IBMIoTClientEthernetExample for WIZwiki-W7500 platform
Dependencies: MQTT WIZnetInterface mbed-src
main.cpp@4:167fd0256a06, 2015-09-17 (annotated)
- Committer:
- hkjung
- Date:
- Thu Sep 17 04:42:29 2015 +0000
- Revision:
- 4:167fd0256a06
- Parent:
- 2:b1dcfd885d7f
Modified the netinfo allocation method
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hkjung | 0:7488a229e6fc | 1 | #include "mbed.h" |
hkjung | 0:7488a229e6fc | 2 | #include "EthernetInterface.h" |
hkjung | 0:7488a229e6fc | 3 | #include "MQTTClient.h" |
hkjung | 0:7488a229e6fc | 4 | #include "MQTTEthernet.h" |
hkjung | 0:7488a229e6fc | 5 | |
hkjung | 2:b1dcfd885d7f | 6 | Serial pc(USBTX, USBRX); |
hkjung | 2:b1dcfd885d7f | 7 | |
hkjung | 0:7488a229e6fc | 8 | // Update this to the next number *before* a commit |
hkjung | 0:7488a229e6fc | 9 | #define __APP_SW_REVISION__ "1" |
hkjung | 0:7488a229e6fc | 10 | |
hkjung | 0:7488a229e6fc | 11 | // Configuration values needed to connect to IBM IoT Cloud |
hkjung | 2:b1dcfd885d7f | 12 | #define QUICKSTARTMODE 1 |
hkjung | 2:b1dcfd885d7f | 13 | #if (QUICKSTARTMODE) |
hkjung | 4:167fd0256a06 | 14 | #define ORG "quickstart" // For a registered connection, replace with your org |
hkjung | 4:167fd0256a06 | 15 | #define ID "" // For a registered connection, replace with your id |
hkjung | 4:167fd0256a06 | 16 | #define AUTH_TOKEN "" // For a registered connection, replace with your auth-token |
hkjung | 4:167fd0256a06 | 17 | #define TYPE DEFAULT_TYPE_NAME // For a registered connection, replace with your type |
hkjung | 2:b1dcfd885d7f | 18 | #else |
hkjung | 4:167fd0256a06 | 19 | #define ORG "" // For a registered connection, replace with your org |
hkjung | 4:167fd0256a06 | 20 | #define ID "" // For a registered connection, replace with your id |
hkjung | 4:167fd0256a06 | 21 | #define AUTH_TOKEN "" // For a registered connection, replace with your auth-token |
hkjung | 4:167fd0256a06 | 22 | #define TYPE "WIZwiki-W7500" // For a registered connection, replace with your type |
hkjung | 2:b1dcfd885d7f | 23 | #endif |
hkjung | 2:b1dcfd885d7f | 24 | |
hkjung | 2:b1dcfd885d7f | 25 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 2:b1dcfd885d7f | 26 | //#warning "Compiling for mbed WIZwiki-W7500" |
hkjung | 2:b1dcfd885d7f | 27 | #include "WIZwiki-W7500.h" |
hkjung | 2:b1dcfd885d7f | 28 | #endif |
hkjung | 0:7488a229e6fc | 29 | |
hkjung | 0:7488a229e6fc | 30 | #define MQTT_PORT 1883 |
hkjung | 0:7488a229e6fc | 31 | #define MQTT_TLS_PORT 8883 |
hkjung | 0:7488a229e6fc | 32 | #define IBM_IOT_PORT MQTT_PORT |
hkjung | 0:7488a229e6fc | 33 | |
hkjung | 0:7488a229e6fc | 34 | #define MQTT_MAX_PACKET_SIZE 250 |
hkjung | 0:7488a229e6fc | 35 | |
