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Dependencies: Cayenne-MQTT-mbed Servo nfc X_NUCLEO_IDW01M1v2 NetworkSocketAPI 13
main.cpp
- Committer:
- kapitaninternet
- Date:
- 2019-09-07
- Revision:
- 13:7b3b429e9731
- Parent:
- 12:32dbf8ff8d80
- Child:
- 14:c5aab7546de9
File content as of revision 13:7b3b429e9731:
#include "MQTTTimer.h" #include "CayenneMQTTClient.h" #include "MQTTNetworkIDW01M1.h" #include "SpwfInterface.h" #include "mbed.h" #include "XNucleoIKS01A2.h" // czujniki ruchu i otoczenia #include "XNucleoNFC01A1.h" // modul nfc #include "NDefLib/NDefNfcTag.h" #include "NDefLib/RecordType/RecordURI.h" #include "Servo.h" /* Instantiate the expansion board */ static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance(D14, D15, D4, D5); /* Retrieve the composing elements of the expansion board */ static HTS221Sensor *hum_temp = mems_expansion_board->ht_sensor; static LPS22HBSensor *press_temp = mems_expansion_board->pt_sensor; // Cayenne authentication info. This should be obtained from the Cayenne Dashboard. char* username = "68880f30-7425-11e9-beb3-736c9e4bf7d0"; char* password = "19f07b4d8806fe42bdda724980634f39d8e639ba"; char* clientID = "bb8e7cc0-74b9-11e9-94e9-493d67fd755e"; AnalogIn ain(A0); DigitalOut myLed(LED2); Servo myservo(PA_6); DigitalOut actuatorPin2(PA_7); float voltageMultiplier = 5.0; int publishInterval = 1000; // WiFi network info. char* ssid = "Interneto"; char* wifiPassword = "matu1234"; // /* Helper function for printing floats & doubles */ // static char *print_double(char* str, double v, int decimalDigits=2) // { // int i = 1; // int intPart, fractPart; // int len; // char *ptr; // /* prepare decimal digits multiplicator */ // for (;decimalDigits!=0; i*=10, decimalDigits--); // /* calculate integer & fractinal parts */ // intPart = (int)v; // fractPart = (int)((v-(double)(int)v)*i); // /* fill in integer part */ // sprintf(str, "%i.", intPart); // /* prepare fill in of fractional part */ // len = strlen(str); // ptr = &str[len]; // /* fill in leading fractional zeros */ // for (i/=10;i>1; i/=10, ptr++) { // if (fractPart >= i) { // break; // } // *ptr = '0'; // } // /* fill in (rest of) fractional part */ // sprintf(ptr, "%i", fractPart); // return str; // } /** * Write a Ndef URI message linking to st.com site. * Write an NDef message with a Uri record linking the st.com site * @param nfcNucleo expansion board where write the NDef message */ SpwfSAInterface interface(D8, D2); // TX, RX MQTTNetwork<SpwfSAInterface> network(interface); CayenneMQTT::MQTTClient<MQTTNetwork<SpwfSAInterface>, MQTTTimer> mqttClient(network, username, password, clientID); /** * Print the message info. * @param[in] message The message received from the Cayenne server. */ void outputMessage(CayenneMQTT::MessageData& message) { switch (message.topic) { case COMMAND_TOPIC: printf("topic=Command"); break; case CONFIG_TOPIC: printf("topic=Config"); break; default: printf("topic=%d", message.topic); break; } printf(" channel=%d", message.channel); if (message.clientID) { printf(" clientID=%s", message.clientID); } if (message.type) { printf(" type=%s", message.type); } for (size_t i = 0; i < message.valueCount; ++i) { if (message.getValue(i)) { printf(" value=%s", message.getValue(i)); } if (message.getUnit(i)) { printf(" unit=%s", message.getUnit(i)); } } if (message.id) { printf(" id=%s", message.id); } printf("\n"); } /** * Handle messages received from the Cayenne server. * @param[in] message The message received from the Cayenne server. */ void messageArrived(CayenneMQTT::MessageData& message) { int error = 0; // Add code to process the message. Here we just ouput the message data. outputMessage(message); if (message.topic == COMMAND_TOPIC) { switch(message.channel) { case 4: // Set the onboard LED state & actuator PIN myLed = atoi(message.getValue()); wait(0.1); myservo = myservo <= 0 ? 