Merge pull request #34 from shramik49/master

Delete Arduino Uno Wifi Rev2 Example

Author: jburhenn

examples/Connections/UnoWifiRev2/UnoWifiRev2.ino

@@ -0,0 +1,39 @@
+/*
+Cayenne Tank Widget Example.
+
+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 an analog input device (e.g. a temperature sensor) to your Arduino.
+2. Set the VIRTUAL_CHANNEL value below to the virtual channel of a Tank Custom Widget you have added in the Dashboard.
+3. Update the CAYENNE_OUT function below to send the data from your sensor.
+4. Set the Cayenne authentication info to match the authentication info from the Dashboard.
+5. Compile and upload this sketch.
+*/
+
+//#define CAYENNE_DEBUG       // Uncomment to show debug messages
+#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
+#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";
+
+void setup() {
+	Serial.begin(9600);
+	Cayenne.begin(username, password, clientID);
+}
+
+void loop() {
+	Cayenne.loop();
+}
+
+// Default function for sending sensor data at intervals to Cayenne.
+CAYENNE_OUT(1)
+{
+	// Write data to Cayenne here. 
+	int val = analogRead(0);
+	val = map(val, 0, 1023, 0, 100);  
+	Cayenne.virtualWrite(1, val, "tl", "null");
+}