/**
   Arduino Electronic Safe

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

#include <LiquidCrystal.h>

/* Locking mechanism definitions */
#define   BUTTONS          A7 
#define A5_Val A5
#define A4_Val A4
#define A3_Val A3
#define   PUMP_D5          5
#define   PUMP_D6          6
#define   PUMP_D9          9
#define   PUMP_D10         10
#define   PUMP_D11         11

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 = 250; //250ms       
int bMenuTimer = bMenuTimerMax;
int iMenuSelectMin = 1000;
int iMenuSelectMax = 8000;
int iMenuSelect = iMenuSelectMin;
int iMenuSelectStep = iMenuSelectMin;
int iDebounce = 100;
int iDebounceCnt = 0;
 
/////////////////////////////////
// Nutrient Controller Setting //
///////////////////////////////// 

int iWtrQty = 10;
int iNutrient_to_Water = 4;
int iNutrient_Stir_Timer = 60;
int iOzone_Timer = 30;
String sPumpCalState5ml = "-";
String sPumpCalState25ml = "-";
String sPumpCalState50ml = "-";
String sPumpCalState100ml = "-";
String sPumpCalState200ml = "-";

long iPumpCalibrationTime5ml = 0;
long iPumpCalibrationTime25ml = 0;
long iPumpCalibrationTime50ml = 0;
long iPumpCalibrationTime100ml = 0;
long iPumpCalibrationTime200ml = 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;

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

const int cCalibrateMenuMin = 1100; 
const int cCalibrateMenuMax = 1600; 

byte bMeasure4_0 = 0;
byte bMeasure6_8 = 0;
byte bMeasure8_0 = 0;
int ipHCalibrateCntMax = 100; //250ms 1000/4000
int ipHCalibrateCnt = ipHCalibrateCntMax;

long lpH_Calibration = 0;
double dpH_4_0 = 0;     
double dpH_6_8 = 0;     
double dpH_8_0 = 0;     
double dCoeffA = 0;
double dCoeffB = 0;
double dCurrentpH = 0;
double dpHLower = 5.0;
double dpHUpper = 8.0;
int ipH_CalibrationRaw = 0;     
int ipH_Points = 1000;     
int ipH_PointsCnt = 0;     

byte bCalibrateState = 0;
byte bpHDisplayUpdate = 1;

int iPrevMenuSelect = 0;

//DOSING
int ipHReadCntMax = 100; //250ms 1000/4000
int ipHReadCnt = ipHReadCntMax;

int ipH_TestPointsCnt = 0;
int ipHTestCnt = 3;
byte bMeasurepHState = 1;
int ipH_Raw = 0;
long lpH_Sum = 0;
double dpH_Test = 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 */
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
byte bBackLightTimer = 10; //seconds
byte bBackLight = bBackLightTimer;

void setup() {
  //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 *");  

  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();   
 }
 

}


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;

  //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) );
  }
  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) );
  }
  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) );
  }

    //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) {   //Dosing Delay
    pMainMenu8000();   
  }
  if (iMenuSelect == 8100) {   //Dosing Delay
    pMainMenu8100();   
  }
  iPrevMenuSelect = iMenuSelect;
   
}
 
void pMainMenu1000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Water Qty:"+String(iWtrQty)+"    ");  

  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Nut:Water:"+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 Qty Limit  ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Qty:"+String(iWtrQty)+"          ");  
}  



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(iWtrQty)+"              ");    
  }
  else {
  if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    iWtrQty = iWtrQty - 1;
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iWtrQty)+"            ");
    //Serial.println("Menu Select:"+String(iMenuSelect)+", MenuStep:"+String(iMenuSelectStep) );
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
     iWtrQty = iWtrQty + 1;
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(String(iWtrQty)+"            ");
    //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("Nut Stir Timer     ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print(String(iNutrient_Stir_Timer)+" Sec          ");  
}  
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);
    bPauseMenu = 1;
  }
  else if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (iNutrient_Stir_Timer > 0) {
      iNutrient_Stir_Timer = iNutrient_Stir_Timer - 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);
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
    if (iNutrient_Stir_Timer < 1000) {
      iNutrient_Stir_Timer = iNutrient_Stir_Timer + 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);
  }
  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)+" 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);
    bPauseMenu = 1;
  }
  else if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (iOzone_Timer > 0) {
      iOzone_Timer = iOzone_Timer - 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);
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
    if (iOzone_Timer < 60) {
      iOzone_Timer = iOzone_Timer + 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);
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50)) {  //ENTER
    iMenuSelectStep = 1000;
    iMenuSelect = 5000;
    iMenuSelectMin = 1000;
    iMenuSelectMax = 8000;
    bPauseMenu = 0;
  }  
}  

void pMainMenu6000() {
  iMenuSelectMin = 6000;
  iMenuSelectMax = 6700;
  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 "+sPumpCalState5ml+" "+String(iPumpCalibrationTime5ml/2)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");
    

