Split individual sensors into separate example sketches.

Author: jburhenn

examples/Sensors/BMP180_PRESSURE/BMP180_PRESSURE.ino

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+/*
+Cayenne BMP180 Pressure Example
+
+This sketch shows how to send BMP180 Pressure Sensor data to the Cayenne Dashboard.
+
+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 Adafruit Unified Sensor library (https://github.com/adafruit/Adafruit_Sensor) from the Arduino Library Manager.
+2. Install the Adafruit BMP085 Unified library (https://github.com/adafruit/Adafruit_BMP085_Unified) from the Arduino Library Manager.
+3. Attach a BMP180 to your Arduino.
+   Schematic:
+   BMP180    Arduino
+   [VDD] --- [3V3]
+   [GND] --- [GND]
+   [SDA] --- [Analog Pin 4] (The SDA may be different on some devices, e.g. for Arduino Mega the SDA pin is Digital Pin 20)
+   [SCL] --- [Analog Pin 5] (The SCL may be different on some devices, e.g. for Arduino Mega the SCL pin is Digital Pin 21)
+4. Set the VIRTUAL_CHANNEL value below to a free virtual channel (or the virtual channel of the BMP180 Pressure Sensor widget you have added) in the Dashboard.
+5. Set the Cayenne authentication info to match the authentication info from the Dashboard.
+6. Compile and upload this sketch.
+7. Once the Arduino connects to the Dashboard it should automatically create a temporary display widget (or update the BMP180 Pressure Sensor widget you have added) with data.
+   To make a temporary widget permanent click the plus sign on the widget.
+*/
+
+#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
+#include <Wire.h>
+#include <Adafruit_Sensor.h>
+#include <Adafruit_BMP085_U.h>
+#include <CayenneMQTTEthernet.h>
+
+// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
+char username[] = "MQTT_USERNAME";
+char password[] = "MQTT_PASSWORD";
+char clientID[] = "CLIENT_ID";
+
+#define VIRTUAL_CHANNEL 1
+
+Adafruit_BMP085_Unified bmp = Adafruit_BMP085_Unified(10180);
+bool bmpSensorDetected = true;
+
+void setup()
+{
+	Serial.begin(9600);
+	Cayenne.begin(username, password, clientID);
+	if (!bmp.begin())
+	{
+		CAYENNE_LOG("No BMP sensor detected");
+		bmpSensorDetected = false;
+	}
+}
+
+void loop()
+{
+	Cayenne.loop();
+}
+
+// This function is called at intervals to send barometer sensor data to Cayenne.
+CAYENNE_OUT(VIRTUAL_CHANNEL)
+{
+	if (bmpSensorDetected)
+	{
+		// Send the command to get data.
+		sensors_event_t event;
+		bmp.getEvent(&event);
+
+		if (event.pressure)
+		{
+			// Send the value to Cayenne in hectopascals.
+			Cayenne.hectoPascalWrite(VIRTUAL_CHANNEL, event.pressure);
+		}
+	}
+	else
+	{
+		CAYENNE_LOG("No BMP sensor detected");
+	}
+}

examples/Sensors/BMP180_TEMPERATURE/BMP180_TEMPERATURE.ino

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+/*
+Cayenne BMP180 Temperature Example
+
+This sketch shows how to send BMP180 Temperature Sensor data to the Cayenne Dashboard.
+
+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 Adafruit Unified Sensor library (https://github.com/adafruit/Adafruit_Sensor) from the Arduino Library Manager.
+2. Install the Adafruit BMP085 Unified library (https://github.com/adafruit/Adafruit_BMP085_Unified) from the Arduino Library Manager.
+3. Attach a BMP180 to your Arduino.
+   Schematic:
+   BMP180    Arduino
+   [VDD] --- [3V3]
+   [GND] --- [GND]
+   [SDA] --- [Analog Pin 4] (The SDA may be different on some devices, e.g. for Arduino Mega the SDA pin is Digital Pin 20)
+   [SCL] --- [Analog Pin 5] (The SCL may be different on some devices, e.g. for Arduino Mega the SCL pin is Digital Pin 21)
+4. Set the VIRTUAL_CHANNEL value below to a free virtual channel (or the virtual channel of the BMP180 Temperature Sensor widget you have added) in the Dashboard.
+5. Set the Cayenne authentication info to match the authentication info from the Dashboard.
+6. Compile and upload this sketch.
+7. Once the Arduino connects to the Dashboard it should automatically create a temporary display widget (or update the BMP180 Temperature Sensor widget you have added) with data.
+   To make a temporary widget permanent click the plus sign on the widget.
+*/
+
+#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
+#include <Wire.h>
+#include <Adafruit_Sensor.h>
+#include <Adafruit_BMP085_U.h>
+#include <CayenneMQTTEthernet.h>
+
+// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
+char username[] = "MQTT_USERNAME";
+char password[] = "MQTT_PASSWORD";
+char clientID[] = "CLIENT_ID";
+
+#define VIRTUAL_CHANNEL 1
+
+Adafruit_BMP085_Unified bmp = Adafruit_BMP085_Unified(10180);
+bool bmpSensorDetected = true;
+
+void setup()
+{
+	Serial.begin(9600);
+	Cayenne.begin(username, password, clientID);
+	if (!bmp.begin())
+	{
+		CAYENNE_LOG("No BMP sensor detected");
+		bmpSensorDetected = false;
+	}
+}
+
+void loop()
+{
+	Cayenne.loop();
+}
+
+// This function is called at intervals to send temperature sensor data to Cayenne.
+CAYENNE_OUT(VIRTUAL_CHANNEL)
+{
+	if (bmpSensorDetected)
+	{
+		float temperature;
+		bmp.getTemperature(&temperature);
+		// Send the value to Cayenne in Celsius.
+		Cayenne.celsiusWrite(VIRTUAL_CHANNEL, temperature);
+	}
+	else
+	{
+		CAYENNE_LOG("No BMP sensor detected");
+	}
+}

