/**
   Arduino Electronic Safe

   Copyright (C) 2020, Uri Shaked.
   Released under the MIT License.
*/

#include <LiquidCrystal.h>

/* Locking mechanism definitions */
#define   BUTTONS          A7 
#define   FlowSensor_PIN   3
#define   A5_Val A5
#define   A4_Val A4
#define   A3_Val A3
#define   PumpA            10
#define   PumpB            6
#define   WaterPump        11
#define   WaterLevelPin    A2
#define   NutrientStir     A0
#define   OzonePump        A1
#define   LCD_Light        13

int iVoltageA5 = 0;
int iVoltageA4 = 0;
int iVoltageA3 = 0;

//////////////////////
/// BUTTONS & MENU ///
//////////////////////
  
// B1, B2, B3, B4//
// byte bSet = 0;
// byte bUp = 511;
// byte bDown = 683;
// byte bEnter = 773;

const byte bMainMenu = 7;
const byte bSetMenu  = 11;

byte bSec = 1; //set the timer to count in seconds rather than 0.5 sec
byte bWait = 0;
byte bPauseMenu = 0;
byte bPauseEnter = 0;
int A7_VAL = 0; // BUTTON INPUT
int bMenuTimerMax = 300; //250ms       
int bMenuTimer = bMenuTimerMax;
int iMenuSelectMin = 1000;
int iMenuSelectMax = 8000;
int iMenuSelect = iMenuSelectMin;
int iMenuSelectStep = iMenuSelectMin;
int iDebounce = 300;
int iDebounceCnt = iDebounce;


//////////////////
// 1Khz Counter //
////////////////// 
byte i1Kmax = 2;
byte i1Kcnt = i1Kmax;

/////////////////////////////////
// Nutrient Controller Setting //
///////////////////////////////// 

byte bCnt = 0; 
int iWaterVolMax = 10;
int iWaterVolSetting[4] = {10, 20, 30, 40};

int iNutrient_to_Water = 4;
int iNutrient_Stir_Timer_Max = 10;
int iOzone_Timer_Max = 30;
String sPumpACalState5ml = "-";
String sPumpACalState25ml = "-";
String sPumpACalState50ml = "-";
String sPumpACalState100ml = "-";
String sPumpACalState200ml = "-";

long iPumpACalibrationTime5ml = 0;
long iPumpACalibrationTime25ml = 0;
long iPumpACalibrationTime50ml = 0;
long iPumpACalibrationTime100ml = 0;
long iPumpACalibrationTime200ml = 0;

String sPumpBCalState5ml = "-";
String sPumpBCalState25ml = "-";
String sPumpBCalState50ml = "-";
String sPumpBCalState100ml = "-";
String sPumpBCalState200ml = "-";

long iPumpBCalibrationTime5ml = 0;
long iPumpBCalibrationTime25ml = 0;
long iPumpBCalibrationTime50ml = 0;
long iPumpBCalibrationTime100ml = 0;
long iPumpBCalibrationTime200ml = 0;

String sFlowCalState1ltr = "-";
String sFlowCalState5ltr = "-";
String sFlowCalState10ltr = "-";
String sFlowCalState20ltr = "-";
String sFlowCalState40ltr = "-";

long iFlowCalibrationCnt1ltr = 0;
long iFlowCalibrationCnt5ltr = 0;
long iFlowCalibrationCnt10ltr = 0;
long iFlowCalibrationCnt20ltr = 0;
long iFlowCalibrationCnt40ltr = 0;

byte bWaterPump = 0;
byte bOff = 0;
byte bOn = 1;
byte bStandby = 3;
byte bActive = 3;
byte bPumpA = bOff;
byte bPumpB = bOff;

long FlowSensorCnt = 0;

byte WaterLevelTimerMax = 1; //Seconds 
byte WaterLevelTimer = WaterLevelTimerMax;
byte bWaterLevelState = 0;
byte bFull = 1;
byte bEmpty = 0;
byte bFilling = 3;

byte bWaterReservourState = bFull;
double dWaterVolume = 0;
double dWaterFlowRate = 0;
int iFillTimer = 0;

byte bNutrientStirMotor = bOff;
int iNutrient_Stir_Timer = 0;
byte bOzonePump = bOff;
int iOzone_Timer = 0;
int iNutrientPumpTime = 0;
byte bNutrientDoseA = bOff;
byte bNutrientDoseB = bOff;

////////////////////
// LCD Back Light //
//////////////////// 

byte bLCD_Backlight_State = bOn;
byte bLCD_Light_Timer_Max = 12;
byte bLCD_Light_Timer = bLCD_Light_Timer_Max;

///////////////
// pH Sensor //
/////////////// 



byte bpHDisplayUpdate = 1;

int iPrevMenuSelect = 0;

int iBasePumpTimerCnt = 0;
int iBasePumpTimer = 3;
int iAcidPumpTimerCnt = 0;
int iAcidPumpTimer = 3;
byte bBasePumpPower = 200;
byte bAcidPumpPower = 200;
byte bBasePumpState = 3;
byte bAcidPumpState = 3;
int iPumpWaitTimerMax = 60; //Wait 60 minutes before enabling the base pump
int iBasePumpWaitTimer = iPumpWaitTimerMax * 60; 
int iAcidPumpWaitTimer = iPumpWaitTimerMax * 60; 
int iPrevMenu = 0;
byte bPumpMenuCnt = 200; 

/* Display */
const int rs = 12, en = 8, d4 = 7, d5 = 4, d6 = 9, d7 = 5;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7); 


void setup() {
  attachInterrupt(digitalPinToInterrupt(FlowSensor_PIN), FlowSensorDetect, FALLING);
 
