IBMIoTClientEthernetExample for WIZwiki-W7500 platform
Dependencies: MQTT WIZnetInterface mbed-src
main.cpp@0:7488a229e6fc, 2015-06-29 (annotated)
- Committer:
- hkjung
- Date:
- Mon Jun 29 11:57:28 2015 +0000
- Revision:
- 0:7488a229e6fc
- Child:
- 2:b1dcfd885d7f
IBMIoTClientEthernetExample for WIZwiki-W7500 platform
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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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 | 0:7488a229e6fc | 6 | // Update this to the next number *before* a commit |
hkjung | 0:7488a229e6fc | 7 | #define __APP_SW_REVISION__ "1" |
hkjung | 0:7488a229e6fc | 8 | |
hkjung | 0:7488a229e6fc | 9 | // Configuration values needed to connect to IBM IoT Cloud |
hkjung | 0:7488a229e6fc | 10 | #define ORG "pya466" // For a registered connection, replace with your org |
hkjung | 0:7488a229e6fc | 11 | #define ID "0008DC1D69F3" // For a registered connection, replace with your id |
hkjung | 0:7488a229e6fc | 12 | #define AUTH_TOKEN "RS-NqB7J72H8rwIA7Q" // For a registered connection, replace with your auth-token |
hkjung | 0:7488a229e6fc | 13 | #define TYPE "WIZwiki-W7500_Eric" // For a registered connection, replace with your type |
hkjung | 0:7488a229e6fc | 14 | |
hkjung | 0:7488a229e6fc | 15 | #define MQTT_PORT 1883 |
hkjung | 0:7488a229e6fc | 16 | #define MQTT_TLS_PORT 8883 |
hkjung | 0:7488a229e6fc | 17 | #define IBM_IOT_PORT MQTT_PORT |
hkjung | 0:7488a229e6fc | 18 | |
hkjung | 0:7488a229e6fc | 19 | #define MQTT_MAX_PACKET_SIZE 250 |
hkjung | 0:7488a229e6fc | 20 | |
hkjung | 0:7488a229e6fc | 21 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 0:7488a229e6fc | 22 | #warning "Compiling for mbed WIZwiki-W7500" |
hkjung | 0:7488a229e6fc | 23 | #include "WIZwiki-W7500.h" |
hkjung | 0:7488a229e6fc | 24 | #endif |
hkjung | 0:7488a229e6fc | 25 | |
hkjung | 0:7488a229e6fc | 26 | bool quickstartMode = true; |
hkjung | 0:7488a229e6fc | 27 | char org[11] = ORG; |
hkjung | 0:7488a229e6fc | 28 | char type[30] = TYPE; |
hkjung | 0:7488a229e6fc | 29 | char id[30] = ID; // mac without colons |
hkjung | 0:7488a229e6fc | 30 | char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode |
hkjung | 0:7488a229e6fc | 31 | |
hkjung | 0:7488a229e6fc | 32 | bool connected = false; |
hkjung | 0:7488a229e6fc | 33 | int blink_interval = 0; |
hkjung | 0:7488a229e6fc | 34 | |
hkjung | 0:7488a229e6fc | 35 | void baud(int baudrate) |
hkjung | 0:7488a229e6fc | 36 | { |
hkjung | 0:7488a229e6fc | 37 | Serial s(USBTX, USBRX); |
hkjung | 0:7488a229e6fc | 38 | s.baud(baudrate); |
hkjung | 0:7488a229e6fc | 39 | } |
hkjung | 0:7488a229e6fc | 40 | |
hkjung | 0:7488a229e6fc | 41 | // PWM: RGB LED control |
hkjung | 0:7488a229e6fc | 42 | void off() |
