Nixie Clock Code

#include <Event.h>
#include <Timer.h>

Timer t;

// multiplier for time delay, to adjust
int timeModifierNumerator = 1;
int timeModifierDenominator = 1;
// how often to count each minute
int clockTick = 1000*timeModifierNumerator*60/timeModifierDenominator;
// 24 or 12 hour time
int timeType = 12;
int started = 0;

// number for each tube + starting value for time setting
int tubeA = 0;
int tubeB = 0;
int tubeC = 0;
int tubeD = 0;

//pin names!
// tens of hours, 0-2
int oneA = 13;
int twoA = 12;
// units of hours, 0-9
int oneB = 11;
int twoB = 10;
int fourB = 9;
int eightB = 8;
//tens of minutes, 0-6
int oneC = 7;
int twoC = 6;
int fourC = 5;
//units of minutes, 0-9
int oneD = 4;
int twoD = 3;
int fourD = 2;
int eightD = 1;


// setup, output all the things!
void setup(){
 Serial.begin(9600);
 Serial.print("Feed_Started");
 Serial.print('\n');
  pinMode(oneA, OUTPUT);
  pinMode(twoA, OUTPUT);
  pinMode(oneB, OUTPUT);
  pinMode(twoB, OUTPUT);
  pinMode(fourB, OUTPUT);
  pinMode(eightB, OUTPUT);
  pinMode(oneC, OUTPUT);
  pinMode(twoC, OUTPUT);
  pinMode(fourC, OUTPUT);
  pinMode(oneD, OUTPUT);
  pinMode(twoD, OUTPUT);
  pinMode(fourD, OUTPUT);
  pinMode(eightD, OUTPUT);

// call count according to timer
t.every(clockTick, count);

}

void loop (){
//update timer
t.update();

}

// public loop for generating time
void count(){
Serial.print("minute Counted");
Serial.print('\n');
  // increment minutes
  if (tubeD < 9) {
    tubeD = tubeD+1;
  }
  // increment tens of minutes
  else if (tubeD = 9, tubeC < 5){
    tubeD = 0;
    tubeC = tubeC+1;
  }
  // increment hours

  // increment hours for first 9 hours
  else if (tubeD = 9, tubeC = 5, tubeB < 9, tubeA = 0){
    tubeD = 0;
    tubeC = 0;
    tubeB = tubeB +1;
  }
  // increment hours for 12 hour time from 10-12
  else if (tubeD =9, tubeC = 5, tubeA = 1, timeType = 12, tubeB < 2){
    tubeD = 0;
    tubeC = 0;
    tubeB = tubeB + 1;
  }
  // increment hours 10-19 if 24 hour time
  else if (tubeD =9, tubeC = 5, tubeA = 1, timeType = 24, tubeB < 9){
    tubeD = 0;
    tubeC = 0;
    tubeB = tubeB + 1;
  }
  // increment hours 20-24
  else if (tubeD =9, tubeC = 5, tubeA = 2, timeType = 24, tubeB < 4){
    tubeD = 0;
    tubeC = 0;
    tubeB = tubeB + 1;
  }

  // increment tens of hours from 0
  else if (tubeD = 9, tubeC = 5, tubeB = 9, tubeA =0) {
    tubeD = 0;
    tubeC = 0;
    tubeB = 0;
    tubeA = 1;
  }
  // reset clock to 01:00 if twelve hour time
  else if (tubeD = 9, tubeC = 5, tubeB = 2, tubeA =1, timeType = 12) {
    tubeD = 0;
    tubeC = 0;
    tubeB = 1;
    tubeA = 0;
  }
  // increment tens of hours if twenty-four hour time
  else if (tubeD = 9, tubeC = 5, tubeB = 9, tubeA = 1, timeType = 24) {
    tubeD = 0;
    tubeC = 0;
    tubeB = 0;
    tubeA = 2;
  }
  // reset clock to 01:00 if twenty-four hour time
  else if (tubeD = 9, tubeC = 5, tubeB = 4, tubeA = 2) {
    tubeD = 1;
    tubeC = 0;
    tubeB = 0;
    tubeA = 0;
  }
  // cry moment
  else {
  Serial.print("something is broken");
  }

  //update time on tubes
  displayA();
  displayB();
  displayC();
  displayD();
  // print current time on tubes for debugging
  Serial.print('\n');
  Serial.print(tubeA);
  Serial.print(tubeB);
  Serial.print(tubeC);
  Serial.print(tubeD);
  Serial.print('\n');
}
// outputs to driver for tube A
void displayA() {


	if (tubeA = 0) {
	 Serial.print("A0");
  digitalWrite(oneA, LOW);
  digitalWrite(twoA, LOW);
}
else if (tubeA = 1) {
 Serial.print("A1");
  digitalWrite(oneA, HIGH);
  digitalWrite(twoA, LOW);
}
else if (tubeA = 2) {
 Serial.print("A2");
  digitalWrite(oneA, LOW);
  digitalWrite(twoA, HIGH);
}