  //LCD

  lcd.begin(16, 2);
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("* Hydroponics *");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("* Menu System *");  
  pinMode(PumpA, OUTPUT);
  pinMode(PumpB, OUTPUT);
  pinMode(WaterPump, OUTPUT);
  pinMode(NutrientStir, OUTPUT);
  pinMode(OzonePump, OUTPUT);
  pinMode(LCD_Light, OUTPUT);


  cli();//stop interrupts
  //set timer0 interrupt at 2kHz
    TCCR0A = 0;// set entire TCCR0A register to 0
  TCCR0B = 0;// same for TCCR0B
  TCNT0  = 0;//initialize counter value to 0
  // set compare match register for 2khz increments
  OCR0A = 124;// = (16*10^6) / (2000*64) - 1 (must be <256)
  // turn on CTC mode
  TCCR0A |= (1 << WGM01);
  // Set CS01 and CS00 bits for 64 prescaler
  TCCR0B |= (1 << CS01) | (1 << CS00);   
  // enable timer compare interrupt
  TIMSK0 |= (1 << OCIE0A);

  //set timer1 interrupt at 1Hz
    TCCR1A = 0;// set entire TCCR1A register to 0
    TCCR1B = 0;// same for TCCR1B
    TCNT1  = 0;//initialize counter value to 0
    // set compare match register for 1hz increments
    OCR1A = 15624;// = (16*10^6) / (1*1024) - 1 (must be <65536)
    // turn on CTC mode
    TCCR1B |= (1 << WGM12);
    // Set CS12 and CS10 bits for 1024 prescaler
    TCCR1B |= (1 << CS12) | (1 << CS10);  
    // enable timer compare interrupt
    TIMSK1 |= (1 << OCIE1A);
  
  //set timer2 interrupt at 8kHz
  //  TCCR2A = 0;// set entire TCCR2A register to 0
  //  TCCR2B = 0;// same for TCCR2B
  //  TCNT2  = 0;//initialize counter value to 0
  //  // set compare match register for 8khz increments
  //  OCR2A = 249;// = (16*10^6) / (8000*8) - 1 (must be <256)
  //  // turn on CTC mode
  //  TCCR2A |= (1 << WGM21);
  //  // Set CS21 bit for 8 prescaler
  //  TCCR2B |= (1 << CS21);   
  //  // enable timer compare interrupt
  //  TIMSK2 |= (1 << OCIE2A);
  sei();//allow interrupts 
 
}

void loop() {
  
 if (bMenuTimer==0) {
   pMenu();   
 }
if ((bLCD_Backlight_State == bOn) && (bLCD_Light_Timer > 0))  {
      bLCD_Backlight_State = bStandby;
      digitalWrite(LCD_Light, HIGH);
}
if ((bLCD_Backlight_State == bStandby) && (bLCD_Light_Timer == 0))  {
      bLCD_Backlight_State = bOff;
      digitalWrite(LCD_Light, LOW);
}


if (bPumpA==bOn) {
  digitalWrite(PumpA, HIGH); //ON
  bPumpA = bStandby;
 }
 if (bPumpA==bOff) {
  digitalWrite(PumpA, LOW); //OFF
  bPumpA = bStandby;
 }
 if (bPumpB==bOn) {
  digitalWrite(PumpB, HIGH); //ON
  bPumpB = bStandby;
 }
 if (bPumpB==bOff) {
  digitalWrite(PumpB, LOW); //OFF
  bPumpB = bStandby;
 }
 if (bWaterPump==bOff) {
  digitalWrite(WaterPump, LOW); //OFF
  bWaterPump = bStandby;
 }
 if (bWaterPump==bOn) {
  digitalWrite(WaterPump, HIGH); //ON
  bWaterPump = bStandby;
 }
 if (WaterLevelTimer==0) {
    WaterLevelTimer = WaterLevelTimerMax;
    bWaterLevelState = analogRead(WaterLevelPin);
 }
  if ((bWaterLevelState > 200) && (bWaterReservourState == bFull)) {
      bWaterPump=bOn;
      bNutrientStirMotor = bOn;
      dWaterVolume = 0;
      dWaterFlowRate = 0;
      FlowSensorCnt = 0;
      iMenuSelect = 0;
      bWaterReservourState = bFilling;
  }
  else if ((bWaterReservourState == bFilling) && (dWaterVolume <= iWaterVolMax)) {
      pWaterReservourFill();
  }
  else if ((bWaterReservourState == bFilling) && (dWaterVolume >= iWaterVolMax)) {
      bWaterPump=bOff;
      iMenuSelect = 1000;
      bWaterReservourState = bFull;
      bOzonePump = bOn;
  }

  if (bNutrientStirMotor == bOn) {
      iNutrient_Stir_Timer = 0;
      digitalWrite(NutrientStir, HIGH); //ON
      bNutrientStirMotor = bActive;
  }
  else if ((bNutrientStirMotor == bActive) && (iNutrient_Stir_Timer >= iNutrient_Stir_Timer_Max)) {
      digitalWrite(NutrientStir, LOW); //OFF
      bNutrientStirMotor = bOff;
      bNutrientDoseA = bOn;
    }

