989
Dependencies: mbed Servo X_NUCLEO_IKS01A2 X_NUCLEO_IDW01M1v2 NetworkSocketAPI NDefLib MQTT
main.cpp
- Committer:
- nikapov
- Date:
- 2016-10-17
- Revision:
- 20:517b559ce91d
- Parent:
- 18:2c229fa282fa
- Child:
- 21:78fac4c1b0fa
File content as of revision 20:517b559ce91d:
/* SpwfInterface NetworkSocketAPI Example Program * Copyright (c) 2015 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "SpwfInterface.h" #include "TCPSocket.h" #include "MQTTClient.h" #include "MQTTWiFi.h" #include <ctype.h> #include "x_nucleo_iks01a1.h" //------------------------------------ // Hyperterminal configuration // 9600 bauds, 8-bit data, no parity //------------------------------------ Serial pc(SERIAL_TX, SERIAL_RX); DigitalOut myled(LED1); SpwfSAInterface spwf(D8, D2, false); bool quickstartMode = true; #define ORG_QUICKSTART // comment to connect to play.internetofthings.ibmcloud.com #define MQTT_MAX_PACKET_SIZE 250 #define MQTT_MAX_PAYLOAD_SIZE 300 // Configuration values needed to connect to IBM IoT Cloud #ifdef ORG_QUICKSTART #define ORG "quickstart" // connect to quickstart.internetofthings.ibmcloud.com/ For a registered connection, replace with your org #define ID "" #define AUTH_TOKEN "" #define DEFAULT_TYPE_NAME "iotsample-mbed-NucleoF401RE" #else #define ORG "play" // connect to play.internetofthings.ibmcloud.com/ For a registered connection, replace with your org #define ID "testnucleo2" // For a registered connection, replace with your id #define AUTH_TOKEN "centrallab"// For a registered connection, replace with your auth-token #define DEFAULT_TYPE_NAME "sensor" #endif #define TYPE DEFAULT_TYPE_NAME // For a registered connection, replace with your type #define MQTT_PORT 1883 #define MQTT_TLS_PORT 8883 #define IBM_IOT_PORT MQTT_PORT // WiFi network credential #define SSID "" // Network must be visible otherwise it can't connect #define PASSW "" #warning "Wifi SSID & password empty" char id[30] = ID; // mac without colons char org[12] = ORG; int connack_rc = 0; // MQTT connack return code const char* ip_addr = ""; char* host_addr = ""; char type[30] = TYPE; char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode bool netConnecting = false; //int connectTimeout = 1000; int connectTimeout = 10; bool mqttConnecting = false; bool netConnected = false; bool connected = false; int retryAttempt = 0; PressureSensor *pressure_sensor; HumiditySensor *humidity_sensor; TempSensor *temp_sensor1; int connect(MQTT::Client<MQTTWiFi, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTWiFi* ipstack) { const char* iot_ibm = ".messaging.internetofthings.ibmcloud.com"; char hostname[strlen(org) + strlen(iot_ibm) + 1]; sprintf(hostname, "%s%s", org, iot_ibm); SpwfSAInterface& WiFi = ipstack->getWiFi(); ip_addr = WiFi.get_ip_address(); printf ("ID: %s\n\r",id); // Construct clientId - d:org:type:id char clientId[strlen(org) + strlen(type) + strlen(id) + 5]; sprintf(clientId, "d:%s:%s:%s", org, type, id); // Network debug statements LOG("=====================================\n\r"); LOG("Connecting WiFi.\n\r"); LOG("IP ADDRESS: %s\n\r", WiFi.get_ip_address()); LOG("MAC ADDRESS: %s\n\r", WiFi.get_mac_address()); LOG("Server Hostname: %s\n\r", hostname); // for(int i = 0; clientId[i]; i++){ // clientId[i] = tolower(clientId[i]); // } LOG("Client ID: %s\n\r", clientId); LOG("=====================================\n\r"); netConnecting = true; ipstack->open(&ipstack->getWiFi()); int rc = ipstack->connect(hostname, IBM_IOT_PORT, connectTimeout); if (rc != 0) { WARN("IP Stack connect returned: %d\n", rc); return rc; } netConnected = true; netConnecting = false; // MQTT Connect mqttConnecting = true; MQTTPacket_connectData