In this project I will create how to monitor temperature, Switch On/Off Fish Feeder & Fish Waterpump

It's very useful for your fish pond.

Using Cayenne App for easier setup.

Step 1: Hardware Components

Arduino Board - https://goo.gl/MpCaGC

Arduino Ethernet Shield - https://goo.gl/RHUufR

Mini Servo - https://goo.gl/Ef5DBa

DS18B20 - https://goo.gl/4q88A8

Breadboard - https://goo.gl/4KybJo

Relay - https://goo.gl/x8vUnV

Transistor IRFZ44N - https://goo.gl/F6oZJa

Resistor 4.75k Ohm - https://goo.gl/Tk3Gr7

YWRobot Breadboard Module - https://goo.gl/9HBzAd

Cable Support - https://goo.gl/UnkBuc

3D Print Fish Feeder - https://goo.gl/r7fCTK

Step 2: Connections

P.S
Hacked Mini Servo to Spin 360 Degree / Continuous Rotation

Step 3: Upload Sketch

//#define CAYENNE_DEBUG         // Uncomment to show debug messages
#define CAYENNE_PRINT Serial  // Comment this out to disable prints and save space
#include 
#include 
#include 
// Virtual Pin of the TMP36 widget.
#define VIRTUAL_PIN 0
#define RELAY_DIGITAL_PIN 8
#define VIRTUAL_PIN_MOTOR V4
// Virtual Pin of the DS18B20 widget.
#define VIRTUAL_PIN_TMP V2
// Digital pin the DS18B20 is connected to. Do not use digital pins 0 or 1 since those conflict with the use of Serial.
const int tmpPin = 2;
OneWire oneWire(tmpPin);
DallasTemperature sensors(&oneWire);
// motor pin
int motorPin = 3;
// Cayenne authentication token. This should be obtained from the Cayenne Dashboard.
char token[] = "Change Your Token";
void setup()
{
	// set digital pin to output
	pinMode(RELAY_DIGITAL_PIN, OUTPUT);
	sensors.begin();
	Serial.begin(9600);
	Cayenne.begin(token);
}
CAYENNE_IN(VIRTUAL_PIN)
{
	// get value sent from dashboard
	int currentValue = getValue.asInt(); // 0 to 1
										 // assuming you wire your relay as normally open
	if (currentValue == 0) {
		digitalWrite(RELAY_DIGITAL_PIN, HIGH);
	}
	else {
		digitalWrite(RELAY_DIGITAL_PIN, LOW);
	}
}
CAYENNE_IN(VIRTUAL_PIN_MOTOR)
{
	int speed = 250;
	// read the integer value which should be 0 or 1
	int enabled = getValue.asInt();
	if (enabled == 1) {
		// turns on the motor at the specified speed
		analogWrite(motorPin, speed);
	}
	else {
		// turn motor off
		analogWrite(motorPin, 0);
	}
}
void loop()
{
	Cayenne.run();
}
// This function is called when the Cayenne widget requests data for the Virtual Pin.
CAYENNE_OUT(VIRTUAL_PIN_TMP)
{
	// Send the command to get temperatures.
	sensors.requestTemperatures();
	// This command writes the temperature in Celsius to the Virtual Pin.
	Cayenne.celsiusWrite(VIRTUAL_PIN_TMP, sensors.getTempCByIndex(0));
	// To send the temperature in Fahrenheit use the corresponding code below.
	//Cayenne.fahrenheitWrite(VIRTUAL_PIN, sensors.getTempFByIndex(0));
}

Step 4: Setup Cayenne Dashboard

Add Arduino device to Cayenne connection via ethernet shield and you gived auth tokens to be listed on the website after that we add device sensor / actuators.
Add DS18B20 with Virtual Connectivity and given sketch file / code for Temperature Sensor which directly in monitoring on dashboard web / mobile device, The DS18B20 sensor sends temperature data to the web / mobile device dashboard
Actuator will be given a turn on and off command from the web / mobile dashboard where the Motor Switch moves the Servo on the Fish Feeder
Relay Switch to power the water pump on the pool. Motor Switch with Virtual Connectivity and given sketch file / code to switch the servo switching using buttons in dashboard web / mobile device. Relay Switch with Virtual Connectivity and given sketch file / code for switching current on relays connected with arduino-controlled electric current using buttons on the web / mobile device dashboard