  if (bOzonePump == bOn) {
      iOzone_Timer = 0;
      digitalWrite(OzonePump, HIGH); //ON
      bOzonePump = bActive;
  }
  else if ((bOzonePump == bActive) && (iOzone_Timer >= iOzone_Timer_Max)) {
      digitalWrite(OzonePump, LOW); //OFF
      bOzonePump = bOff;
    }
  if (bNutrientDoseA == bOn) {
     bPumpA = bOn;
     bNutrientDoseA = bActive;
     iNutrientPumpTime = 0;
   }
  if ((bNutrientDoseA == bActive) && (iNutrientPumpTime >= iPumpACalibrationTime50ml)) {
     bPumpA = bOff;
     bNutrientDoseA = bOff;
     bNutrientDoseB = bOn;
   }
  if (bNutrientDoseB == bOn) {
     bPumpB = bOn;
     bNutrientDoseB = bActive;
     iNutrientPumpTime = 0;
   }
  if ((bNutrientDoseB == bActive) && (iNutrientPumpTime >= iPumpBCalibrationTime50ml)) {
     bPumpB = bOff;
     bNutrientDoseB = bOff;
   }
 
}




void pWaterReservourFill() {
    dWaterVolume = dWaterVolume + FlowSensorCnt * 0.0005;
    dWaterFlowRate = dWaterVolume / (iFillTimer);
    lcd.setCursor ( 0, 0 );
    lcd.print("Filling:"+String(dWaterVolume)+"      ");  
    lcd.setCursor ( 0, 1 );
    lcd.print("Flow Rate:"+String(FlowSensorCnt * 0.5)+"      ");
}



void pMenu(){
  bMenuTimer = bMenuTimerMax;
  //A7_VAL = analogRead(BUTTONS);

  iVoltageA5 = analogRead(A5_Val);
  iVoltageA4 = analogRead(A4_Val);
  iVoltageA3 = analogRead(A3_Val);
  A7_VAL = 1024;
  if (iVoltageA5 == 0) {
    A7_VAL = 683;
  }
  if (iVoltageA4 == 0) {
    A7_VAL = 511;
  }
  if (iVoltageA3 == 0) {
    A7_VAL = 10;
  }

  //Serial.println(A7_VAL);
// byte bUp = 511;
// byte bDown = 683;
// byte bEnter = 773;
  if (A7_VAL < 1000) {
    bLCD_Backlight_State = bOn;
    bLCD_Light_Timer = bLCD_Light_Timer_Max;
  }

  //MENU NAVIGATION
  if ((A7_VAL > 500) && (A7_VAL < 550) && (iMenuSelect < iMenuSelectMax) && (bPauseMenu == 0 && iDebounceCnt == 0)) {  //DOWN
    iMenuSelect = iMenuSelect + iMenuSelectStep;  
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
    iDebounceCnt = iDebounce;
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730) && (iMenuSelect > iMenuSelectMin) && bPauseMenu == 0 && iDebounceCnt == 0) {  //UP
    iMenuSelect = iMenuSelect - iMenuSelectStep;  
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
    iDebounceCnt = iDebounce;
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50) && (bPauseEnter == 0) && bPauseMenu == 0 && iDebounceCnt == 0) {  //ENTER
    iMenuSelectStep = iMenuSelectStep / 10;
    iMenuSelect = iMenuSelect + iMenuSelectStep;
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
    iDebounceCnt = iDebounce;
  }

    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep)+", PauseMenu:"+String(bPauseMenu) );
  
  if (iMenuSelect == 1000) {
    pMainMenu1000();   
  }
  if ((iMenuSelect == 2000) && (bpHDisplayUpdate==0)) { //Display Current pH
    pMainMenu2000();   
  }
  if (iMenuSelect == 2100) {
     pMainMenu2100();
     //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }   
  if (iMenuSelect == 2110) {
     //pMainMenu2110();
     //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }   
  if (iMenuSelect == 3000) {
    pMainMenu3000();   
  }
  if (iMenuSelect == 3100) {
    pMainMenu3100();   
  }
  if (iMenuSelect == 4000) {  // Base Pump
    pMainMenu4000();   
  }
  if (iMenuSelect == 4100) {  // Base Pump
    pMainMenu4100();   
  }
  if (iMenuSelect == 5000) {   //Acid Pump
    pMainMenu5000();   
  }
  if (iMenuSelect == 5100) {   //Acid Pump
    pMainMenu5100();   
  }
  if (iMenuSelect == 6000) {   //Prime Base Line
    pMainMenu6000();   
  }
  if (iMenuSelect == 6100) {   //Prime Base Line
    pMainMenu6100();   
  }
  if (iMenuSelect == 6110) {   //Prime Base Line
    pMainMenu6110();   
  }
  if (iMenuSelect == 6111) {   //Prime Base Line
    pMainMenu6111();   
  }
  if (iMenuSelect == 6200) {   //Prime Base Line
    pMainMenu6200();   
  }
  if (iMenuSelect == 6210) {   //Prime Base Line
    pMainMenu6210();   
  }
  if (iMenuSelect == 6211) {   //Prime Base Line
    pMainMenu6211();   
  }
  if (iMenuSelect == 6300) {   //Prime Base Line
    pMainMenu6300();   
  }
  if (iMenuSelect == 6310) {   //Prime Base Line
    pMainMenu6310();   
  }
  if (iMenuSelect == 6311) {   //Prime Base Line
    pMainMenu6311();   
  }
  if (iMenuSelect == 6400) {   //Prime Base Line
    pMainMenu6400();   
  }
  if (iMenuSelect == 6410) {   //Prime Base Line
    pMainMenu6410();   
  }
  if (iMenuSelect == 6411) {   //Prime Base Line
    pMainMenu6411();   
  }
  if (iMenuSelect == 6500) {   //Prime Base Line
    pMainMenu6500();   
  }
  if (iMenuSelect == 6510) {   //Prime Base Line
    pMainMenu6510();   
  }
  if (iMenuSelect == 6511) {   //Prime Base Line
    pMainMenu6511();   
  }
    if (iMenuSelect == 6600) {   //Prime Base Line
    pMainMenu6600();   
  }
  if (iMenuSelect == 6610) {   //Prime Base Line
    pMainMenu6610();   
  }
  if (iMenuSelect == 6611) {   //Prime Base Line
    pMainMenu6611();   
  }