hkjung | 0:7488a229e6fc | 36 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 4:167fd0256a06 | 37 | // RGB LED control |
hkjung | 2:b1dcfd885d7f | 38 | void off(); |
hkjung | 2:b1dcfd885d7f | 39 | void red(); |
hkjung | 2:b1dcfd885d7f | 40 | void green(); |
hkjung | 2:b1dcfd885d7f | 41 | void blue(); |
hkjung | 0:7488a229e6fc | 42 | #endif |
hkjung | 0:7488a229e6fc | 43 | |
hkjung | 2:b1dcfd885d7f | 44 | bool quickstartMode = QUICKSTARTMODE; |
hkjung | 0:7488a229e6fc | 45 | char org[11] = ORG; |
hkjung | 0:7488a229e6fc | 46 | char type[30] = TYPE; |
hkjung | 0:7488a229e6fc | 47 | char id[30] = ID; // mac without colons |
hkjung | 0:7488a229e6fc | 48 | char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode |
hkjung | 0:7488a229e6fc | 49 | |
hkjung | 0:7488a229e6fc | 50 | bool connected = false; |
hkjung | 0:7488a229e6fc | 51 | int blink_interval = 0; |
hkjung | 0:7488a229e6fc | 52 | |
hkjung | 0:7488a229e6fc | 53 | int connect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
hkjung | 0:7488a229e6fc | 54 | { |
hkjung | 0:7488a229e6fc | 55 | const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com"; |
hkjung | 0:7488a229e6fc | 56 | char hostname[strlen(org) + strlen(iot_ibm) + 1]; |
hkjung | 0:7488a229e6fc | 57 | sprintf(hostname, "%s%s", org, iot_ibm); |
hkjung | 0:7488a229e6fc | 58 | |
hkjung | 0:7488a229e6fc | 59 | //const char* iot_ibm = "23.246.232.210"; |
hkjung | 0:7488a229e6fc | 60 | //char hostname[strlen(iot_ibm) + 1]; |
hkjung | 0:7488a229e6fc | 61 | //sprintf(hostname, "%s", iot_ibm); |
hkjung | 2:b1dcfd885d7f | 62 | |
hkjung | 0:7488a229e6fc | 63 | DEBUG("hostname is %s\r\n", hostname); |
hkjung | 0:7488a229e6fc | 64 | int rc = ipstack->connect(hostname, IBM_IOT_PORT); |
hkjung | 0:7488a229e6fc | 65 | if (rc != 0) |
hkjung | 0:7488a229e6fc | 66 | return rc; |
hkjung | 0:7488a229e6fc | 67 | |
hkjung | 0:7488a229e6fc | 68 | // Construct clientId - d:org:type:id |
hkjung | 0:7488a229e6fc | 69 | char clientId[strlen(org) + strlen(type) + strlen(id) + 5]; |
hkjung | 2:b1dcfd885d7f | 70 | sprintf(clientId, "d:%s:%s:%s", org, type, id); |
hkjung | 0:7488a229e6fc | 71 | DEBUG("clientid is %s\r\n", clientId); |
hkjung | 0:7488a229e6fc | 72 | |
hkjung | 0:7488a229e6fc | 73 | // MQTT Connect |
hkjung | 0:7488a229e6fc | 74 | MQTTPacket_connectData data = MQTTPacket_connectData_initializer; |
hkjung | 0:7488a229e6fc | 75 | data.MQTTVersion = 3; |
hkjung | 0:7488a229e6fc | 76 | data.clientID.cstring = clientId; |
hkjung | 0:7488a229e6fc | 77 | |
hkjung | 0:7488a229e6fc | 78 | if (!quickstartMode) { |
hkjung | 0:7488a229e6fc | 79 | data.username.cstring = "use-token-auth"; |
hkjung | 0:7488a229e6fc | 80 | data.password.cstring = auth_token; |
hkjung | 0:7488a229e6fc | 81 | } |
hkjung | 0:7488a229e6fc | 82 | |