examples/Sensors/VCNL4000_DISTANCE/VCNL4000_DISTANCE.ino

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+/*
+Cayenne VCNL4000 Distance Example
+
+This sketch shows how to send VCNL4000 Distance Sensor data to the Cayenne Dashboard.
+
+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. Attach a VCNL4000 to your Arduino.
+   Schematic:
+   VCNL4000      Arduino
+   [VDD] ------- [3V3]
+   [GND] ------- [GND]
+   [SDA] ------- [Analog Pin 4] (The SDA may be different on some devices, e.g. for Arduino Mega the SDA pin is Digital Pin 20)
+   [SCL] ------- [Analog Pin 5] (The SCL may be different on some devices, e.g. for Arduino Mega the SCL pin is Digital Pin 21)
+2. Set the VIRTUAL_CHANNEL value below to a free virtual channel (or the virtual channel of the VCNL4000 Distance Sensor widget you have added) in the Dashboard.
+3. Set the Cayenne authentication info to match the authentication info from the Dashboard.
+4. Compile and upload this sketch.
+5. Once the Arduino connects to the Dashboard it should automatically create temporary display widget (or update the VCNL4000 Distance Sensor widget you have added) with data.
+   To make a temporary widget permanent click the plus sign on the widget.
+*/
+
+#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
+#include <CayenneVCNL4000.h>
+#include <CayenneMQTTEthernet.h>
+
+// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
+char username[] = "MQTT_USERNAME";
+char password[] = "MQTT_PASSWORD";
+char clientID[] = "CLIENT_ID";
+
+#define VIRTUAL_CHANNEL 1
+
+VCNL4000 proximitySensor;
+bool sensorDetected = true;
+
+void setup()
+{
+	Serial.begin(9600);
+	Cayenne.begin(username, password, clientID);
+	if (!proximitySensor.begin())
+	{
+		CAYENNE_LOG("No sensor detected");
+		sensorDetected = false;
+	}
+}
+
+void loop()
+{
+	Cayenne.loop();
+}
+
+// This function is called at intervals to send distance data to Cayenne.
+CAYENNE_OUT(VIRTUAL_CHANNEL)
+{
+	if (sensorDetected)
+	{
+		//The getMillimeters() function only provides a rough estimate of distance. If greater accuracy is desired
+		//settings can be tweaked in CayenneVCNL400.h.
+		int distance = proximitySensor.getMillimeters();
+		if (distance != NO_PROXIMITY) {
+			Cayenne.virtualWrite(VIRTUAL_CHANNEL, distance, TYPE_PROXIMITY, UNIT_MILLIMETER);
+		}
+	}
+	else
+	{
+		CAYENNE_LOG("No sensor detected");
+	}
+}

examples/Sensors/VCNL4000_LUMINOSITY/VCNL4000_LUMINOSITY.ino

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+/*
+Cayenne VCNL4000 Luminosity Example
+
+This sketch shows how to send VCNL4000 Luminosity Sensor data to the Cayenne Dashboard.
+
+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. Attach a VCNL4000 to your Arduino.
+   Schematic:
+   VCNL4000      Arduino
+   [VDD] ------- [3V3]
+   [GND] ------- [GND]
+   [SDA] ------- [Analog Pin 4] (The SDA may be different on some devices, e.g. for Arduino Mega the SDA pin is Digital Pin 20)
+   [SCL] ------- [Analog Pin 5] (The SCL may be different on some devices, e.g. for Arduino Mega the SCL pin is Digital Pin 21)
+2. Set the VIRTUAL_CHANNEL value below to a free virtual channel (or the luminosity channel of the VCNL4000 Sensor widget you have added) in the Dashboard.
+3. Set the Cayenne authentication info to match the authentication info from the Dashboard.
+4. Compile and upload this sketch.
+5. Once the Arduino connects to the Dashboard it should automatically create temporary display widget (or update the VCNL4000 Luminosity Sensor widget you have added) with data.
+   To make a temporary widget permanent click the plus sign on the widget.
+*/
+
+#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
+#include <CayenneVCNL4000.h>
+#include <CayenneMQTTEthernet.h>
+
+// Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
+char username[] = "MQTT_USERNAME";
+char password[] = "MQTT_PASSWORD";
+char clientID[] = "CLIENT_ID";
+
+#define VIRTUAL_CHANNEL 1
+
+VCNL4000 proximitySensor;
+bool sensorDetected = true;
+
+void setup()
+{
+	Serial.begin(9600);
+	Cayenne.begin(username, password, clientID);
+	if (!proximitySensor.begin())
+	{
+		CAYENNE_LOG("No sensor detected");
+		sensorDetected = false;
+	}
+}
+
+void loop()
+{
+	Cayenne.loop();
+}
+
+// This function is called at intervals to send luminosity data to Cayenne.
+CAYENNE_OUT(VIRTUAL_CHANNEL)
+{
+	if (sensorDetected)
+	{
+		Cayenne.luxWrite(VIRTUAL_CHANNEL, proximitySensor.getLux());
+	}
+	else
+	{
+		CAYENNE_LOG("No sensor detected");
+	}
+}