}  
void pMainMenu6110() {  // 
  iMenuSelectMin = 6110;
  iMenuSelectMax = 6110;
    if (sPumpCalState5ml == "*") {
       iPumpCalibrationTime5ml = 0;
       sPumpCalState5ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("5ml - "+String(iPumpCalibrationTime5ml/2)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    digitalWrite(PUMP_D5, HIGH);  //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      ");
    sPumpCalState5ml = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 6100;
    iMenuSelectStep = 100;

}  
void pMainMenu6200() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml "+sPumpCalState25ml+" "+String(iPumpCalibrationTime25ml/2)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6210() {  // 
  iMenuSelectMin = 6210;
  iMenuSelectMax = 6210;
    if (sPumpCalState25ml == "*") {
       iPumpCalibrationTime25ml = 0;
       sPumpCalState25ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("25ml - "+String(iPumpCalibrationTime25ml/2)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    digitalWrite(PUMP_D5, HIGH);  //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      ");
    sPumpCalState25ml = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 6200;
    iMenuSelectStep = 100;

}  
void pMainMenu6300() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml "+sPumpCalState50ml+" "+String(iPumpCalibrationTime50ml/2)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6310() {  // 
  iMenuSelectMin = 6310;
  iMenuSelectMax = 6310;
    if (sPumpCalState50ml == "*") {
       iPumpCalibrationTime50ml = 0;
       sPumpCalState50ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("50ml - "+String(iPumpCalibrationTime50ml/2)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    digitalWrite(PUMP_D5, HIGH);  //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      ");
    sPumpCalState50ml = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 6300;
    iMenuSelectStep = 100;
}
void pMainMenu6400() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml "+sPumpCalState100ml+" "+String(iPumpCalibrationTime100ml/2)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6410() {  // 
  iMenuSelectMin = 6410;
  iMenuSelectMax = 6440;
    if (sPumpCalState100ml == "*") {
       iPumpCalibrationTime100ml = 0;
       sPumpCalState100ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("100ml - "+String(iPumpCalibrationTime100ml/2)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    digitalWrite(PUMP_D5, HIGH);  //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      ");
    sPumpCalState100ml = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 6400;
    iMenuSelectStep = 100;
}
void pMainMenu6500() {  // 
  iMenuSelectMin = 6100;
  iMenuSelectMax = 6700;
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml "+sPumpCalState200ml+" "+String(iPumpCalibrationTime200ml/2)+"          ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to start   ");

}  
void pMainMenu6510() {  // 
  iMenuSelectMin = 6510;
  iMenuSelectMax = 6510;
    if (sPumpCalState200ml == "*") {
       iPumpCalibrationTime200ml = 0;
       sPumpCalState200ml = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("200ml - "+String(iPumpCalibrationTime200ml/2)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    digitalWrite(PUMP_D5, HIGH);  //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      ");
    sPumpCalState200ml = "*";
    digitalWrite(PUMP_D5, LOW);  //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() {
  iMenuSelectMin = 6710;
  iMenuSelect = 6000;
  iMenuSelectStep = 1000;
  iMenuSelectMin = 1000; 
  iMenuSelectMax = 8000; 
} 


void pMainMenu7000() {
  iMenuSelectMin = 7000;
  iMenuSelectMax = 7700;
  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 pMainMenu7100() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    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 pMainMenu7110() {  // 
  iMenuSelectMin = 7110;
  iMenuSelectMax = 7110;
    if (sFlowCalState1ltr == "*") {
       iFlowCalibrationCnt1ltr = 0;
       sFlowCalState1ltr = "-";
    }
    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      ");
    digitalWrite(PUMP_D5, HIGH);  //ON
    iMenuSelect = 7110;
    iMenuSelectStep = 10;
}
void pMainMenu7111() {  // 
  iMenuSelectMin = 7111;
  iMenuSelectMax = 7111;
    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 = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 7100;
    iMenuSelectStep = 100;

}  
void pMainMenu7200() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    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 pMainMenu7210() {  // 
  iMenuSelectMin = 7210;
  iMenuSelectMax = 7210;
    if (sFlowCalState5ltr == "*") {
       iFlowCalibrationCnt5ltr = 0;
       sFlowCalState5ltr = "-";
    }
    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      ");
    digitalWrite(PUMP_D5, HIGH);  //ON
    iMenuSelect = 7210;
    iMenuSelectStep = 10;
}
void pMainMenu7211() {  // 
  iMenuSelectMin = 7211;
  iMenuSelectMax = 7211;
    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 = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 7200;
    iMenuSelectStep = 100;

}  
void pMainMenu7300() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    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 pMainMenu7310() {  // 
  iMenuSelectMin = 7310;
  iMenuSelectMax = 7310;
    if (sFlowCalState10ltr == "*") {
       iFlowCalibrationCnt10ltr = 0;
       sFlowCalState10ltr = "-";
    }
    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      ");
    digitalWrite(PUMP_D5, HIGH);  //ON
    iMenuSelect = 7310;
    iMenuSelectStep = 10;
}
void pMainMenu7311() {  // 
  iMenuSelectMin = 7311;
  iMenuSelectMax = 7311;
    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 = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 7300;
    iMenuSelectStep = 100;