hkjung | 0:7488a229e6fc | 43 | { |
hkjung | 0:7488a229e6fc | 44 | r = g = b = 1.0; // 1 is off, 0 is full brightness |
hkjung | 0:7488a229e6fc | 45 | } |
hkjung | 0:7488a229e6fc | 46 | |
hkjung | 0:7488a229e6fc | 47 | void red() |
hkjung | 0:7488a229e6fc | 48 | { |
hkjung | 0:7488a229e6fc | 49 | r = 0.7; |
hkjung | 0:7488a229e6fc | 50 | g = 1.0; |
hkjung | 0:7488a229e6fc | 51 | b = 1.0; // 1 is off, 0 is full brightness |
hkjung | 0:7488a229e6fc | 52 | } |
hkjung | 0:7488a229e6fc | 53 | |
hkjung | 0:7488a229e6fc | 54 | void yellow() |
hkjung | 0:7488a229e6fc | 55 | { |
hkjung | 0:7488a229e6fc | 56 | r = 0.7; |
hkjung | 0:7488a229e6fc | 57 | g = 0.7; |
hkjung | 0:7488a229e6fc | 58 | b = 1.0; // 1 is off, 0 is full brightness |
hkjung | 0:7488a229e6fc | 59 | } |
hkjung | 0:7488a229e6fc | 60 | |
hkjung | 0:7488a229e6fc | 61 | void green() |
hkjung | 0:7488a229e6fc | 62 | { |
hkjung | 0:7488a229e6fc | 63 | r = 1.0; |
hkjung | 0:7488a229e6fc | 64 | g = 0.7; |
hkjung | 0:7488a229e6fc | 65 | b = 1.0; // 1 is off, 0 is full brightness |
hkjung | 0:7488a229e6fc | 66 | } |
hkjung | 0:7488a229e6fc | 67 | |
hkjung | 0:7488a229e6fc | 68 | int connect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
hkjung | 0:7488a229e6fc | 69 | { |
hkjung | 0:7488a229e6fc | 70 | const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com"; |
hkjung | 0:7488a229e6fc | 71 | char hostname[strlen(org) + strlen(iot_ibm) + 1]; |
hkjung | 0:7488a229e6fc | 72 | sprintf(hostname, "%s%s", org, iot_ibm); |
hkjung | 0:7488a229e6fc | 73 | |
hkjung | 0:7488a229e6fc | 74 | //const char* iot_ibm = "23.246.232.210"; |
hkjung | 0:7488a229e6fc | 75 | //char hostname[strlen(iot_ibm) + 1]; |
hkjung | 0:7488a229e6fc | 76 | //sprintf(hostname, "%s", iot_ibm); |
hkjung | 0:7488a229e6fc | 77 | |
hkjung | 0:7488a229e6fc | 78 | //DEBUG("hostname is %s\n", hostname); |
hkjung | 0:7488a229e6fc | 79 | DEBUG("hostname is %s\r\n", hostname); |
hkjung | 0:7488a229e6fc | 80 | int rc = ipstack->connect(hostname, IBM_IOT_PORT); |
hkjung | 0:7488a229e6fc | 81 | if (rc != 0) |
hkjung | 0:7488a229e6fc | 82 | return rc; |
hkjung | 0:7488a229e6fc | 83 | |
hkjung | 0:7488a229e6fc | 84 | // Construct clientId - d:org:type:id |
hkjung | 0:7488a229e6fc | 85 | char clientId[strlen(org) + strlen(type) + strlen(id) + 5]; |
hkjung | 0:7488a229e6fc | 86 | sprintf(clientId, "d:%s:%s:%s", org, type, id); |
hkjung | 0:7488a229e6fc | 87 | //DEBUG("clientid is %s\n", clientId); |
hkjung | 0:7488a229e6fc | 88 | DEBUG("clientid is %s\r\n", clientId); |
hkjung | 0:7488a229e6fc | 89 | |
hkjung | 0:7488a229e6fc | 90 | // MQTT Connect |
hkjung | 0:7488a229e6fc | 91 | MQTTPacket_connectData data = MQTTPacket_connectData_initializer; |
hkjung | 0:7488a229e6fc | 92 | data.MQTTVersion = 3; |