hkjung | 0:7488a229e6fc | 83 | if ((rc = client->connect(data)) == 0) { |
hkjung | 0:7488a229e6fc | 84 | connected = true; |
hkjung | 2:b1dcfd885d7f | 85 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 0:7488a229e6fc | 86 | green(); |
hkjung | 2:b1dcfd885d7f | 87 | #endif |
hkjung | 0:7488a229e6fc | 88 | printf("Connected\r\n"); |
hkjung | 0:7488a229e6fc | 89 | wait(2); |
hkjung | 0:7488a229e6fc | 90 | } |
hkjung | 0:7488a229e6fc | 91 | return rc; |
hkjung | 0:7488a229e6fc | 92 | } |
hkjung | 0:7488a229e6fc | 93 | |
hkjung | 0:7488a229e6fc | 94 | int getConnTimeout(int attemptNumber) |
hkjung | 0:7488a229e6fc | 95 | { |
hkjung | 0:7488a229e6fc | 96 | // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute |
hkjung | 0:7488a229e6fc | 97 | // after 20 attempts, retry every 10 minutes |
hkjung | 0:7488a229e6fc | 98 | return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600; |
hkjung | 0:7488a229e6fc | 99 | } |
hkjung | 0:7488a229e6fc | 100 | |
hkjung | 0:7488a229e6fc | 101 | |
hkjung | 0:7488a229e6fc | 102 | void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
hkjung | 0:7488a229e6fc | 103 | { |
hkjung | 0:7488a229e6fc | 104 | int retryAttempt = 0; |
hkjung | 0:7488a229e6fc | 105 | connected = false; |
hkjung | 0:7488a229e6fc | 106 | |
hkjung | 0:7488a229e6fc | 107 | // make sure a cable is connected before starting to connect |
hkjung | 0:7488a229e6fc | 108 | /* |
hkjung | 0:7488a229e6fc | 109 | while (!linkStatus()) { |
hkjung | 0:7488a229e6fc | 110 | wait(1.0f); |
hkjung | 0:7488a229e6fc | 111 | WARN("Ethernet link not present. Check cable connection\n"); |
hkjung | 0:7488a229e6fc | 112 | } |
hkjung | 0:7488a229e6fc | 113 | */ |
hkjung | 0:7488a229e6fc | 114 | |
hkjung | 0:7488a229e6fc | 115 | while (connect(client, ipstack) != 0) { |
hkjung | 0:7488a229e6fc | 116 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 0:7488a229e6fc | 117 | red(); |
hkjung | 0:7488a229e6fc | 118 | #endif |
hkjung | 0:7488a229e6fc | 119 | int timeout = getConnTimeout(++retryAttempt); |
hkjung | 2:b1dcfd885d7f | 120 | WARN("Retry attempt number %d waiting %d\r\n", retryAttempt, timeout); |
hkjung | 0:7488a229e6fc | 121 | |
hkjung | 0:7488a229e6fc | 122 | // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed |
hkjung | 0:7488a229e6fc | 123 | // or maybe just add the proper members to do this disconnect and call attemptConnect(...) |
hkjung | 0:7488a229e6fc | 124 | |
hkjung | 0:7488a229e6fc | 125 | // this works - reset the system when the retry count gets to a threshold |
hkjung | 0:7488a229e6fc | 126 | if (retryAttempt == 5) |
hkjung | 0:7488a229e6fc | 127 | NVIC_SystemReset(); |
hkjung | 0:7488a229e6fc | 128 | else |
hkjung | 0:7488a229e6fc | 129 | wait(timeout); |
hkjung | 0:7488a229e6fc | 130 | } |