  if (iMenuSelect == 6700) {   //Prime Base Line
    pMainMenu6700();   
  }
  if (iMenuSelect == 6710) {   //Prime Base Line
    pMainMenu6710();   
  }

  if (iMenuSelect == 7000) {   //Prime Base Line
    pMainMenu7000();   
  }
  if (iMenuSelect == 7100) {   //Prime Base Line
    pMainMenu7100();   
  }
  if (iMenuSelect == 7110) {   //Prime Base Line
    pMainMenu7110();   
  }
  if (iMenuSelect == 7111) {   //Prime Base Line
    pMainMenu7111();   
  }
  if (iMenuSelect == 7200) {   //Prime Base Line
    pMainMenu7200();   
  }
  if (iMenuSelect == 7210) {   //Prime Base Line
    pMainMenu7210();   
  }
  if (iMenuSelect == 7211) {   //Prime Base Line
    pMainMenu7211();   
  }
  if (iMenuSelect == 7300) {   //Prime Base Line
    pMainMenu7300();   
  }
  if (iMenuSelect == 7310) {   //Prime Base Line
    pMainMenu7310();   
  }
  if (iMenuSelect == 7311) {   //Prime Base Line
    pMainMenu7311();   
  }
  if (iMenuSelect == 7400) {   //Prime Base Line
    pMainMenu7400();   
  }
  if (iMenuSelect == 7410) {   //Prime Base Line
    pMainMenu7410();   
  }
  if (iMenuSelect == 7411) {   //Prime Base Line
    pMainMenu7411();   
  }
  if (iMenuSelect == 7500) {   //Prime Base Line
    pMainMenu7500();   
  }
  if (iMenuSelect == 7510) {   //Prime Base Line
    pMainMenu7510();   
  }
  if (iMenuSelect == 7511) {   //Prime Base Line
    pMainMenu7511();   
  }
    if (iMenuSelect == 7600) {   //Prime Base Line
    pMainMenu7600();   
  }
  if (iMenuSelect == 7610) {   //Prime Base Line
    pMainMenu7610();   
  }
  if (iMenuSelect == 7611) {   //Prime Base Line
    pMainMenu7611();   
  }
    if (iMenuSelect == 7700) {   //Prime Base Line
    pMainMenu7700();   
  }
  if (iMenuSelect == 7710) {   //Prime Base Line
    pMainMenu7710();   
  }


  if (iMenuSelect == 8000) {   //Prime Base Line
    pMainMenu8000();   
  }
  if (iMenuSelect == 8100) {   //Prime Base Line
    pMainMenu8100();   
  }
  if (iMenuSelect == 8110) {   //Prime Base Line
    pMainMenu8110();   
  }
  if (iMenuSelect == 8111) {   //Prime Base Line
    pMainMenu8111();   
  }
  if (iMenuSelect == 8200) {   //Prime Base Line
    pMainMenu8200();   
  }
  if (iMenuSelect == 8210) {   //Prime Base Line
    pMainMenu8210();   
  }
  if (iMenuSelect == 8211) {   //Prime Base Line
    pMainMenu8211();   
  }
  if (iMenuSelect == 8300) {   //Prime Base Line
    pMainMenu8300();   
  }
  if (iMenuSelect == 8310) {   //Prime Base Line
    pMainMenu8310();   
  }
  if (iMenuSelect == 8311) {   //Prime Base Line
    pMainMenu8311();   
  }
  if (iMenuSelect == 8400) {   //Prime Base Line
    pMainMenu8400();   
  }
  if (iMenuSelect == 8410) {   //Prime Base Line
    pMainMenu8410();   
  }
  if (iMenuSelect == 8411) {   //Prime Base Line
    pMainMenu8411();   
  }
  if (iMenuSelect == 8500) {   //Prime Base Line
    pMainMenu8500();   
  }
  if (iMenuSelect == 8510) {   //Prime Base Line
    pMainMenu8510();   
  }
  if (iMenuSelect == 8511) {   //Prime Base Line
    pMainMenu8511();   
  }
    if (iMenuSelect == 8600) {   //Prime Base Line
    pMainMenu8600();   
  }
  if (iMenuSelect == 8610) {   //Prime Base Line
    pMainMenu8610();   
  }
  if (iMenuSelect == 8611) {   //Prime Base Line
    pMainMenu8611();   
  }

  if (iMenuSelect == 8700) {   //Prime Base Line
    pMainMenu8700();   
  }
  if (iMenuSelect == 8710) {   //Prime Base Line
    pMainMenu8710();   
  }
  iPrevMenuSelect = iMenuSelect;
   
}
 
void pMainMenu1000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Water Vol:"+String(iWaterVolMax)+" "+String(bWaterLevelState));  

  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Nutr Ratio:"+String(iNutrient_to_Water)+" ");  
  lcd.setCursor ( 12, 1 );        // go to the next line
  lcd.print("ml/l");  

  bpHDisplayUpdate = 1;
  //Serial.println("Current PH:"+String(dCurrentpH));
  iMenuSelectStep = 1000;