hkjung | 0:7488a229e6fc | 93 | data.clientID.cstring = clientId; |
hkjung | 0:7488a229e6fc | 94 | |
hkjung | 0:7488a229e6fc | 95 | if (!quickstartMode) { |
hkjung | 0:7488a229e6fc | 96 | data.username.cstring = "use-token-auth"; |
hkjung | 0:7488a229e6fc | 97 | data.password.cstring = auth_token; |
hkjung | 0:7488a229e6fc | 98 | } |
hkjung | 0:7488a229e6fc | 99 | |
hkjung | 0:7488a229e6fc | 100 | if ((rc = client->connect(data)) == 0) { |
hkjung | 0:7488a229e6fc | 101 | connected = true; |
hkjung | 0:7488a229e6fc | 102 | green(); |
hkjung | 0:7488a229e6fc | 103 | //displayMessage("Connected"); |
hkjung | 0:7488a229e6fc | 104 | printf("Connected\r\n"); |
hkjung | 0:7488a229e6fc | 105 | wait(2); |
hkjung | 0:7488a229e6fc | 106 | } |
hkjung | 0:7488a229e6fc | 107 | return rc; |
hkjung | 0:7488a229e6fc | 108 | } |
hkjung | 0:7488a229e6fc | 109 | |
hkjung | 0:7488a229e6fc | 110 | int getConnTimeout(int attemptNumber) |
hkjung | 0:7488a229e6fc | 111 | { |
hkjung | 0:7488a229e6fc | 112 | // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute |
hkjung | 0:7488a229e6fc | 113 | // after 20 attempts, retry every 10 minutes |
hkjung | 0:7488a229e6fc | 114 | return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600; |
hkjung | 0:7488a229e6fc | 115 | } |
hkjung | 0:7488a229e6fc | 116 | |
hkjung | 0:7488a229e6fc | 117 | |
hkjung | 0:7488a229e6fc | 118 | void attemptConnect(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
hkjung | 0:7488a229e6fc | 119 | { |
hkjung | 0:7488a229e6fc | 120 | int retryAttempt = 0; |
hkjung | 0:7488a229e6fc | 121 | connected = false; |
hkjung | 0:7488a229e6fc | 122 | |
hkjung | 0:7488a229e6fc | 123 | // make sure a cable is connected before starting to connect |
hkjung | 0:7488a229e6fc | 124 | /* |
hkjung | 0:7488a229e6fc | 125 | while (!linkStatus()) { |
hkjung | 0:7488a229e6fc | 126 | wait(1.0f); |
hkjung | 0:7488a229e6fc | 127 | WARN("Ethernet link not present. Check cable connection\n"); |
hkjung | 0:7488a229e6fc | 128 | } |
hkjung | 0:7488a229e6fc | 129 | */ |
hkjung | 0:7488a229e6fc | 130 | |
hkjung | 0:7488a229e6fc | 131 | while (connect(client, ipstack) != 0) { |
hkjung | 0:7488a229e6fc | 132 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 0:7488a229e6fc | 133 | red(); |
hkjung | 0:7488a229e6fc | 134 | #endif |
hkjung | 0:7488a229e6fc | 135 | int timeout = getConnTimeout(++retryAttempt); |
hkjung | 0:7488a229e6fc | 136 | WARN("Retry attempt number %d waiting %d\r\n", retryAttempt, timeout); |
hkjung | 0:7488a229e6fc | 137 | //WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout); |
hkjung | 0:7488a229e6fc | 138 | |
hkjung | 0:7488a229e6fc | 139 | // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed |
hkjung | 0:7488a229e6fc | 140 | // or maybe just add the proper members to do this disconnect and call attemptConnect(...) |
hkjung | 0:7488a229e6fc | 141 | |
hkjung | 0:7488a229e6fc | 142 | // this works - reset the system when the retry count gets to a threshold |
hkjung | 0:7488a229e6fc | 143 | if (retryAttempt == 5) |
hkjung | 0:7488a229e6fc | 144 | NVIC_SystemReset(); |
hkjung | 0:7488a229e6fc | 145 | else |
hkjung | 0:7488a229e6fc | 146 | wait(timeout); |
hkjung | 0:7488a229e6fc | 147 | } |
hkjung | 0:7488a229e6fc | 148 | } |
hkjung | 0:7488a229e6fc | 149 | |
hkjung | 0:7488a229e6fc | 150 | int publish(MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTEthernet* ipstack) |
hkjung | 0:7488a229e6fc | 151 | { |
hkjung | 0:7488a229e6fc | 152 | MQTT::Message message; |
hkjung | 0:7488a229e6fc | 153 | char* pubTopic = "iot-2/evt/status/fmt/json"; |
hkjung | 0:7488a229e6fc | 154 | |
hkjung | 0:7488a229e6fc | 155 | char buf[250]; |
hkjung | 0:7488a229e6fc | 156 | /* |
hkjung | 0:7488a229e6fc | 157 | sprintf(buf, |
hkjung | 0:7488a229e6fc | 158 | "{\"d\":{\"myName\":\"IoT mbed\",\"accelX\":%0.4f,\"accelY\":%0.4f,\"accelZ\":%0.4f,\"temp\":%0.4f,\"joystick\":\"%s\",\"potentiometer1\":%0.4f,\"potentiometer2\":%0.4f}}", |
hkjung | 0:7488a229e6fc | 159 | MMA.x(), MMA.y(), MMA.z(), sensor.temp(), joystickPos, ain1.read(), ain2.read()); |
hkjung | 0:7488a229e6fc | 160 | */ |
hkjung | 0:7488a229e6fc | 161 | /* |
hkjung | 0:7488a229e6fc | 162 | sprintf(buf, |
hkjung | 0:7488a229e6fc | 163 | "{\"d\":{\"myName\":\"IoT mbed\",\"temp\":%0.4f,\"light\":%0.4f}}", |
hkjung | 0:7488a229e6fc | 164 | ain0.read(), ain1.read()); |
hkjung | 0:7488a229e6fc | 165 | */ |
hkjung | 0:7488a229e6fc | 166 | |
hkjung | 0:7488a229e6fc | 167 | sprintf(buf, |
hkjung | 0:7488a229e6fc | 168 | "{\"d\":{\"myName\":\"IoT mbed\",\"temp\":%0.4f,\"light\":%0.4f}}", |
hkjung | 0:7488a229e6fc | 169 | ain0.read(), ain1.read()); |
hkjung | 0:7488a229e6fc | 170 | |
hkjung | 0:7488a229e6fc | 171 | message.qos = MQTT::QOS0; |
hkjung | 0:7488a229e6fc | 172 | message.retained = false; |
hkjung | 0:7488a229e6fc | 173 | message.dup = false; |
hkjung | 0:7488a229e6fc | 174 | message.payload = (void*)buf; |
hkjung | 0:7488a229e6fc | 175 | message.payloadlen = strlen(buf); |
hkjung | 0:7488a229e6fc | 176 | |
hkjung | 0:7488a229e6fc | 177 | LOG("Publishing %s\r\n", buf); |
hkjung | 0:7488a229e6fc | 178 | return client->publish(pubTopic, message); |
hkjung | 0:7488a229e6fc | 179 | } |
hkjung | 0:7488a229e6fc | 180 | |
hkjung | 0:7488a229e6fc | 181 | char* getMac(EthernetInterface& eth, char* buf, int buflen) // Obtain MAC address |
hkjung | 0:7488a229e6fc | 182 | { |
hkjung | 0:7488a229e6fc | 183 | strncpy(buf, eth.getMACAddress(), buflen); |
hkjung | 0:7488a229e6fc | 184 | |