hkjung | 0:7488a229e6fc | 131 | } |
hkjung | 0:7488a229e6fc | 132 | |
hkjung | 0:7488a229e6fc | 133 | int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
hkjung | 0:7488a229e6fc | 134 | { |
hkjung | 0:7488a229e6fc | 135 | MQTT::Message message; |
hkjung | 0:7488a229e6fc | 136 | char* pubTopic = "iot-2/evt/status/fmt/json"; |
hkjung | 0:7488a229e6fc | 137 | |
hkjung | 0:7488a229e6fc | 138 | char buf[250]; |
hkjung | 2:b1dcfd885d7f | 139 | |
hkjung | 4:167fd0256a06 | 140 | sprintf(buf, "{\"d\":{\"myName\":\"IoT mbed\",\"potentiometer\":%0.3f}}", ain0.read()); |
hkjung | 4:167fd0256a06 | 141 | //sprintf(buf, "{\"d\":{\"myName\":\"IoT mbed\",\"potentiometer\":%0.4f}}", ain0.read()); |
hkjung | 0:7488a229e6fc | 142 | |
hkjung | 0:7488a229e6fc | 143 | message.qos = MQTT::QOS0; |
hkjung | 0:7488a229e6fc | 144 | message.retained = false; |
hkjung | 0:7488a229e6fc | 145 | message.dup = false; |
hkjung | 0:7488a229e6fc | 146 | message.payload = (void*)buf; |
hkjung | 0:7488a229e6fc | 147 | message.payloadlen = strlen(buf); |
hkjung | 0:7488a229e6fc | 148 | |
hkjung | 0:7488a229e6fc | 149 | LOG("Publishing %s\r\n", buf); |
hkjung | 0:7488a229e6fc | 150 | return client->publish(pubTopic, message); |
hkjung | 0:7488a229e6fc | 151 | } |
hkjung | 0:7488a229e6fc | 152 | |
hkjung | 0:7488a229e6fc | 153 | char* getMac(EthernetInterface& eth, char* buf, int buflen) // Obtain MAC address |
hkjung | 0:7488a229e6fc | 154 | { |
hkjung | 0:7488a229e6fc | 155 | strncpy(buf, eth.getMACAddress(), buflen); |
hkjung | 0:7488a229e6fc | 156 | |
hkjung | 0:7488a229e6fc | 157 | char* pos; // Remove colons from mac address |
hkjung | 0:7488a229e6fc | 158 | while ((pos = strchr(buf, ':')) != NULL) |
hkjung | 0:7488a229e6fc | 159 | memmove(pos, pos + 1, strlen(pos) + 1); |
hkjung | 0:7488a229e6fc | 160 | return buf; |
hkjung | 0:7488a229e6fc | 161 | } |
hkjung | 0:7488a229e6fc | 162 | |
hkjung | 0:7488a229e6fc | 163 | void messageArrived(MQTT::MessageData& md) |
hkjung | 0:7488a229e6fc | 164 | { |
hkjung | 0:7488a229e6fc | 165 | MQTT::Message &message = md.message; |
hkjung | 0:7488a229e6fc | 166 | char topic[md.topicName.lenstring.len + 1]; |
hkjung | 0:7488a229e6fc | 167 | |
hkjung | 0:7488a229e6fc | 168 | sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data); |
hkjung | 0:7488a229e6fc | 169 | |
hkjung | 0:7488a229e6fc | 170 | LOG("Message arrived on topic %s: %.*s\r\n", topic, message.payloadlen, message.payload); |
hkjung | 0:7488a229e6fc | 171 | |
hkjung | 0:7488a229e6fc | 172 | // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/ |
hkjung | 0:7488a229e6fc | 173 | char* start = strstr(topic, "/cmd/") + 5; |
hkjung | 0:7488a229e6fc | 174 | int len = strstr(topic, "/fmt/") - start; |
hkjung | 0:7488a229e6fc | 175 | |
