ES Lab 2

#include <LiquidCrystal.h>
#include <math.h>

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

int button = 11;

int redLed = 12;
int greenLed = 8;
int PWMLed = 9;

boolean canPrint = false;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  lcd.begin(16, 2);

  pinMode(redLed, OUTPUT);
  pinMode(greenLed, OUTPUT);
  pinMode(PWMLed, OUTPUT);
  pinMode(button, INPUT);

  digitalWrite(greenLed, LOW);
  digitalWrite(redLed, HIGH);
  lcd.clear();

}

void loop() {


  if (digitalRead(button) == HIGH){
    switchLeds();
    canPrint = !canPrint;
    delay(100);
  }

  if(canPrint == true){
    lcdPrintTemp();
  }
   else
  {
   lcd.clear();
  }

}

void switchLeds() {
  digitalWrite(redLed, !digitalRead(redLed));
  digitalWrite(greenLed, !digitalRead(greenLed));
}


void lcdPrintTemp() {
  lcd.setCursor(0, 0);
  lcd.print("Temperatura: ");
  float temperatura = readTempInCelsius(10,0);
  PWM(temperatura);
  lcd.setCursor(0, 1);
  lcd.print(temperatura);
  lcd.print("  ");
  lcd.print("C");
  delay(200);
}

void PWM(float temperature) {
  if (temperature >= 22.00 && temperature < 24.00) {
    analogWrite(PWMLed, 1);
  }
  else if (temperature >=24.00 && temperature < 26.00) {
    analogWrite(PWMLed, 10);
  }
   else if (temperature >=26.00 && temperature < 28.00) {
    analogWrite(PWMLed, 30);

  } else if (temperature >=28.00 && temperature < 30.00) {
    analogWrite(PWMLed, 65);
  }
   else if (temperature >=30.00 && temperature < 32.00) {
    analogWrite(PWMLed, 125);
  }
   else if (temperature >=32.00 && temperature < 34.00) {
    analogWrite(PWMLed, 255);
  }
  delay(30);
}

float readTempInCelsius(int count, int pin) {
  float temperaturaMediata = 0;
  float sumaTemperatura = 0;
  for (int i =0; i < count; i++) {
    int reading = analogRead(pin);
    float voltage = reading * 5.0;
    voltage /= 1024.0;
    float temperatureCelsius = (voltage - 0.5) * 100 ;
    sumaTemperatura = sumaTemperatura + temperatureCelsius;
  }
  return sumaTemperatura / (float)count;
}