/*

*/
#include <EEPROM.h>
int addressLO = 2; // NumA //*******
int addressHI = 6; // numB //*******

// *** TM1637 Display ***
#include <TM1637Display.h>
#define CLK 2 // pin 2
#define DIO 3
TM1637Display display(CLK, DIO);

#define UP_BUTTON 4
#define DOWN_BUTTON 5
#define SELECT_BUTTON 6

#define motor 8 // motor pin 8

float numA = 11; 
float valA = 0;
int displayA = 0;

float numB = 1; 
float valB = 0;
int displayB = 0;

bool menuMain = 1;
int menuState = 0;    // Menu up-down
bool setInMenu = 1;
int menuX = 0; // 0 = off  1=Menu A, 2=Menu B 3=...
byte voltHi = 0; 
// *** funcTime_OnOff() /////
const int ledPin = 12; 
unsigned long previousMillis = 0; // เก็บเวลาครั้งสุดท้ายที่ LED เปลี่ยนสถานะ
bool ledState = LOW;              // สถานะเริ่มต้นของ LED 
////////////////////////////

void setup() {
  Serial.begin(115200);
  display.setBrightness(0x0f); // 0-4
  display.showNumberDecEx(1234, false, 1);

  pinMode(A0, INPUT);

  pinMode(motor, OUTPUT); // pump
  digitalWrite(motor, LOW);  
  delay(2000);
  digitalWrite(motor, HIGH); delay(1500);
  digitalWrite(motor, LOW); 

  pinMode(UP_BUTTON, INPUT_PULLUP);
  pinMode(DOWN_BUTTON, INPUT_PULLUP);
  pinMode(SELECT_BUTTON, INPUT_PULLUP);

//*************************************
  EEPROM.put(addressLO, numA); delay(100); // *** xxxxx
  EEPROM.put(addressHI, numB); delay(100); // *** xxxxx

  EEPROM.get(addressLO, numA); delay(100);
  EEPROM.get(addressHI, numB); delay(100);
//**************************************
}
//////////////////////////////

void loop() { 
  if ((setInMenu == 1) && (digitalRead(SELECT_BUTTON) == LOW)) {
    setMenu();  // goto set menu
  } 
  float volte = analogRead(A0); delay(10);
  // *** Display /////////////////////////
  volte = map(volte, 0, 1023, 100, 190);
  display.showNumberDecEx(volte, false);
  volte = volte / 10;
  Serial.println(volte, 4); //*************
  /////////////////////////////////////// 
  if (volte >= (numA+numB-0.1)) {                // *** >HI
    digitalWrite(motor, HIGH); delay(100);
    funcTime_OnOff();
    voltHi = 1;
    }

  if ((volte > numA) && (voltHi == 1)) {    // *** HI
    digitalWrite(motor, HIGH); 
    funcTime_OnOff();
    }

  if (volte <= numA) {                       // *** LO
    delay(2000);
    digitalWrite(motor, LOW);
    voltHi = 0;

    digitalWrite(ledPin, LOW); 
    previousMillis = 0; // เก็บเวลาครั้งสุดท้ายที่ LED เปลี่ยนสถานะ
    bool ledState = LOW; 
    }
} // *** end loop
//////////////////////////////////////////

void setMenu()
{
  digitalWrite(motor, LOW);
  int whileOUT = 0; // loop  setmenu
  //int menuX = 0; // 0 = off  1=Menu A, 2=Menu B 3=...
  while (whileOUT == 0) {
    Serial.println("inMenu");
    bool up     = digitalRead(UP_BUTTON);
    bool down   = digitalRead(DOWN_BUTTON);
    bool select = digitalRead(SELECT_BUTTON);

    if ((digitalRead(SELECT_BUTTON) == LOW) && (menuMain == 1)) {
      delay(300);
      display.showNumberHexEx(0xAbCd, 0, false, 4); // abcd
      menuX = 1;  // goto menu A
      delay(300);    
    }  