hkjung | 0:7488a229e6fc | 176 | if (memcmp(start, "blink", len) == 0) { |
hkjung | 0:7488a229e6fc | 177 | char payload[message.payloadlen + 1]; |
hkjung | 0:7488a229e6fc | 178 | sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload); |
hkjung | 0:7488a229e6fc | 179 | |
hkjung | 0:7488a229e6fc | 180 | char* pos = strchr(payload, '}'); |
hkjung | 0:7488a229e6fc | 181 | if (pos != NULL) { |
hkjung | 0:7488a229e6fc | 182 | *pos = '\0'; |
hkjung | 0:7488a229e6fc | 183 | if ((pos = strchr(payload, ':')) != NULL) { |
hkjung | 0:7488a229e6fc | 184 | int blink_rate = atoi(pos + 1); |
hkjung | 0:7488a229e6fc | 185 | blink_interval = (blink_rate <= 0) ? 0 : (blink_rate > 50 ? 1 : 50/blink_rate); |
hkjung | 0:7488a229e6fc | 186 | } |
hkjung | 0:7488a229e6fc | 187 | } |
hkjung | 0:7488a229e6fc | 188 | } else |
hkjung | 2:b1dcfd885d7f | 189 | WARN("Unsupported command: %.*s\r\n", len, start); |
hkjung | 0:7488a229e6fc | 190 | } |
hkjung | 0:7488a229e6fc | 191 | |
hkjung | 0:7488a229e6fc | 192 | int main (void) |
hkjung | 0:7488a229e6fc | 193 | { |
hkjung | 2:b1dcfd885d7f | 194 | pc.baud(115200); |
hkjung | 2:b1dcfd885d7f | 195 | |
hkjung | 2:b1dcfd885d7f | 196 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 2:b1dcfd885d7f | 197 | // Board init indicator : Init success |
hkjung | 0:7488a229e6fc | 198 | red(); |
hkjung | 0:7488a229e6fc | 199 | wait(0.2); |
hkjung | 2:b1dcfd885d7f | 200 | blue(); |
hkjung | 0:7488a229e6fc | 201 | wait(0.2); |
hkjung | 0:7488a229e6fc | 202 | green(); |
hkjung | 0:7488a229e6fc | 203 | wait(0.2); |
hkjung | 0:7488a229e6fc | 204 | off(); |
hkjung | 0:7488a229e6fc | 205 | wait(0.2); |
hkjung | 0:7488a229e6fc | 206 | // end of board init indicator |
hkjung | 2:b1dcfd885d7f | 207 | #endif |
hkjung | 0:7488a229e6fc | 208 | |
hkjung | 2:b1dcfd885d7f | 209 | quickstartMode = (strcmp(org, "quickstart") == 0); |
hkjung | 0:7488a229e6fc | 210 | printf("Connecting...\r\n"); |
hkjung | 0:7488a229e6fc | 211 | |
hkjung | 0:7488a229e6fc | 212 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 2:b1dcfd885d7f | 213 | blue(); |
hkjung | 0:7488a229e6fc | 214 | #endif |
hkjung | 0:7488a229e6fc | 215 | |
hkjung | 0:7488a229e6fc | 216 | MQTTEthernet ipstack; |
hkjung | 0:7488a229e6fc | 217 | MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack); |
hkjung | 0:7488a229e6fc | 218 | |
hkjung | 0:7488a229e6fc | 219 | if (quickstartMode) { |
hkjung | 0:7488a229e6fc | 220 | getMac(ipstack.getEth(), id, sizeof(id)); |
hkjung | 2:b1dcfd885d7f | 221 | //printf("getMac: %s\r\n", id); |
hkjung | 0:7488a229e6fc | 222 | } |
hkjung | 0:7488a229e6fc | 223 | |
hkjung | 0:7488a229e6fc | 224 | attemptConnect(&client, &ipstack); |
hkjung | 0:7488a229e6fc | 225 | |
