#include <math.h>

const byte SENSORPIN = 0;

const byte LEDPIN = 3;

const int MINSENSOR = 0;

const int MAXSENSOR = 1023;

const byte MINLED = 0;

const byte MAXLED = 255;

const unsigned long PERIODOLED = 100;

const unsigned long PERIODOMONITOR = 100;

const unsigned long PERIODOSENS = 100;

const float T0 = 25.0;

const float R0 = 10000.0;

const float B = 3977.0;

// -----------------

struct Led {

byte valor;

byte pin;

unsigned long periodo;

unsigned long last_ms;

};

struct Sensor {

unsigned valor_an;

float valor_cels;

byte pin;

unsigned long last_ms;

unsigned long periodo;

};

struct Monitor {

unsigned long periodo;

unsigned long last_ms;

};

// -----------------

void setup_led(struct Led &led, unsigned long periodo, byte pin){

led.valor = HIGH;

led.pin = pin;

led.periodo = periodo;

led.last_ms = 0;

pinMode(led.pin, OUTPUT);

digitalWrite(led.pin, led.valor);

}

void setup_sensor(struct Sensor &sensor, unsigned long periodo, byte pin){

sensor.valor_an = 0;

sensor.pin = pin;

sensor.periodo = periodo;

sensor.last_ms = 0;

}

void setup_monitor(struct Monitor &mont, unsigned long periodo){

mont.periodo = periodo;

mont.last_ms = 0;

Serial.begin(9600);

if(Serial){

Serial.println("#> Graficas");

}

}

// -----------------

void loop_led(struct Led &led, struct Sensor &sensor, unsigned long curr_ms){

if(curr_ms - led.last_ms >= led.periodo){

led.last_ms += led.periodo;

if(sensor.valor_cels >= 30 && sensor.valor_cels <= 35){

led.valor = HIGH;

digitalWrite(led.pin, led.valor);

} else {

led.valor = LOW;

digitalWrite(led.pin, led.valor);

}

}

}

void analog_to_cels(struct Sensor &sensor){

float RTMP = (MAXSENSOR * R0 / sensor.valor_an) - R0;

sensor.valor_cels = (1.0/(1.0/(T0 + 273.15)+1.0/B * log(RTMP/R0))-273.15);

}

void loop_sensor(struct Sensor &sensor, unsigned long curr_ms){

if(curr_ms - sensor.last_ms >= sensor.periodo){

sensor.last_ms = curr_ms;

sensor.valor_an = analogRead(sensor.pin);

analog_to_cels(sensor);

}

}



void loop_monitor(struct Monitor &mont,struct Sensor &sensor, struct Led &led, unsigned long curr_ms){

if(curr_ms - mont.last_ms >= mont.periodo){

mont.last_ms += mont.periodo;

Serial.print(led.valor);

Serial.print(" ");

Serial.print(sensor.valor_cels);

Serial.println();

}

}

// -----------------

struct Led led;

struct Sensor sensor;

struct Monitor mont;

void setup() {

setup_led(led, PERIODOLED, LEDPIN);

setup_sensor(sensor, PERIODOSENS, SENSORPIN);

setup_monitor(mont, PERIODOMONITOR);

}



void loop() {

unsigned long curr_ms = millis();

loop_sensor(sensor, curr_ms);

loop_led(led, sensor, curr_ms);

loop_monitor(mont, sensor, led, curr_ms);



}