_thread(flashing_yellow); |
samdanbury | 6:37b6d0d56190 | 358 | #endif |
samdanbury | 6:37b6d0d56190 | 359 | |
samdanbury | 6:37b6d0d56190 | 360 | MQTTEthernet ipstack; |
samdanbury | 6:37b6d0d56190 | 361 | MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack); |
samdanbury | 6:37b6d0d56190 | 362 | |
samdanbury | 6:37b6d0d56190 | 363 | if (quickstartMode) |
samdanbury | 6:37b6d0d56190 | 364 | { |
samdanbury | 6:37b6d0d56190 | 365 | #if defined(TARGET_K64F) |
samdanbury | 6:37b6d0d56190 | 366 | getUUID48(id, sizeof(id)); // getMac doesn't work on the K64F |
samdanbury | 6:37b6d0d56190 | 367 | #else |
samdanbury | 6:37b6d0d56190 | 368 | getMac(ipstack.getEth(), id, sizeof(id)); |
samdanbury | 6:37b6d0d56190 | 369 | #endif |
samdanbury | 6:37b6d0d56190 | 370 | } |
samdanbury | 6:37b6d0d56190 | 371 | |
samdanbury | 6:37b6d0d56190 | 372 | attemptConnect(&client, &ipstack); |
samdanbury | 6:37b6d0d56190 | 373 | |
samdanbury | 6:37b6d0d56190 | 374 | if (!quickstartMode) |
samdanbury | 6:37b6d0d56190 | 375 | { |
samdanbury | 6:37b6d0d56190 | 376 | int rc = 0; |
samdanbury | 6:37b6d0d56190 | 377 | if ((rc = client.subscribe("iot-2/cmd/+/fmt/json", MQTT::QOS1, messageArrived)) != 0) |
samdanbury | 6:37b6d0d56190 | 378 | WARN("rc from MQTT subscribe is %d\n", rc); |
samdanbury | 6:37b6d0d56190 | 379 | } |
samdanbury | 6:37b6d0d56190 | 380 | |
samdanbury | 6:37b6d0d56190 | 381 | blink_interval = 0; |
samdanbury | 6:37b6d0d56190 | 382 | int count = 0; |
samdanbury | 6:37b6d0d56190 | 383 | while (true) |
samdanbury | 6:37b6d0d56190 | 384 | { |
samdanbury | 6:37b6d0d56190 | 385 | if (++count == 100) |
samdanbury | 6:37b6d0d56190 | 386 | { // Publish a message every second |
samdanbury | 6:37b6d0d56190 | 387 | if (publish(&client, &ipstack) != 0) |
samdanbury | 6:37b6d0d56190 | 388 | attemptConnect(&client, &ipstack); // if we have lost the connection |
samdanbury | 6:37b6d0d56190 | 389 | count = 0; |
samdanbury | 6:37b6d0d56190 | 390 | } |
samdanbury | 6:37b6d0d56190 | 391 | |
samdanbury | 6:37b6d0d56190 | 392 | if (blink_interval == 0) |
samdanbury | 6:37b6d0d56190 | 393 | led2 = LED2_OFF; |
samdanbury | 6:37b6d0d56190 | 394 | else if (count % blink_interval == 0) |
samdanbury | 6:37b6d0d56190 | 395 | led2 = !led2; |
samdanbury | 6:37b6d0d56190 | 396 | if (count % 20 == 0) |
samdanbury | 6:37b6d0d56190 | 397 | setMenu(); |
samdanbury | 6:37b6d0d56190 | 398 | client.yield(10); // allow the MQTT client to receive messages |
samdanbury | 6:37b6d0d56190 | 399 | } |
samdanbury | 6:37b6d0d56190 | 400 | } |