hkjung | 0:7488a229e6fc | 226 | if (!quickstartMode) |
hkjung | 0:7488a229e6fc | 227 | { |
hkjung | 0:7488a229e6fc | 228 | int rc = 0; |
hkjung | 0:7488a229e6fc | 229 | if ((rc = client.subscribe("iot-2/cmd/+/fmt/json", MQTT::QOS1, messageArrived)) != 0) |
hkjung | 2:b1dcfd885d7f | 230 | WARN("rc from MQTT subscribe is %d\r\n", rc); |
hkjung | 0:7488a229e6fc | 231 | } |
hkjung | 0:7488a229e6fc | 232 | |
hkjung | 0:7488a229e6fc | 233 | blink_interval = 0; |
hkjung | 0:7488a229e6fc | 234 | int count = 0; |
hkjung | 0:7488a229e6fc | 235 | |
hkjung | 0:7488a229e6fc | 236 | while(true) |
hkjung | 0:7488a229e6fc | 237 | { |
hkjung | 2:b1dcfd885d7f | 238 | if (++count == 100) |
hkjung | 2:b1dcfd885d7f | 239 | { // Publish a message every second |
hkjung | 2:b1dcfd885d7f | 240 | |
hkjung | 2:b1dcfd885d7f | 241 | //printf("A0: %0.4f\r\n", ain0.read()); |
hkjung | 0:7488a229e6fc | 242 | |
hkjung | 0:7488a229e6fc | 243 | if (publish(&client, &ipstack) != 0) |
hkjung | 0:7488a229e6fc | 244 | attemptConnect(&client, &ipstack); // if we have lost the connection |
hkjung | 0:7488a229e6fc | 245 | count = 0; |
hkjung | 0:7488a229e6fc | 246 | } |
hkjung | 0:7488a229e6fc | 247 | |
hkjung | 2:b1dcfd885d7f | 248 | |
hkjung | 4:167fd0256a06 | 249 | // Control the LED Blink interval: By Bluemix Node-RED |
hkjung | 2:b1dcfd885d7f | 250 | if (blink_interval == 0) |
hkjung | 2:b1dcfd885d7f | 251 | off(); |
hkjung | 2:b1dcfd885d7f | 252 | else if (count % blink_interval == 0) |
hkjung | 2:b1dcfd885d7f | 253 | b = !b; |
hkjung | 2:b1dcfd885d7f | 254 | |
hkjung | 0:7488a229e6fc | 255 | client.yield(10); // allow the MQTT client to receive messages |
hkjung | 0:7488a229e6fc | 256 | } |
hkjung | 0:7488a229e6fc | 257 | } |
hkjung | 0:7488a229e6fc | 258 | |
hkjung | 2:b1dcfd885d7f | 259 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 4:167fd0256a06 | 260 | // RGB LED control -> DigitalOut |
hkjung | 2:b1dcfd885d7f | 261 | void off() |
hkjung | 4:167fd0256a06 | 262 | { |
hkjung | 2:b1dcfd885d7f | 263 | r = g = b = 1; |
hkjung | 2:b1dcfd885d7f | 264 | } |
hkjung | 2:b1dcfd885d7f | 265 | |
hkjung | 2:b1dcfd885d7f | 266 | void red() |
hkjung | 4:167fd0256a06 | 267 | { |
hkjung | 2:b1dcfd885d7f | 268 | r = 0; g = 1; b = 1; |
hkjung | 2:b1dcfd885d7f | 269 | } |
hkjung | 2:b1dcfd885d7f | 270 | |
hkjung | 2:b1dcfd885d7f | 271 | void green() |
hkjung | 4:167fd0256a06 | 272 | { |
hkjung | 2:b1dcfd885d7f | 273 | r = 1; g = 0; b = 1; |
hkjung | 2:b1dcfd885d7f | 274 | } |
hkjung | 2:b1dcfd885d7f | 275 | |
hkjung | 2:b1dcfd885d7f | 276 | void blue() |
hkjung | 4:167fd0256a06 | 277 | { |
hkjung | 2:b1dcfd885d7f | 278 | r = 1; g = 1; b = 0; |
hkjung | 2:b1dcfd885d7f | 279 | } |
hkjung | 2:b1dcfd885d7f | 280 | #endif |
hkjung | 2:b1dcfd885d7f | 281 |