}  
void pMainMenu1100() {
  iMenuSelect = 1000;
  iMenuSelectStep = 1000;

}

void pMainMenu2000() {  // Set pH Limits
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Water Vol Limit  ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Vol:"+String(iWaterVolMax)+"          ");  
}  



void pMainMenu2100() {  // Set pH Limits
  if (bPauseMenu == 0) {
    bPauseMenu = 1;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Set Water Qty:  ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iWaterVolMax)+"              ");    
  }
  else {
  if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (bCnt > 0) {
      bCnt--; 
      iWaterVolMax = iWaterVolSetting[bCnt];
    }
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iWaterVolMax)+"            ");
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
    if (bCnt < 3) {
      bCnt++; 
      iWaterVolMax = iWaterVolSetting[bCnt];
    }
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iWaterVolMax)+"            ");
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50)) {  //ENTER
    iMenuSelectStep = 1000;
    iMenuSelect = 2000;
    iMenuSelectMin = 1000;
    iMenuSelectMax = 8000;
    bPauseMenu = 0;
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep)+", PauseMenu:"+String(bPauseMenu) );
  }
  }
}  

void pMainMenu3000() {  // Set pH Limits
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Nutrient Ratio  ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print(String(iNutrient_to_Water)+" ml/l          ");  
}  



void pMainMenu3100() {  // Set pH Limits
  if (bPauseMenu == 0) {
    bPauseMenu = 1;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Set Nutrient R:  ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iNutrient_to_Water)+"              ");    
  }
  else {
  if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (iNutrient_to_Water>0){
       iNutrient_to_Water = iNutrient_to_Water - 1;
    }
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iNutrient_to_Water)+"            ");
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
     iNutrient_to_Water = iNutrient_to_Water + 1;
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iNutrient_to_Water)+"            ");
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50)) {  //ENTER
    iMenuSelectStep = 1000;
    iMenuSelect = 3000;
    iMenuSelectMin = 1000;
    iMenuSelectMax = 8000;
    bPauseMenu = 0;
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep)+", PauseMenu:"+String(bPauseMenu) );
  }
  }
}  




void pMainMenu4000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Nutr Stir Timer    ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print(String(iNutrient_Stir_Timer_Max)+" Seconds      ");  
}  
void pMainMenu4100() {  // 
  if (bPauseMenu == 0) {
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Set Stir Timer:  ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("                ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iNutrient_Stir_Timer_Max);
    bPauseMenu = 1;
  }
  else if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (iNutrient_Stir_Timer_Max > 0) {
      iNutrient_Stir_Timer_Max = iNutrient_Stir_Timer_Max - 1;
    }  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("  ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iNutrient_Stir_Timer_Max);
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
    if (iNutrient_Stir_Timer_Max < 1000) {
      iNutrient_Stir_Timer_Max = iNutrient_Stir_Timer_Max + 1;
    }
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("  ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iNutrient_Stir_Timer_Max);
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50)) {  //ENTER
    iMenuSelectStep = 1000;
    iMenuSelect = 4000;
    iMenuSelectMin = 1000;
    iMenuSelectMax = 8000;
    bPauseMenu = 0;
  }
}  



void pMainMenu5000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Ozone Pump Timer");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print(String(iOzone_Timer_Max)+" minutes      ");  
}  
void pMainMenu5100() {  // 
  if (bPauseMenu == 0) {
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Ozone Timer:    ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("                ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iOzone_Timer_Max);
    bPauseMenu = 1;
  }
  else if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (iOzone_Timer_Max > 0) {
      iOzone_Timer_Max = iOzone_Timer_Max - 1;
    }  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("  ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iOzone_Timer_Max);
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
    if (iOzone_Timer_Max < 60) {
      iOzone_Timer_Max = iOzone_Timer_Max + 1;
    }
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("  ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iOzone_Timer_Max);
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50)) {  //ENTER
    iMenuSelectStep = 1000;
    iMenuSelect = 5000;
    iMenuSelectMin = 1000;
    iMenuSelectMax = 8000;
    bPauseMenu = 0;
  }  
}  

void pMainMenu6000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Calibrate Pump A");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("5,25,50,100,200");  
}  
void pMainMenu6100() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml "+sPumpACalState5ml+" "+String(iPumpACalibrationTime5ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
    

}  
void pMainMenu6110() {  // 
  iMenuSelectMin = 6110;
  iMenuSelectMax = 6110;
    if (sPumpBCalState5ml == "*") {
       iPumpBCalibrationTime5ml = 0;
       sPumpBCalState5ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml - "+String(iPumpACalibrationTime5ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpA = 1;  //ON
    iMenuSelect = 6110;
    iMenuSelectStep = 10;
}
void pMainMenu6111() {  // 
  iMenuSelectMin = 6111;
  iMenuSelectMax = 6111;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpACalState5ml = "*";
    bPumpA = 0;  //OFF
    iMenuSelect = 6100;
    iMenuSelectStep = 100;

}  
void pMainMenu6200() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml "+sPumpACalState25ml+" "+String(iPumpACalibrationTime25ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6210() {  // 
  iMenuSelectMin = 6210;
  iMenuSelectMax = 6210;
    if (sPumpACalState25ml == "*") {
       iPumpACalibrationTime25ml = 0;
       sPumpACalState25ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml - "+String(iPumpACalibrationTime25ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpA = 1;  //ON
    iMenuSelect = 6210;
    iMenuSelectStep = 10;
}
void pMainMenu6211() {  // 
  iMenuSelectMin = 6211;
  iMenuSelectMax = 6211;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpACalState25ml = "*";
    bPumpA = 0;  //OFF
    iMenuSelect = 6200;
    iMenuSelectStep = 100;