hkjung | 0:7488a229e6fc | 185 | char* pos; // Remove colons from mac address |
hkjung | 0:7488a229e6fc | 186 | while ((pos = strchr(buf, ':')) != NULL) |
hkjung | 0:7488a229e6fc | 187 | memmove(pos, pos + 1, strlen(pos) + 1); |
hkjung | 0:7488a229e6fc | 188 | return buf; |
hkjung | 0:7488a229e6fc | 189 | } |
hkjung | 0:7488a229e6fc | 190 | |
hkjung | 0:7488a229e6fc | 191 | void messageArrived(MQTT::MessageData& md) |
hkjung | 0:7488a229e6fc | 192 | { |
hkjung | 0:7488a229e6fc | 193 | MQTT::Message &message = md.message; |
hkjung | 0:7488a229e6fc | 194 | char topic[md.topicName.lenstring.len + 1]; |
hkjung | 0:7488a229e6fc | 195 | |
hkjung | 0:7488a229e6fc | 196 | sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data); |
hkjung | 0:7488a229e6fc | 197 | |
hkjung | 0:7488a229e6fc | 198 | LOG("Message arrived on topic %s: %.*s\r\n", topic, message.payloadlen, message.payload); |
hkjung | 0:7488a229e6fc | 199 | |
hkjung | 0:7488a229e6fc | 200 | // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/ |
hkjung | 0:7488a229e6fc | 201 | char* start = strstr(topic, "/cmd/") + 5; |
hkjung | 0:7488a229e6fc | 202 | int len = strstr(topic, "/fmt/") - start; |
hkjung | 0:7488a229e6fc | 203 | |
hkjung | 0:7488a229e6fc | 204 | if (memcmp(start, "blink", len) == 0) { |
hkjung | 0:7488a229e6fc | 205 | char payload[message.payloadlen + 1]; |
hkjung | 0:7488a229e6fc | 206 | sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload); |
hkjung | 0:7488a229e6fc | 207 | |
hkjung | 0:7488a229e6fc | 208 | char* pos = strchr(payload, '}'); |
hkjung | 0:7488a229e6fc | 209 | if (pos != NULL) { |
hkjung | 0:7488a229e6fc | 210 | *pos = '\0'; |
hkjung | 0:7488a229e6fc | 211 | if ((pos = strchr(payload, ':')) != NULL) { |
hkjung | 0:7488a229e6fc | 212 | int blink_rate = atoi(pos + 1); |
hkjung | 0:7488a229e6fc | 213 | blink_interval = (blink_rate <= 0) ? 0 : (blink_rate > 50 ? 1 : 50/blink_rate); |
hkjung | 0:7488a229e6fc | 214 | } |
hkjung | 0:7488a229e6fc | 215 | } |
hkjung | 0:7488a229e6fc | 216 | } else |
hkjung | 0:7488a229e6fc | 217 | WARN("Unsupported command: %.*s\r\n", len, start); |
hkjung | 0:7488a229e6fc | 218 | //WARN("Unsupported command: %.*s\n", len, start); |
hkjung | 0:7488a229e6fc | 219 | } |
hkjung | 0:7488a229e6fc | 220 | |
hkjung | 0:7488a229e6fc | 221 | int main (void) |
hkjung | 0:7488a229e6fc | 222 | { |
hkjung | 0:7488a229e6fc | 223 | baud(115200); |
hkjung | 0:7488a229e6fc | 224 | |
hkjung | 0:7488a229e6fc | 225 | // Board init indicator : Init success |
hkjung | 0:7488a229e6fc | 226 | red(); |
hkjung | 0:7488a229e6fc | 227 | wait(0.2); |
hkjung | 0:7488a229e6fc | 228 | yellow(); |
hkjung | 0:7488a229e6fc | 229 | wait(0.2); |
hkjung | 0:7488a229e6fc | 230 | green(); |
hkjung | 0:7488a229e6fc | 231 | wait(0.2); |
