Stirling_engine_tests

#include <UTFTGLUE.h>              //use GLUE class and constructor
UTFTGLUE myGLCD(0, A2, A1, A3, A4, A0); //all dummy args

float rev; // Revolution Count
float measureTime = 0;
int ThermistorPin1 = 15;
int ThermistorPin2 = 14;
int Vo;
float R1 = 10000;
float logR2, R2, T1, T2, Tc1, Tf1, Tc2, Tf2;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
float rpm = 0;


void setup() {
  Serial.begin(115200);
  pinMode(2, INPUT); // Interrupt 0
  Serial.print("***TACHOMETER***");
  delay(500);
  // Setup the LCD
  myGLCD.InitLCD(3);
  myGLCD.clrScr();
  myGLCD.setColor(255, 255, 255);
  myGLCD.setBackColor(0, 0, 0);
  print_lcd_startup();
  attachInterrupt(2, addRevolution, FALLING);
}
void addRevolution() {
  rev++;
}

void loop() {
  delay(1000);
  //noInterrupts();
  if (millis() - measureTime > 1000){
    rpm = (rev / 12) * 60;
    rev = 0;
    measureTime = millis();
  }
  //rpm = rev * 7500 / (millis() - measureTime);
  //rev = 0;
  //measureTime = millis();
  read_temp();
  print_lcd();
  Serial.println(rpm);
  //interrupts();
}

void read_temp() {
  Vo = analogRead(ThermistorPin1);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
  logR2 = log(R2);
  T1 = (1.0 / (c1 + c2 * logR2 + c3 * logR2 * logR2 * logR2));
  Tc1 = T1 - 273.15;
  Tf1 = (Tc1 * 9.0) / 5.0 + 32.0;
  Vo = analogRead(ThermistorPin2);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
  logR2 = log(R2);
  T2 = (1.0 / (c1 + c2 * logR2 + c3 * logR2 * logR2 * logR2));
  Tc2 = T2 - 273.15;
  Tf2 = (Tc2 * 9.0) / 5.0 + 32.0;

  Serial.print("Temperature: ");
  Serial.print(Tf1);
  Serial.print(" F; ");
  Serial.print(Tc1);
  Serial.println(" C");
}

void print_lcd() {
  myGLCD.setFont(BigFont);
  if (Tc1 < 25) {
    myGLCD.setColor(0, 255, 255);
    myGLCD.print("      ", 30, 160);
    myGLCD.printNumI(Tc1, 30, 160);
    myGLCD.print("C", 90, 160);
  } else if (Tc1 > 24 && Tc1 < 100) {
    myGLCD.setColor(255, 255, 0);
    myGLCD.print("      ", 30, 160);
    myGLCD.printNumI(Tc1, 30, 160);
    myGLCD.print("C", 90, 160);
  } else if (Tc1 > 99) {
    myGLCD.setColor(255, 0, 0);
    myGLCD.print("      ", 30, 160);
    myGLCD.printNumI(Tc1, 30, 160);
    myGLCD.print("C", 90, 160);
  }

  myGLCD.setColor(255, 255, 255);
  myGLCD.print("        ", 210, 50);
  myGLCD.printNumI(rpm, 210, 50);
  myGLCD.print("        ", 220, 160);
  myGLCD.printNumI(Tc2, 220, 160);
  myGLCD.print("C", 280, 160);
}

void print_lcd_startup() {
  myGLCD.setFont(BigFont);
  myGLCD.setColor(0, 128, 0);
  myGLCD.print("Stirling Engine", 40, 0);
  myGLCD.print("Experiments", 70, 20);
  myGLCD.setColor(255, 255, 255);
  myGLCD.print("RPM: ", 80, 50);
  myGLCD.print("Temperatures", 60, 100);
  myGLCD.print(" Engine     Ambient", 0, 130);
}