}  
void pMainMenu6300() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml "+sPumpACalState50ml+" "+String(iPumpACalibrationTime50ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6310() {  // 
  iMenuSelectMin = 6310;
  iMenuSelectMax = 6310;
    if (sPumpACalState50ml == "*") {
       iPumpACalibrationTime50ml = 0;
       sPumpACalState50ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml - "+String(iPumpACalibrationTime50ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpA = 1;  //ON
    iMenuSelect = 6310;
    iMenuSelectStep = 10;
}
void pMainMenu6311() {  // 
  iMenuSelectMin = 6311;
  iMenuSelectMax = 6311;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpACalState50ml = "*";
    bPumpA = 0;  //OFF
    iMenuSelect = 6300;
    iMenuSelectStep = 100;
}
void pMainMenu6400() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml "+sPumpACalState100ml+" "+String(iPumpACalibrationTime100ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6410() {  // 
  iMenuSelectMin = 6410;
  iMenuSelectMax = 6410;
    if (sPumpACalState100ml == "*") {
       iPumpACalibrationTime100ml = 0;
       sPumpACalState100ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml - "+String(iPumpACalibrationTime100ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpA = 1;  //ON
    iMenuSelect = 6410;
    iMenuSelectStep = 10;
}
void pMainMenu6411() {  // 
  iMenuSelectMin = 6411;
  iMenuSelectMax = 6411;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpACalState100ml = "*";
    bPumpA = 0;  //OFF
    iMenuSelect = 6400;
    iMenuSelectStep = 100;
}
void pMainMenu6500() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml "+sPumpACalState200ml+" "+String(iPumpACalibrationTime200ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6510() {  // 
  iMenuSelectMin = 6510;
  iMenuSelectMax = 6510;
    if (sPumpACalState200ml == "*") {
       iPumpACalibrationTime200ml = 0;
       sPumpACalState200ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml - "+String(iPumpACalibrationTime200ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpA = 1;  //ON
    iMenuSelect = 6510;
    iMenuSelectStep = 10;
}
void pMainMenu6511() {  // 
  iMenuSelectMin = 6511;
  iMenuSelectMax = 6511;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpACalState200ml = "*";
    bPumpA = 0;  //OFF
    iMenuSelect = 6500;
    iMenuSelectStep = 100;
}
void pMainMenu6600() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
      lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Calibrate Now   ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Press Enter    ");

}  
void pMainMenu6610() {  // 
  iMenuSelectMin = 6610;
  iMenuSelectMax = 6610;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Calibration Done");  
    lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Enter to Exit   ");
}
void pMainMenu6611() {  // 
    iMenuSelect = 6600;
    iMenuSelectStep = 100;
}
void pMainMenu6700() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Return To Main  ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Enter to Exit   ");
}  
void pMainMenu6710() {
  iMenuSelect = 6000;
  iMenuSelectStep = 1000;
  iMenuSelectMin = 1000; 
  iMenuSelectMax = 8000; 
} 

void pMainMenu7000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Calibrate Pump B");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("5,25,50,100,200");  
}  
void pMainMenu7100() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml "+sPumpBCalState5ml+" "+String(iPumpBCalibrationTime5ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
    

}  
void pMainMenu7110() {  // 
  iMenuSelectMin = 7110;
  iMenuSelectMax = 7110;
    if (sPumpBCalState5ml == "*") {
       iPumpBCalibrationTime5ml = 0;
       sPumpBCalState5ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml - "+String(iPumpBCalibrationTime5ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpB = 1;  //ON
    iMenuSelect = 7110;
    iMenuSelectStep = 10;
}
void pMainMenu7111() {  // 
  iMenuSelectMin = 7111;
  iMenuSelectMax = 7111;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpBCalState5ml = "*";
    bPumpB = 0;  //OFF
    iMenuSelect = 7100;
    iMenuSelectStep = 100;

}  
void pMainMenu7200() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml "+sPumpBCalState25ml+" "+String(iPumpBCalibrationTime25ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu7210() {  // 
  iMenuSelectMin = 7210;
  iMenuSelectMax = 7210;
    if (sPumpBCalState25ml == "*") {
       iPumpBCalibrationTime25ml = 0;
       sPumpBCalState25ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml - "+String(iPumpBCalibrationTime25ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpB = 1;  //ON
    iMenuSelect = 7210;
    iMenuSelectStep = 10;
}
void pMainMenu7211() {  // 
  iMenuSelectMin = 7211;
  iMenuSelectMax = 7211;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpBCalState25ml = "*";
    bPumpB = 0;  //OFF
    iMenuSelect = 7200;
    iMenuSelectStep = 100;

