#define Entrada 12
#define Pulsador1 27 //Modo
#define Pulsador2 26 //tipo

#define Fpwm 15

int pulso = 0; //0 entra primer flanco, 1 entra segundo flanco.

int modo = 0;//modo 0: menu, modo 1: OperacionNormal
int tipo = 0;//tipo 0: circuito 1; tipo 1: circuito 0

int imp = 0; //impprimir el dato

float T = 0;
float t1 = 1;
float t2 = 2;
float f = 0;

float Q = 0;
float Q2= 0; //caudal en LMP

//Sensor1 LIT 4
float m1 = 0.1; //Lmin/Hz
float kp1 = 0.264172874; //Kte conversion LMIn a GPM
float m2 = 9.7959184;
float kp2 = 0.00440287;//Kte conv LHora a GPM
float kp3 = 0.0166667;//Kte conv Lhora a LPM


const int frecp = 100;//PWM prueba
const int ledChannel = 0;//PWM prueba
const int resolution = 8;//PWM prueba
const int ledPin = 14; //PWM prueba
int dutyCycle = 128;//PWM prueba

volatile int interruptCounter;

hw_timer_t * timer2 = NULL;
portMUX_TYPE timerMux2 = portMUX_INITIALIZER_UNLOCKED;

void IRAM_ATTR onTimer2(){
  // Critical Code here
  portENTER_CRITICAL_ISR(&timerMux2);
   interruptCounter++;
   imp = 1-imp;
  portEXIT_CRITICAL_ISR(&timerMux2);
}



void IRAM_ATTR interrupcion(){  
    pulso = 1-pulso;
    if(pulso == 1){
    t1 =micros(); //Tiempo ptrimer flanco
  }else{
    t2 = micros()-t1;
  }
  }

void IRAM_ATTR IntP1(){  
    modo = 1-modo;
  }

void IRAM_ATTR IntP2(){  
    tipo = 1-tipo;
  }

void setup() {
  Serial.begin(9600);
  pinMode(Entrada, INPUT);
  pinMode(Pulsador1, INPUT);
  pinMode(Pulsador2, INPUT);
  pinMode(Fpwm, OUTPUT);

  attachInterrupt(Entrada, interrupcion, RISING);
  attachInterrupt(Pulsador1, IntP1, FALLING);
  attachInterrupt(Pulsador2, IntP2, FALLING);

  ledcSetup(ledChannel, frecp, resolution);//PWM prueba
  ledcAttachPin(ledPin, ledChannel);//PWM prueba
  ledcWrite(ledChannel, dutyCycle); //PWM prueba

  timer2 = timerBegin(2, 80, true);
  timerAttachInterrupt(timer2, &onTimer2, true);
  timerAlarmWrite(timer2, 2000000, true);
  timerAlarmEnable(timer2);
}

void loop() {
  // put your main code here, to run repeatedly:
  if(imp==1){
    if(modo == 0){
      impmenu();
    }else{
      if(tipo == 0){
        imprimirC1();
      } else{
        imprimirC2();
      }
    }
    imp = 0;
  }

 calcular();
 flpwm();

}

void calcular(){
  T = t2/1000;
  f = (1/T)*1000;

  if(tipo == 0){
    calcularC1();
  }else{
    calcularC2();
  }
}

void calcularC1(){
  Q = m1*f*kp1;
}

void calcularC2(){
 Q = m2*f*kp2;
 Q2 = m2*f*kp3;
}

void impmenu(){
  Serial.println("Tipo de sensor: ");
  if(tipo == 0){
    Serial.println("KOBOLD DRS9.5-F30");
    Serial.println("  ");
  }else{
    Serial.println("YF-S201");
    Serial.println("  ");
  }
}


void imprimirC1(){
  Serial.println("KOBOLD DRS9.5-F30");
  Serial.print("Periodo[ms]: ");
  Serial.println(T);
  Serial.print("Frecuencia[Hz]: ");
  Serial.println(f);
  Serial.print("Caudal[GPM]: ");
  Serial.println(Q);
  Serial.println("  ");
}

void imprimirC2(){
  Serial.println("YF-S201");
  Serial.print("Periodo[ms]: ");
  Serial.println(T);
  Serial.print("Frecuencia[Hz]: ");
  Serial.println(f);
  Serial.print("Caudal[GPM]: ");
  Serial.println(Q);
  Serial.print("Caudal[LPM]: ");
  Serial.println(Q2);
  Serial.println("  ");
}

void flpwm(){
  //falsa pwm de pruebas
  digitalWrite(Fpwm,1);
  delay(50);//delay 50 ms
  digitalWrite(Fpwm,0);
  delay(50);//delay 50 ms
}