The kegerator code so far

This is a work in progress:

/*

Kegerator Controller by Chuck McKenna

is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License

The circuit:

* LCD RS pin to digital pin 12

* LCD Enable pin to digital pin 11

* LCD D4 pin to digital pin 5

* LCD D5 pin to digital pin 4

* LCD D6 pin to digital pin 3

* LCD D7 pin to digital pin 2

* LCD pin 1 to ground

* LCD pin 2 to +5v

* LCD pin 3 to 4.7K ohm res to ground

* LM-34 Vout pin to Analog 0

* Button up to digital pin 7

* Button down to digital pin 8

*/

// include the library code:

#include

// initialize the library with the numbers of the interface pins

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

// set pin numbers:

const int buttonUpPin = 7; // the number of the Temp Up pin

const int buttonDnPin = 8; // the number of the Temp Down pin

const int tempPin = 0; // analog temp sensor pin

// variables:

int setTemp = 50; // variable storing the Set temp

int currTemp = 0; // variable storing the actual, current temp

int tempTemp = 0; // temporary temp

int buttonUpState = 0; // variable for reading the pushbutton status

int buttonDnState = 0; // variable for reading the pushbutton status

int tempIn = 0; // get temperature variable

void setup() {

// set up the LCD's number of rows and columns:

lcd.begin(16, 2);

// initialize the pushbutton pins as input:

pinMode(buttonUpPin, INPUT);

pinMode(buttonDnPin, INPUT);

lcd.setCursor(0, 0);

lcd.print(" Key Largo");

lcd.setCursor(0, 1);

lcd.print(" Brewery");

delay(2500);

lcd.setCursor(0, 1);

lcd.print(" ");

}

void loop() {

// Print header line of output

lcd.setCursor(0, 0);

lcd.print(" Current | Set ");

// set the cursor to column 0, line 1

// (note: line 1 is the second row, since counting begins with 0):

lcd.setCursor(3, 1);

lcd.print(currTemp);

lcd.print("F ");

lcd.setCursor(9, 1);

lcd.print("|");

lcd.setCursor(11, 1);

// Check buttons for set temp

buttonUpState = digitalRead(buttonUpPin);

if (buttonUpState == HIGH) {

// add 1 to setTemp

setTemp++;

delay(250);

}

buttonDnState = digitalRead(buttonDnPin);

if (buttonDnState == HIGH) {

// subtr 1 from setTemp

setTemp--;

delay(250);

}

lcd.print(setTemp);

lcd.print("F ");

//Get the temp

tempIn = analogRead(tempPin)/8.0;

currTemp = (tempIn * 9)/ 5 + 32; // converts to fahrenheit

tempTemp = setTemp-1;

//Psuedo Relay

if (tempTemp > currTemp) {

// turn off relays

lcd.setCursor(15, 1);

lcd.print("-");

}

if (setTemp <>

// turn on relays

lcd.setCursor(15, 1);

lcd.print("+");

}

}