}

// outputs to driver for tube B
void displayB() {


  if (tubeB = 0) {
   Serial.print("B0");
  digitalWrite(oneB, LOW);
  digitalWrite(twoB, LOW);
  digitalWrite(fourB, LOW);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 1) {
  Serial.print("B1");
  digitalWrite(oneB, HIGH);
  digitalWrite(twoB, LOW);
  digitalWrite(fourB, LOW);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 2) {
  Serial.print("B2");
  digitalWrite(oneB, LOW);
  digitalWrite(twoB, HIGH);
  digitalWrite(fourB, LOW);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 3) {
  Serial.print("B3");
  digitalWrite(oneB, HIGH);
  digitalWrite(twoB, HIGH);
  digitalWrite(fourB, LOW);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 4) {
  Serial.print("B4");
  digitalWrite(oneB, LOW);
  digitalWrite(twoB, LOW);
  digitalWrite(fourB, HIGH);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 5) {
  Serial.print("B5");
  digitalWrite(oneB, HIGH);
  digitalWrite(twoB, LOW);
  digitalWrite(fourB, HIGH);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 6) {
  Serial.print("B6");
  digitalWrite(oneB, LOW);
  digitalWrite(twoB, HIGH);
  digitalWrite(fourB, HIGH);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 7) {
  Serial.print("B7");
  digitalWrite(oneB, HIGH);
  digitalWrite(twoB, HIGH);
  digitalWrite(fourB, HIGH);
  digitalWrite(eightB, LOW);
}
 else if (tubeB = 8) {
  Serial.print("B8");
  digitalWrite(oneB, LOW);
  digitalWrite(twoB, LOW);
  digitalWrite(fourB, LOW);
  digitalWrite(eightB, HIGH);
}
 else if(tubeB = 9) {
  Serial.print("B9");
  digitalWrite(oneB, HIGH);
  digitalWrite(twoB, LOW);
  digitalWrite(fourB, LOW);
  digitalWrite(eightB, HIGH);
}

}

// output to C
void displayC(){
   if (tubeC = 0) {
    Serial.print("C0");
  digitalWrite(oneC, LOW);
  digitalWrite(twoC, LOW);
  digitalWrite(fourC, LOW);
}
  else if (tubeC = 1) {
   Serial.print("C1");
  digitalWrite(oneC, HIGH);
  digitalWrite(twoC, LOW);
  digitalWrite(fourC, LOW);
}
  else if (tubeC = 2) {
   Serial.print("C2");
  digitalWrite(oneC, LOW);
  digitalWrite(twoC, HIGH);
  digitalWrite(fourC, LOW);
}
  else if (tubeC = 3) {
   Serial.print("C3");
  digitalWrite(oneC, HIGH);
  digitalWrite(twoC, HIGH);
  digitalWrite(fourC, LOW);
}
  else if (tubeC = 4) {
   Serial.print("C4");
  digitalWrite(oneC, LOW);
  digitalWrite(twoC, LOW);
  digitalWrite(fourC, HIGH);
}
  else if (tubeC = 5) {
   Serial.print("C5");
  digitalWrite(oneC, HIGH);
  digitalWrite(twoC, LOW);
  digitalWrite(fourC, HIGH);
}

}
// output to D
 void displayD() {
  if (tubeD = 0) {
   Serial.print("D0");
  digitalWrite(oneD, LOW);
  digitalWrite(twoD, LOW);
  digitalWrite(fourD, LOW);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 1) {
  Serial.print("D1");
  digitalWrite(oneD, HIGH);
  digitalWrite(twoD, LOW);
  digitalWrite(fourD, LOW);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 2) {
  Serial.print("D2");
  digitalWrite(oneD, LOW);
  digitalWrite(twoD, HIGH);
  digitalWrite(fourD, LOW);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 3) {
  Serial.print("D3");
  digitalWrite(oneD, HIGH);
  digitalWrite(twoD, HIGH);
  digitalWrite(fourD, LOW);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 4) {
  Serial.print("D4");
  digitalWrite(oneD, LOW);
  digitalWrite(twoD, LOW);
  digitalWrite(fourD, HIGH);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 5) {
  Serial.print("D5");
  digitalWrite(oneD, HIGH);
  digitalWrite(twoD, LOW);
  digitalWrite(fourD, HIGH);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 6) {
  Serial.print("D6");
  digitalWrite(oneD, LOW);
  digitalWrite(twoD, HIGH);
  digitalWrite(fourD, HIGH);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 7) {
  Serial.print("D7");
  digitalWrite(oneD, HIGH);
  digitalWrite(twoD, HIGH);
  digitalWrite(fourD, HIGH);
  digitalWrite(eightD, LOW);
}
 else if (tubeD = 8) {
  Serial.print("D8");
  digitalWrite(oneD, LOW);
  digitalWrite(twoD, LOW);
  digitalWrite(fourD, LOW);
  digitalWrite(eightD, HIGH);
}
 else if (tubeD = 9) {
 Serial.print("D9");
  digitalWrite(oneD, HIGH);
  digitalWrite(twoD, LOW);
  digitalWrite(fourD, LOW);
  digitalWrite(eightD, HIGH);
}
}