}  
void pMainMenu7300() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml "+sPumpBCalState50ml+" "+String(iPumpBCalibrationTime50ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu7310() {  // 
  iMenuSelectMin = 7310;
  iMenuSelectMax = 7310;
    if (sPumpBCalState50ml == "*") {
       iPumpBCalibrationTime50ml = 0;
       sPumpBCalState50ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml - "+String(iPumpBCalibrationTime50ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpB = 1;  //ON
    iMenuSelect = 7310;
    iMenuSelectStep = 10;
}
void pMainMenu7311() {  // 
  iMenuSelectMin = 7311;
  iMenuSelectMax = 7311;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpBCalState50ml = "*";
    bPumpB = 0;  //OFF
    iMenuSelect = 7300;
    iMenuSelectStep = 100;
}
void pMainMenu7400() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml "+sPumpBCalState100ml+" "+String(iPumpBCalibrationTime100ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu7410() {  // 
  iMenuSelectMin = 7410;
  iMenuSelectMax = 7410;
    if (sPumpBCalState100ml == "*") {
       iPumpBCalibrationTime100ml = 0;
       sPumpBCalState100ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml - "+String(iPumpBCalibrationTime100ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpB = 1;  //ON
    iMenuSelect = 7410;
    iMenuSelectStep = 10;
}
void pMainMenu7411() {  // 
  iMenuSelectMin = 7411;
  iMenuSelectMax = 7411;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpBCalState100ml = "*";
    bPumpB = 0;  //OFF
    iMenuSelect = 7400;
    iMenuSelectStep = 100;
}
void pMainMenu7500() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml "+sPumpBCalState200ml+" "+String(iPumpBCalibrationTime200ml)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu7510() {  // 
  iMenuSelectMin = 7510;
  iMenuSelectMax = 7510;
    if (sPumpBCalState200ml == "*") {
       iPumpBCalibrationTime200ml = 0;
       sPumpBCalState200ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml - "+String(iPumpBCalibrationTime200ml)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bPumpB = 1;  //ON
    iMenuSelect = 7510;
    iMenuSelectStep = 10;
}
void pMainMenu7511() {  // 
  iMenuSelectMin = 7511;
  iMenuSelectMax = 7511;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sPumpBCalState200ml = "*";
    bPumpB = 0;  //OFF
    iMenuSelect = 7500;
    iMenuSelectStep = 100;
}
void pMainMenu7600() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
      lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Calibrate Now   ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Press Enter    ");

}  
void pMainMenu7610() {  // 
  iMenuSelectMin = 7610;
  iMenuSelectMax = 7610;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Calibration Done");  
    lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Enter to Exit   ");
}
void pMainMenu7611() {  // 
    iMenuSelect = 7600;
    iMenuSelectStep = 100;
}
void pMainMenu7700() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Return To Main  ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Enter to Exit   ");
}  
void pMainMenu7710() {
  iMenuSelect = 7000;
  iMenuSelectStep = 1000;
  iMenuSelectMin = 1000; 
  iMenuSelectMax = 8000; 
} 

void pMainMenu8000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Calibrate Flow S");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("1,5,10,20,40    ");  
}  
void pMainMenu8100() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
  FlowSensorCnt = 0;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("1ltr "+sFlowCalState1ltr+" "+String(iFlowCalibrationCnt1ltr)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
}  
void pMainMenu8110() {  // 
  iMenuSelectMin = 8110;
  iMenuSelectMax = 8110;
    if (sFlowCalState1ltr == "*") {
       iFlowCalibrationCnt1ltr = 0;
       sFlowCalState1ltr = "-";
    }
    iFlowCalibrationCnt1ltr = FlowSensorCnt;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("1ltr - "+String(iFlowCalibrationCnt1ltr)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bWaterPump = 1; //ON
    iMenuSelect = 8110;
    iMenuSelectStep = 10;
}
void pMainMenu8111() {  // 
  iMenuSelectMin = 8111;
  iMenuSelectMax = 8111;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("1ltr ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sFlowCalState1ltr = "*";
    bWaterPump = 0; //OFF
    iMenuSelect = 8100;
    iMenuSelectStep = 100;

}  
void pMainMenu8200() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
  FlowSensorCnt = 0;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ltr "+sFlowCalState5ltr+" "+String(iFlowCalibrationCnt5ltr)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
}  
void pMainMenu8210() {  // 
  iMenuSelectMin = 8210;
  iMenuSelectMax = 8210;
    if (sFlowCalState5ltr == "*") {
       iFlowCalibrationCnt5ltr = 0;
       sFlowCalState5ltr = "-";
    }
    iFlowCalibrationCnt5ltr = FlowSensorCnt;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ltr - "+String(iFlowCalibrationCnt5ltr)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bWaterPump = bOn; //ON
    iMenuSelect = 8210;
    iMenuSelectStep = 10;
}
void pMainMenu8211() {  // 
  iMenuSelectMin = 8211;
  iMenuSelectMax = 8211;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ltr ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sFlowCalState5ltr = "*";
    bWaterPump = bOff; //OFF
    iMenuSelect = 8200;
    iMenuSelectStep = 100;

}  
void pMainMenu8300() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
  FlowSensorCnt = 0;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("10ltr "+sFlowCalState10ltr+" "+String(iFlowCalibrationCnt10ltr)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
}  
void pMainMenu8310() {  // 
  iMenuSelectMin = 8310;
  iMenuSelectMax = 8310;
    if (sFlowCalState10ltr == "*") {
       iFlowCalibrationCnt10ltr = 0;
       sFlowCalState10ltr = "-";
    }
    iFlowCalibrationCnt10ltr = FlowSensorCnt;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("10ltr - "+String(iFlowCalibrationCnt10ltr)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bWaterPump = 1; //ON
    iMenuSelect = 8310;
    iMenuSelectStep = 10;
}
void pMainMenu8311() {  // 
  iMenuSelectMin = 8311;
  iMenuSelectMax = 8311;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("10ltr ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sFlowCalState10ltr = "*";
    bWaterPump = 0; //OFF
    iMenuSelect = 8300;
    iMenuSelectStep = 100;

