/* This example shows how to connect BME280 to Cayenne using an Arduino/Genuino MKR1000 and send/receive sample data. The CayenneMQTT Library is required to run this sketch. If you have not already done so you can install it from the Arduino IDE Library Manager. Steps: 1. Install the Arduino SAMD Boards from the Arduino IDE Boards Manager if you have not already done so. 2. Select the MKR1000 board from the Arduino IDE Tools menu. 3. Set the Cayenne authentication info to match the authentication info from the Dashboard. 4. Set the network name and password. 5. Compile and upload the sketch. 6. A temporary widget will be automatically generated in the Cayenne Dashboard. To make the widget permanent click the plus sign on the widget. */ //#define CAYENNE_DEBUG // Uncomment to show debug messages #define CAYENNE_PRINT Serial // Comment this out to disable prints and save space #include #include #include #include Adafruit_BME280 bme; // WiFi network info. char ssid[] = "ssid"; char wifiPassword[] = "wifiPassword"; // Cayenne authentication info. This should be obtained from the Cayenne Dashboard. char username[] = "MQTT_USERNAME"; char password[] = "MQTT_PASSWORD"; char clientID[] = "CLIENT_ID"; void setup() { Serial.begin(9600); Cayenne.begin(username, password, clientID, ssid, wifiPassword); bme.begin(0x76); } void loop() { Cayenne.loop(); } // Default function for sending sensor data at intervals to Cayenne. // You can also use functions for specific channels, e.g CAYENNE_OUT(1) for sending channel 1 data. CAYENNE_OUT_DEFAULT() { // Write data to Cayenne here. This example just sends the current uptime in milliseconds on virtual channel 0. Cayenne.virtualWrite(0, millis()); Cayenne.celsiusWrite(1, bme.readTemperature()); Cayenne.virtualWrite(2, bme.readPressure(), "bp", "pa"); Cayenne.virtualWrite(3, bme.readHumidity(), "rel_hum", "p"); } // Default function for processing actuator commands from the Cayenne Dashboard. // You can also use functions for specific channels, e.g CAYENNE_IN(1) for channel 1 commands. CAYENNE_IN_DEFAULT() { CAYENNE_LOG("Channel %u, value %s", request.channel, getValue.asString()); //Process message here. If there is an error set an error message using getValue.setError(), e.g getValue.setError("Error message"); }