hkjung | 0:7488a229e6fc | 232 | off(); |
hkjung | 0:7488a229e6fc | 233 | wait(0.2); |
hkjung | 0:7488a229e6fc | 234 | // end of board init indicator |
hkjung | 0:7488a229e6fc | 235 | |
hkjung | 0:7488a229e6fc | 236 | quickstartMode = (strcmp(org, "quickstart") == 0); |
hkjung | 0:7488a229e6fc | 237 | //displayMessage("Connecting"); |
hkjung | 0:7488a229e6fc | 238 | printf("Connecting...\r\n"); |
hkjung | 0:7488a229e6fc | 239 | |
hkjung | 0:7488a229e6fc | 240 | #if defined(TARGET_WIZwiki_W7500) |
hkjung | 0:7488a229e6fc | 241 | yellow(); |
hkjung | 0:7488a229e6fc | 242 | #endif |
hkjung | 0:7488a229e6fc | 243 | |
hkjung | 0:7488a229e6fc | 244 | MQTTEthernet ipstack; |
hkjung | 0:7488a229e6fc | 245 | MQTT::Client<MQTTEthernet, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack); |
hkjung | 0:7488a229e6fc | 246 | |
hkjung | 0:7488a229e6fc | 247 | if (quickstartMode) { |
hkjung | 0:7488a229e6fc | 248 | getMac(ipstack.getEth(), id, sizeof(id)); |
hkjung | 0:7488a229e6fc | 249 | //printf("%s\r\n", id); //?? |
hkjung | 0:7488a229e6fc | 250 | } |
hkjung | 0:7488a229e6fc | 251 | |
hkjung | 0:7488a229e6fc | 252 | attemptConnect(&client, &ipstack); |
hkjung | 0:7488a229e6fc | 253 | |
hkjung | 0:7488a229e6fc | 254 | if (!quickstartMode) |
hkjung | 0:7488a229e6fc | 255 | { |
hkjung | 0:7488a229e6fc | 256 | int rc = 0; |
hkjung | 0:7488a229e6fc | 257 | if ((rc = client.subscribe("iot-2/cmd/+/fmt/json", MQTT::QOS1, messageArrived)) != 0) |
hkjung | 0:7488a229e6fc | 258 | WARN("rc from MQTT subscribe is %d\r\n", rc); |
hkjung | 0:7488a229e6fc | 259 | //WARN("rc from MQTT subscribe is %d\n", rc); |
hkjung | 0:7488a229e6fc | 260 | } |
hkjung | 0:7488a229e6fc | 261 | |
hkjung | 0:7488a229e6fc | 262 | blink_interval = 0; |
hkjung | 0:7488a229e6fc | 263 | int count = 0; |
hkjung | 0:7488a229e6fc | 264 | |
hkjung | 0:7488a229e6fc | 265 | while(true) |
hkjung | 0:7488a229e6fc | 266 | { |
hkjung | 0:7488a229e6fc | 267 | //if (++count == 100) |
hkjung | 0:7488a229e6fc | 268 | if (++count == 500) |
hkjung | 0:7488a229e6fc | 269 | { // Publish a message every second |
hkjung | 0:7488a229e6fc | 270 | |
hkjung | 0:7488a229e6fc | 271 | //printf("A0: %0.4f, A1: %0.4f\r\n", ain0.read(), ain1.read()); |
hkjung | 0:7488a229e6fc | 272 | |
hkjung | 0:7488a229e6fc | 273 | if (publish(&client, &ipstack) != 0) |
hkjung | 0:7488a229e6fc | 274 | attemptConnect(&client, &ipstack); // if we have lost the connection |
hkjung | 0:7488a229e6fc | 275 | count = 0; |
hkjung | 0:7488a229e6fc | 276 | } |
hkjung | 0:7488a229e6fc | 277 | |
hkjung | 0:7488a229e6fc | 278 | client.yield(10); // allow the MQTT client to receive messages |
hkjung | 0:7488a229e6fc | 279 | } |
hkjung | 0:7488a229e6fc | 280 | } |
hkjung | 0:7488a229e6fc | 281 |