temperature control power

temp-power-control.ino

#include <OneWire.h>
#include <DallasTemperature.h>

// Data wire is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 9
#define TEMPERATURE_PRECISION 9

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);


// Constants for PowerSwitch tail II
const int powerPin = A0;
boolean powerOn = false;

void setup(void)
{
  
  // This lines just make it so you can plug a DS18B20 directly into 
  // digitial pins 8-10. 
  
  digitalWrite( 8 , LOW );
  pinMode( 8  , OUTPUT );
  digitalWrite( 10 , LOW );  
  pinMode( 10 , OUTPUT );
  
  // start serial port
  Serial.begin(9600);

  Serial.println(F("Starting Up..."));

  pinMode(powerPin, OUTPUT);
  digitalWrite(powerPin, HIGH);

  
  
}


void loop(void)
{ 
  
  #ifdef BUSFAIL
  
    Serial.print(" Test:");
      
    if (sensors.reset()) {
      
      Serial.print("good");
      
    } else {
      
      if (sensors.busFail()) {
        
        Serial.print("fail");
        
      } else {
        
        Serial.print("empty");
        
      }
        
    }
    
  #endif 

  int numberOfDevices; // Number of temperature devices found

  DeviceAddress tempDeviceAddress; // We'll use this variable to store a found device address    
  
  // For testing purposes, reset the bus every loop so we can see if any devices appear or fall off
  sensors.begin();

  // Grab a count of devices on the wire
  numberOfDevices = sensors.getDeviceCount();

  Serial.print(" Parasite:"); 
  if (sensors.isParasitePowerMode()) Serial.print("ON ");
  else Serial.print("OFF ");
    
  Serial.print("Count:");
  Serial.print(numberOfDevices, DEC);
 // report parasite power requirements

  sensors.requestTemperatures(); // Send the command to get temperatures
  
  // Loop through each device, print out temperature data
  for(int i=0;i<numberOfDevices; i++)
  {
    // Search the wire for address
    if(sensors.getAddress(tempDeviceAddress, i))
	{
		// Output the device ID
		Serial.print(" #");
		Serial.print(i,DEC);
		Serial.print("=");


                float tempC = sensors.getTempC(tempDeviceAddress);

                Serial.print(DallasTemperature::toFahrenheit(tempC)); // Converts tempC to Fahrenheit

                if (DallasTemperature::toFahrenheit(tempC) > 76.00) {
                  if (powerOn) {
                    digitalWrite(powerPin, HIGH);
                    Serial.println("\nPOWER OFF");
                    powerOn = false;
                  }
                }
                else {
                  if (!powerOn) {
                    digitalWrite(powerPin, LOW);
                    Serial.println("\nPOWER ON");
                    powerOn = true;
                  }
                }

	} 
	//else ghost device! Check your power requirements and cabling
	
  }
  
 Serial.println("");
  
 delay(1000);
}

void togglePower() {
  if (powerOn) {
    Serial.println("Power off, turning on...");
    digitalWrite(powerPin, LOW);
  } else {
    Serial.println("Power on, turning off...");
    digitalWrite(powerPin, HIGH);
  }
}


// function to print a device address
void printAddress(DeviceAddress deviceAddress)
{
  for (uint8_t i = 0; i < 8; i++)
  {
    if (deviceAddress[i] < 16) Serial.print("0");
    Serial.print(deviceAddress[i], HEX);
  }
}