data = MQTTPacket_connectData_initializer; data.MQTTVersion = 4; data.struct_version=0; data.clientID.cstring = clientId; if (!quickstartMode) { data.username.cstring = "use-token-auth"; data.password.cstring = auth_token; } if ((rc = client->connect(data)) == 0) { connected = true; printf ("--->Connected\n\r"); } else { WARN("MQTT connect returned %d\n", rc); } if (rc >= 0) connack_rc = rc; mqttConnecting = false; return rc; } int getConnTimeout(int attemptNumber) { // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute // after 20 attempts, retry every 10 minutes return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600; } void attemptConnect(MQTT::Client<MQTTWiFi, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTWiFi* ipstack) { connected = false; while (connect(client, ipstack) != MQTT_CONNECTION_ACCEPTED) { if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD) { printf ("File: %s, Line: %d\n\r",__FILE__,__LINE__); return; // don't reattempt to connect if credentials are wrong } int timeout = getConnTimeout(++retryAttempt); WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout); // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed // or maybe just add the proper members to do this disconnect and call attemptConnect(...) // this works - reset the system when the retry count gets to a threshold if (retryAttempt == 5) NVIC_SystemReset(); else wait(timeout); } } int publish(MQTT::Client<MQTTWiFi, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTWiFi* ipstack) { MQTT::Message message; char* pubTopic = "iot-2/evt/status/fmt/json"; char buf[MQTT_MAX_PAYLOAD_SIZE]; float temp, press, hum; temp_sensor1->GetTemperature(&temp); pressure_sensor->GetPressure(&press); humidity_sensor->GetHumidity(&hum); sprintf(buf, "{\"d\":{\"ST\":\"Nucleo-IoT-mbed\",\"Temp\":%0.4f,\"Pressure\":\"%0.4f,\",\"Humidity\":%0.4f}}", temp, press, hum); message.qos = MQTT::QOS0; message.retained = false; message.dup = false; message.payload = (void*)buf; message.payloadlen = strlen(buf); LOG("Publishing %s\n", buf); return client->publish(pubTopic, message); } int main() { const char * ssid = SSID; // Network must be visible otherwise it can't connect const char * seckey = PASSW; // Timer tyeld; DevI2C *i2c = new DevI2C(I2C_SDA, I2C_SCL); i2c->frequency(400000); X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance(i2c); pressure_sensor = mems_expansion_board->pt_sensor; temp_sensor1 = mems_expansion_board->ht_sensor; humidity_sensor = mems_expansion_board->ht_sensor; pc.printf("\r\nX-NUCLEO-IDW01M1 mbed Application\r\n"); pc.printf("\r\nconnecting to AP\r\n"); quickstartMode=false; if (strcmp(org, "quickstart") == 0){quickstartMode = true;} MQTTWiFi ipstack(spwf, ssid, seckey, NSAPI_SECURITY_WPA2); MQTT::Client<MQTTWiFi, Countdown, MQTT_MAX_PACKET_SIZE> client(ipstack); if (quickstartMode){ char mac[50]; char *digit=NULL; sprintf (id,"%s", ""); sprintf (mac,"%s",ipstack.getWiFi().get_mac_address()); strcpy (mac, ipstack.getWiFi().get_mac_address()); digit = strtok (mac,":"); while (digit != NULL) { strcat (id, digit); digit = strtok (NULL, ":"); } } attemptConnect(&client, &ipstack); if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD) { while (true) wait(1.0); // Permanent failures - don't retry } int count = 0; // tyeld.start(); while (true) { if (++count == /*100*/2) { // Publish a message every second if (publish(&client, &ipstack) != 0) attemptConnect(&client, &ipstack); // if we have lost the connection count = 0; } // int start = tyeld.read_ms(); client.yield(/*10*/1); // allow the MQTT client to receive messages // printf ("tyeld: %d\n\r",tyeld.read_ms()-start); } }