//// menu A /////////////////////////////////////////////
    if ((digitalRead(SELECT_BUTTON) == LOW) && (menuX == 1)) {
      delay(300);
      display.clear(); 
      display.showNumberHexEx(0xA, 0, true, 1); delay(1000); // A
      display.showNumberDecEx(numA*10, false);
      Serial.println(numA, 1); delay(300); 
      menuMain  = 0;  // off menuMain
      menuState = 1;  // goto up-down
      menuX     = 2;  // goto menu B
    }
    if ((digitalRead(UP_BUTTON) == LOW) && (menuState == 1)) {
      delay(300);
      if (numA < 19) { // 19 volt
        numA = numA + 0.1; delay(300);
        Serial.println(numA, 1); //*** 
        displayA = (numA * 10); 
        display.showNumberDecEx(displayA, false);  ///***** 
        menuState = 1; // up
      }
    }
    if ((digitalRead(DOWN_BUTTON) == LOW) && (menuState == 1)) {
      delay(300);
      if (numA > 11) { // 11 volt
        numA = numA - 0.1; delay(300);
        Serial.println(numA, 1);
        displayA = (numA * 10);  //******************
        display.showNumberDecEx(displayA, false); 
        menuState = 1; // down
      }
    }
//// menu A /////////////////////////////////////////////

//// menu B /////////////////////////////////////////////
    if ((digitalRead(SELECT_BUTTON) == LOW) && (menuX == 2)) {
      delay(300);
      display.clear(); ///*********************
      display.showNumberHexEx(0xb, 0, true, 1); delay(1000);
      display.showNumberDecEx(numB*10, false);
      Serial.println(numB, 4); delay(300); 
      menuMain  = 0;    // off menuMain
      menuState = 2;    // goto up-down
      menuX     = 3;    // goto menu eeprom exit
        
    }
    if ((digitalRead(UP_BUTTON) == LOW) && (menuState == 2)) {
      delay(300);
      if (numB < 6) {
        numB = numB + 0.1; delay(300);
        Serial.println(numB, 1); //*** 
        displayB = (numB * 10); 
        display.showNumberDecEx(displayB, false);  ///***** B___
        menuState = 2; // up
      }
    }
    if ((digitalRead(DOWN_BUTTON) == LOW) && (menuState == 2)) {
      delay(300);
      if (numB > 1) {
        numB = numB - 0.1; delay(300);
        Serial.println(numB, 1); //*** 
        displayB = (numB * 10); 
        display.showNumberDecEx(displayB, false);  ///********
        menuState = 2; //down
      }
    }
//// menu B /////////////////////////////////////////////

//// menu eeprom - exit menu //////////////////////////////
    if ((digitalRead(SELECT_BUTTON) == LOW) && (menuX == 3)) {
      delay(300);
      display.clear(); 
      display.showNumberHexEx(0xE00E, 0, false, 4); 
      EEPROM.put(addressLO, numA); delay(200);
      EEPROM.put(addressHI, numB); delay(200);
      Serial.println("Write EEPROM Exit."); ///*******
      menuMain = 1;  // set goto menuMain
      whileOUT = 1;  // out menu goto Loop
    }
//// menu eeprom ////////////////////////////////////////

  } // **** in while....
} // *** setMenu 

///////////////////////////////////////////////////////

// ******
/////////////////
void funcTime_OnOff()
{
  const long ledOnTime  = 10000; 
  const long ledOffTime = 4000; 
  Serial.println("time On Off"); //*******************
    
  unsigned long currentMillis = millis(); // อ่านเวลาปัจจุบัน
  if (ledState == HIGH && currentMillis - previousMillis >= ledOnTime) {
    // ถ้า LED เปิดอยู่และเวลาผ่านไปเกิน 2 
    ledState = LOW; 
    previousMillis = currentMillis; // รีเซ็ตเวลาเริ่มต้น
    digitalWrite(ledPin, ledState); // ปิด LED
  } else if (ledState == LOW && currentMillis - previousMillis >= ledOffTime) {
      // ถ้า LED ปิดอยู่และเวลาผ่านไปเกิน 1 
      ledState = HIGH; 
      previousMillis = currentMillis; // รีเซ็ตเวลาเริ่มต้น
      digitalWrite(ledPin, ledState); // เปิด LED
    }
}
////////////////




/////////////////////////////

  //display.setBrightness(0x0f); // 0-4
  //display.showNumberDecEx(1234, false, 1); delay(1500);
  //display.showNumberHexEx(0xAbCd, 0, false, 4); delay(200);
  //display.showNumberHexEx(0xA, 0, false, 1); delay(200);
  //display.showNumberHexEx(0xd, 0, false, 4); delay(200);
  //display.showNumberHexEx(0xAbCd, 0, false, 4);