}  
void pMainMenu8400() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
  FlowSensorCnt = 0;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("20ltr "+sFlowCalState20ltr+" "+String(iFlowCalibrationCnt20ltr)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
}  
void pMainMenu8410() {  // 
  iMenuSelectMin = 8410;
  iMenuSelectMax = 8410;
    if (sFlowCalState20ltr == "*") {
       iFlowCalibrationCnt20ltr = 0;
       sFlowCalState20ltr = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    iFlowCalibrationCnt20ltr = FlowSensorCnt;
    lcd.print("20ltr - "+String(iFlowCalibrationCnt20ltr)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bWaterPump = 1; //ON
    iMenuSelect = 8410;
    iMenuSelectStep = 10;
}
void pMainMenu8411() {  // 
  iMenuSelectMin = 8411;
  iMenuSelectMax = 8411;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("20ltr ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sFlowCalState20ltr = "*";
    bWaterPump = 0; //OFF
    iMenuSelect = 8400;
    iMenuSelectStep = 100;
}  
void pMainMenu8500() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
  FlowSensorCnt = 0;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("40ltr "+sFlowCalState40ltr+" "+String(iFlowCalibrationCnt40ltr)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
}  
void pMainMenu8510() {  // 
  iMenuSelectMin = 8510;
  iMenuSelectMax = 8510;
    if (sFlowCalState40ltr == "*") {
       iFlowCalibrationCnt40ltr = 0;
       sFlowCalState40ltr = "-";
    }
    iFlowCalibrationCnt40ltr = FlowSensorCnt;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("40ltr - "+String(iFlowCalibrationCnt40ltr)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    bWaterPump = 1; //ON
    iMenuSelect = 8510;
    iMenuSelectStep = 10;
}
void pMainMenu8511() {  // 
  iMenuSelectMin = 8511;
  iMenuSelectMax = 8511;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("40ltr ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Done      ");
    sFlowCalState40ltr = "*";
    bWaterPump = 0; //OFF
    iMenuSelect = 8500;
    iMenuSelectStep = 100;
}  
void pMainMenu8600() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
      lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Calibrate Now   ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Press Enter    ");

}  
void pMainMenu8610() {  // 
  iMenuSelectMin = 8610;
  iMenuSelectMax = 8610;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Calibration Done");  
    lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Enter to Exit   ");
}
void pMainMenu8611() {  // 
    iMenuSelect = 8600;
    iMenuSelectStep = 100;
}
void pMainMenu8700() {  // 
  iMenuSelectMin = 8100;
  iMenuSelectMax = 8700;
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Return To Main  ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Enter to Exit   ");
}  
void pMainMenu8710() {
  iMenuSelect = 8000;
  iMenuSelectStep = 1000;
  iMenuSelectMin = 1000; 
  iMenuSelectMax = 8000; 
} 






ISR(TIMER0_COMPA_vect){//timer0 interrupt 2kHz toggles pin 8
//generates pulse wave of frequency 2kHz/2 = 1kHz (takes two cycles for full wave- toggle high then toggle low)

if (iDebounceCnt>0) {
  iDebounceCnt--;
}
i1Kcnt--;
if (i1Kcnt <= 0) { 
  if ((iMenuSelect > 6100) && (iMenuSelect < 7000)){
    if (iMenuSelect == 6110) {
    iPumpACalibrationTime5ml++;
    }
    if (iMenuSelect == 6210) {
    iPumpACalibrationTime25ml++;
    }
    if (iMenuSelect == 6310) {
    iPumpACalibrationTime50ml++;
    }
    if (iMenuSelect == 6410) {
    iPumpACalibrationTime100ml++;
    }
    if (iMenuSelect == 6510) {
    iPumpACalibrationTime200ml++;
    }
  }
  else if ((iMenuSelect > 7100) && (iMenuSelect < 8000)){
    if (iMenuSelect == 7110) {
    iPumpBCalibrationTime5ml++;
    }
    if (iMenuSelect == 7210) {
    iPumpBCalibrationTime25ml++;
    }
    if (iMenuSelect == 7310) {
    iPumpBCalibrationTime50ml++;
    }
    if (iMenuSelect == 7410) {
    iPumpBCalibrationTime100ml++;
    }
    if (iMenuSelect == 7510) {
    iPumpBCalibrationTime200ml++;
    }
  }
  if (bMenuTimer > 0) {
    bMenuTimer--;
  } 

  if (bWaterReservourState == bFilling){
    iFillTimer++;
  }

  if ((bNutrientDoseA == bActive) | (bNutrientDoseB == bActive)) {
      iNutrientPumpTime++;
  }
  i1Kcnt = i1Kmax;
}

}

ISR(TIMER1_COMPA_vect){//timer1 interrupt 1Hz toggles pin 13 (LED)
//generates pulse wave of frequency 1Hz/2 = 0.5Hz (takes two cycles for full wave- toggle high then toggle low)
if (bSec == 0) {     
 bSec = 1;
 if (bLCD_Light_Timer > 0) {
    bLCD_Light_Timer--;
 }
 if (bWait > 0) {
    bWait--;
 }
 if (bpHDisplayUpdate > 0){
  bpHDisplayUpdate--;
 }
 if(WaterLevelTimer > 0) {
  WaterLevelTimer--;
 }
}
else {
  bSec--;
}
 iNutrient_Stir_Timer++;
 iOzone_Timer++;
}

  
ISR(TIMER2_COMPA_vect){//timer1 interrupt 8kHz toggles pin 9
//generates pulse wave of frequency 8kHz/2 = 4kHz (takes two cycles for full wave- toggle high then toggle low)


}



void FlowSensorDetect() {
  FlowSensorCnt++;
}