0.5 : -0.05; actuatorPin2 = atoi(message.getValue()); // Publish the updated LED state if ((error = mqttClient.publishData(DATA_TOPIC, message.channel, NULL, NULL, message.getValue())) != CAYENNE_SUCCESS) { printf("Publish LED state failure, error: %d\n", error); } break; } // If this is a command message we publish a response. Here we are just sending a default 'OK' response. // An error response should be sent if there are issues processing the message. if ((error = mqttClient.publishResponse(message.id, NULL, message.clientID)) != CAYENNE_SUCCESS) { printf("Response failure, error: %d\n", error); } } } /** * Connect to the Cayenne server. * @return Returns CAYENNE_SUCCESS if the connection succeeds, or an error code otherwise. */ int connectClient(void) { int error = 0; // Connect to the server. printf("Connecting to %s:%d\n", CAYENNE_DOMAIN, CAYENNE_PORT); while ((error = network.connect(CAYENNE_DOMAIN, CAYENNE_PORT)) != 0) { printf("TCP connect failed, error: %d\n", error); wait(2); } if ((error = mqttClient.connect()) != MQTT::SUCCESS) { printf("MQTT connect failed, error: %d\n", error); return error; } printf("Connected\n"); // Subscribe to required topics. if ((error = mqttClient.subscribe(COMMAND_TOPIC, CAYENNE_ALL_CHANNELS)) != CAYENNE_SUCCESS) { printf("Subscription to Command topic failed, error: %d\n", error); } if ((error = mqttClient.subscribe(CONFIG_TOPIC, CAYENNE_ALL_CHANNELS)) != CAYENNE_SUCCESS) { printf("Subscription to Config topic failed, error:%d\n", error); } // Send device info. Here we just send some example values for the system info. These should be changed to use actual system data, or removed if not needed. mqttClient.publishData(SYS_VERSION_TOPIC, CAYENNE_NO_CHANNEL, NULL, NULL, CAYENNE_VERSION); mqttClient.publishData(SYS_MODEL_TOPIC, CAYENNE_NO_CHANNEL, NULL, NULL, "mbedDevice"); return CAYENNE_SUCCESS; } /** * Main loop where MQTT code is run. */ void loop(void) { // Start the countdown timer for publishing data every 5 seconds. Change the timeout parameter to publish at a different interval. MQTTTimer timer(publishInterval); while (true) { // Yield to allow MQTT message processing. mqttClient.yield(1000); // Check that we are still connected, if not, reconnect. if (!network.connected() || !mqttClient.connected()) { network.disconnect(); mqttClient.disconnect(); while (connectClient() != CAYENNE_SUCCESS) { wait(3); } } // Publish data every few seconds. This should be changed to send your actual data to Cayenne. if (timer.expired()) { int error = 0; uint8_t id; float value1, value2, value3; // char buffer1[32], buffer2[32]; /* Enable all sensors */ hum_temp->enable(); press_temp->enable(); hum_temp->read_id(&id); press_temp->read_id(&id); hum_temp->get_temperature(&value1); hum_temp->get_humidity(&value3); // press_temp->get_temperature(&value1); press_temp->get_pressure(&value2); // printf("LPS22HB: [temp] %7s C, [press] %s mbar\r\n", print_double(buffer1, value1), print_double(buffer2, value2)); float voltage_read = ain.read() * voltageMultiplier; if ((error = mqttClient.publishData(DATA_TOPIC, 1, TYPE_TEMPERATURE, UNIT_CELSIUS, value1)) != CAYENNE_SUCCESS) { printf("Publish temperature failed, error: %d\n", error); } if ((error = mqttClient.publishData(DATA_TOPIC, 5, TYPE_RELATIVE_HUMIDITY, UNIT_PERCENT, value3)) != CAYENNE_SUCCESS) { printf("Publish humidity failed, error: %d\n", error); } if ((error = mqttClient.publishData(DATA_TOPIC, 3, TYPE_VOLTAGE, UNIT_VOLTS, voltage_read)) != CAYENNE_SUCCESS) { printf("Publish voltage failed, error: %d\n", error); } if ((error = mqttClient.publishData(DATA_TOPIC, 2, TYPE_BAROMETRIC_PRESSURE, UNIT_HECTOPASCAL, value2)) != CAYENNE_SUCCESS) { printf("Publish barometric pressure failed, error: %d\n", error); } // Restart the countdown timer for publishing data every 2 seconds. Change the timeout parameter to publish at a different interval. timer.countdown_ms(publishInterval); } } } /** * Main function. */ int main() { myLed = 0; actuatorPin2 = 0; interface.connect(ssid, wifiPassword, NSAPI_SECURITY_WPA2); // Set the default function that receives Cayenne messages. mqttClient.setDefaultMessageHandler(messageArrived); // Connect to Cayenne. if (connectClient() == CAYENNE_SUCCESS) { // Run main loop. loop(); } if (mqttClient.connected()) mqttClient.disconnect(); if (network.connected()) network.disconnect(); return 0; }