Chicken Coop Automation

/*****************************************************************

* Project Name: Chicken Life Support

* Author: Benton Murray

* Date: 11/23/2020

* Description: This project is designed to be a life support

* module for a chicken coop. Another way to think of

* it is as a climate control unit. It will measure

* temperature and light and turn on and off different

* connected devices depending on what is needed based

* on the data it receives.

******************************************************************/

#include <OneWire.h>

#include <DallasTemperature.h>

#define ONE_WIRE_BUS 2

OneWire oneWire(ONE_WIRE_BUS);

DallasTemperature sensors(&oneWire);

// declare digital pin variables

int solRelay = 7;

int lampRelay = 6;

int heatRelay = 5;

int seasonBTN = 12;

int photoSensor = A5;

int buttonStateLED = 13;

// variables for program

float temp;

int lightVal;

int buttonState;

int timerA;

int timerB;

void setup()

{

pinMode(solRelay, OUTPUT);

pinMode(lampRelay, OUTPUT);

pinMode(heatRelay, OUTPUT);

pinMode(seasonBTN, OUTPUT);

pinMode(buttonStateLED, OUTPUT);

// Initialize the timer variables

timerA = 0;

timerB = 0;

Serial.begin(9600);

sensors.begin();

}

void loop()

{

/*****************************************************************

* Begin reading the temperature sensor and map to temp variable

* Begin reading the light sensor and map to lightVal variable

*****************************************************************/

sensors.requestTemperatures();

temp = sensors.getTempFByIndex(0);

lightVal = analogRead(photoSensor);

/*************************************

* Enter into light level relay logic

*************************************/

if (lightVal < 400)

{

digitalWrite(lampRelay, HIGH);

}

else

{

digitalWrite(lampRelay, LOW);

}

/****************************************************************************

* Check button for seasonal setting. Enter into logic conditions for either

* the solenoid relay or the water heater relay.

****************************************************************************/

digitalWrite(seasonBTN, HIGH); // Setup driving voltage for seasonal button from I/O

buttonState = digitalRead(seasonBTN); // Determine state of button for seasonal setting

/***********************************

* Enter into solenoid relay logic

***********************************/

if (buttonState == HIGH) // Apply button statement in logic for relay activation

{

timerB = 0; // Reset timer to 0 if seasonBTN is changed

digitalWrite(heatRelay, LOW); // Make sure heat relay is turned off

digitalWrite(buttonStateLED, LOW); // Button indicator on board LED for testing

if (temp > 80 & (timerA > 0 & timerA < 1270)) // Activate solenoid if temperature gets too high

{

digitalWrite(solRelay, HIGH);

timerA += 1; // Run for 15 minutes

}

else if (timerA > 1270)

{

digitalWrite(solRelay, LOW);

timerA = -2540; // Set timer for a 30 minute count

}

else

{

digitalWrite(solRelay, LOW);

timerA += 1; // Increase timer to zero so loop can re-engage

}

}

/***************************************

* Enter into water heater relay logic

***************************************/

else if (buttonState == LOW)

{

timerA = 0; // Reset timer to 0 if seasonBTN is changed

digitalWrite(solRelay, LOW); // Make sure solenoid relay is turned off

digitalWrite(buttonStateLED, HIGH); // Button indicator on board LED for testing

if (temp < 38 & (timerB > 0 & timerB < 1270)) // Activate heater if water temp gets too low

{

digitalWrite(heatRelay, HIGH);

timerB += 1; // Run for 15 minutes

}

else if (timerB > 1270)

{

digitalWrite(heatRelay, LOW);

timerB = -2540; // Set timer for 30 minute count

}

else

{

digitalWrite(heatRelay, LOW);

timerB += 1; // Increase timer to zero so loop can re-engage

}

}

}