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//Variables for Fancurve calculation
{
int temp1 = 30;

int speed1 = 20;

int temp2 = 40;

int speed2 = 40;

int temp3 = 50;

int speed3 = 60;

int temp4 = 60;

int speed4 = 80;

int speedMax = 100;
}

//Constantes
{
int AI_TMP36 = 0; //THIS IS P5, P5 is Analog Input 0, so when you are using analog read you refer to it as 0

int DO_greenLed = 0;

int DO_yellowLed = 1;

int DO_redLed = 2;

int AI_potentiometer = 3;

int AO_clkAmplifier = 4;
}

//Aplication Variables
{
int temp[10];

int time= 20;

int temperature = 0;

int manualAdjust = 0;

int clkOutputPercent = 0;

int clkOutputValue = 0;
}




void setup()
{
pinMode(AO_clkAmplifier, OUTPUT);
pinMode(DO_greenLed, OUTPUT);
pinMode(DO_yellowLed, OUTPUT);
pinMode(DO_redLed, OUTPUT);
pinMode(AI_potentiometer, INPUT);
pinMode(AI_TMP36, INPUT);
}


void loop()
{

//get average Temperature in Celsius
{

for (int i = 0; i < 10; i++)
{
temp = map(analogRead(AI_TMP36), 0, 410, -50, 150);
delay(time);
}
temperature=(temp[0]+temp[1]+temp[2]+temp[3]+temp[4]+temp[5]+temp[6]+temp[7]+temp[8]+temp[9])/10;
}


//calculate clk output in percent, add manualAdjust and then convert in analog output range
{

if (temperature <= temp1) // Minimal speed
{
clkOutputPercent = speed1;
}

if (temperature > temp1 and temperature <= temp2) // Speed2
{
int m1 = (speed2 - speed1) / (temp2 - temp1); // calculate linear function
int b1 = speed2 - m1 * temp2;
int fx1 = m1 * temperature + b1;
clkOutputPercent = fx1;
}

if (temperature > temp2 and temperature <= temp3) // Speed3
{
int m2 = (speed3 - speed2) / (temp3 - temp2); // calculate linear function
int b2 = speed3 - m2 * temp3;
int fx2 = m2 * temperature + b2;
clkOutputPercent = fx2;
}

if (temperature > temp3 and temperature <= temp4) // Speed4
{
int m3 = (speed4 - speed3) / (temp4 - temp3); // calculate linear function
int b3 = speed4 - m3 * temp4;
int fx3 = m3 * temperature + b3;
clkOutputPercent = fx3;
}

if (temperature > temp4) // set maximal speed when temperature > temp4
{
clkOutputPercent = speedMax;
}

manualAdjust = map(analogRead(AI_potentiometer), 0, 1023, 0, 100);
clkOutputPercent = clkOutputPercent + manualAdjust; // add manualAdjust to rise the speed manually

if (clkOutputPercent > 100) // maximal 100% limiter
{
clkOutputPercent = 100;
}

clkOutputValue = (255 / 100 * clkOutputPercent); //convert from Percent to Analog output range

analogWrite(AO_clkAmplifier, clkOutputValue);
}


// set Temperature Leds
{

if (temperature <= temp1)
{
digitalWrite(DO_greenLed, HIGH);
digitalWrite(DO_yellowLed, LOW);
digitalWrite(DO_redLed, LOW);
}

if (temperature > temp1 and temperature <= temp2)
{
digitalWrite(DO_greenLed, HIGH);
digitalWrite(DO_yellowLed, HIGH);
digitalWrite(DO_redLed, LOW);
}

if (temperature > temp2 and temperature <= temp3)
{
digitalWrite(DO_greenLed, LOW);
digitalWrite(DO_yellowLed, HIGH);
digitalWrite(DO_redLed, LOW);
}

if (temperature > temp3 and temperature <= temp4)
{
digitalWrite(DO_greenLed, LOW);
digitalWrite(DO_yellowLed, HIGH);
digitalWrite(DO_redLed, HIGH);
}

if (temperature > temp4)
{
digitalWrite(DO_greenLed, LOW);
digitalWrite(DO_yellowLed, LOW);
digitalWrite(DO_redLed, HIGH);
}

}
}