}  
void pMainMenu7400() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    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 pMainMenu7410() {  // 
  iMenuSelectMin = 7410;
  iMenuSelectMax = 7410;
    if (sFlowCalState20ltr == "*") {
       iFlowCalibrationCnt20ltr = 0;
       sFlowCalState20ltr = "-";
    }
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("20ltr - "+String(iFlowCalibrationCnt20ltr)+"      ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("Enter to Stop      ");
    digitalWrite(PUMP_D5, HIGH);  //ON
    iMenuSelect = 7410;
    iMenuSelectStep = 10;
}
void pMainMenu7411() {  // 
  iMenuSelectMin = 7411;
  iMenuSelectMax = 7411;
    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 = "*";
    digitalWrite(PUMP_D5, LOW);  //OFF
    iMenuSelect = 7400;
    iMenuSelectStep = 100;
}  
void pMainMenu7500() {  // 
  iMenuSelectMin = 7100;
  iMenuSelectMax = 7700;
    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 pMainMenu7510() {  // 
  iMenuSelectMin = 7510;
  iMenuSelectMax = 7510;
    if (sFlowCalState40ltr == "*") {
       iFlowCalibrationCnt40ltr = 0;
       sFlowCalState40ltr = "-";
    }
    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      ");
    digitalWrite(PUMP_D5, HIGH);  //ON
    iMenuSelect = 7510;
    iMenuSelectStep = 10;
}
void pMainMenu7511() {  // 
  iMenuSelectMin = 7511;
  iMenuSelectMax = 7511;
    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 = "*";
    digitalWrite(PUMP_D5, LOW);  //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() {
  iMenuSelectMin = 7710;
  iMenuSelect = 7000;
  iMenuSelectStep = 1000;
  iMenuSelectMin = 1000; 
  iMenuSelectMax = 8000; 
} 



void pMainMenu8000() {
  lcd.setCursor ( 0, 0 );        // go to the next line
  lcd.print("Dosing Delay    ");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print("Set Dosing Delay");  
}  

void pMainMenu8100() {  // 
  if (bPauseMenu == 0) {
    lcd.setCursor ( 0, 0 );        // go to the next line
    lcd.print("Dosing Delay:   ");  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("                ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iPumpWaitTimerMax);
    bPauseMenu = 1;
  }
  else if ((A7_VAL > 500) && (A7_VAL < 550)) {  //UP
    if (iPumpWaitTimerMax > 0) {
      iPumpWaitTimerMax = iPumpWaitTimerMax - 1;
    }  
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("   ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iPumpWaitTimerMax);
  }
  else if ((A7_VAL > 630) && (A7_VAL < 730))  { //DOWN
    if (iPumpWaitTimerMax < 180) {
      iPumpWaitTimerMax = iPumpWaitTimerMax + 1;
    }
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print("   ");
    lcd.setCursor ( 0, 1 );        // go to the next line
    lcd.print(iPumpWaitTimerMax);
  }
  else if ((A7_VAL >= 0) && (A7_VAL < 50)) {  //ENTER
    iMenuSelectStep = 1000;
    iMenuSelect = 8000;
    iMenuSelectMin = 1000;
    iMenuSelectMax = 8000;
    bPauseMenu = 0;
  }
}  


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 ((iMenuSelect > 6100) && (iMenuSelect < 7000)){
  if (iMenuSelect == 6110) {
  iPumpCalibrationTime5ml++;
  }
  if (iMenuSelect == 6210) {
  iPumpCalibrationTime25ml++;
  }
  if (iMenuSelect == 6310) {
  iPumpCalibrationTime50ml++;
  }
  if (iMenuSelect == 6410) {
  iPumpCalibrationTime100ml++;
  }
  if (iMenuSelect == 6510) {
  iPumpCalibrationTime200ml++;
  }
}
if (bMenuTimer > 0) {
  bMenuTimer--;
 } 
if (iDebounceCnt>0) {
  iDebounceCnt--;
}

}

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 (bBackLight > 0) {
    bBackLight--;
 }
 if (bWait > 0) {
    bWait--;
 }
 if (bpHDisplayUpdate > 0){
  bpHDisplayUpdate--;
 }
 if (iBasePumpTimerCnt > 0) {
  iBasePumpTimerCnt--;
 }
 if (iAcidPumpTimerCnt > 0) {
  iAcidPumpTimerCnt--;
 }
 if (ipHTestCnt > 0) {
  ipHTestCnt--;
 }
 if (iBasePumpWaitTimer > 0) {
  iBasePumpWaitTimer--;
 }
 if (iAcidPumpWaitTimer > 0) {
  iAcidPumpWaitTimer--;
 }


}
else {
  bSec--;
}
}

  
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)


}