#include <Wire.h> 

#define LED_ROT  10
#define LED_GRUEN 9
#define LED_BLAU  8
#define Taster   11
#define Sensor   A0

int LED_ROTStatus; 

#define MAX_Array 100

float meinArray[100]; 

unsigned long millis_alt = 0; 

float TempDigi;
float Temperatur;
int counter = 0; 

boolean taster;
boolean schalte; 

bool tasterstatus = false;
int zaehler;


void setup() {
  pinMode(LED_ROT, OUTPUT);
  pinMode(LED_GRUEN, OUTPUT);
  pinMode(LED_BLAU, OUTPUT);
  pinMode(Taster, INPUT_PULLUP);

  millis_alt = millis(); 

  Serial.begin(9600);
}
////////////////////////////////////////////////////////
///////////////////////////////////////////////////////
void loop() {

  taster = digitalRead(11);
  // schalte = Schalter(taster);
  
 if(taster == LOW && tasterstatus == false)
  {
    tasterstatus = true;
    Serial.print("Mittelwert : ");
    Serial.println(Mittelwert());
    Serial.print("Min Wert : ");
    Serial.println(Minwert());
    Serial.print("Max Wert : ");
    Serial.println(Maxwert());
    Serial.println(Temperatur);
  } 

if(taster == HIGH)
  {
    tasterstatus = false;
    delay(20);
  }
///////////////////////////////////////////////////////
  if(Temperatur < 15.0 || Temperatur > 25.0)
  {
    digitalWrite(LED_ROT, HIGH);
    digitalWrite(LED_GRUEN, LOW);
  }
  else
  {
    digitalWrite(LED_GRUEN, HIGH);
    digitalWrite(LED_ROT,   LOW);
  }

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

  if(counter < 100)
  {
    if(millis() - millis_alt > 1000)
    {
      TempDigi = analogRead(Sensor);
      Temperatur = TempDigi * 5.0 * 10.0 / 1024;
      meinArray[counter] = Temperatur;
      counter ++;
      millis_alt = millis();
      digitalWrite(LED_BLAU, HIGH);
      digitalWrite(LED_BLAU, LOW);
      // Serial.println(Temperatur);
      // Serial.println(meinArray[counter]);
      // Serial.println(counter);
    }
  }
  else
  {
    counter = 0; 
  }
}

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

float Mittelwert()
{
  int Summe = 0;
  float mittelwert; 

  for (int i=0; i < 100; i ++)
  {
    Summe += meinArray[i];
    mittelwert = Summe / 100;
  }
  return(mittelwert); 
}

float Minwert()
{
  float MinWert;
  for (int i=0; i < 100; i ++)
  {
    if (meinArray[i] < MinWert)
    {
    MinWert = meinArray[i];
    }  
  }
  return(MinWert);
}

float Maxwert()
{
  float MaxWert;
  for (int i= 0; i < 100; i ++)
  {
    if(meinArray[i] > MaxWert)
    {
      MaxWert = meinArray[i]; 
    }
  }
  return(MaxWert);
}











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

/*bool Schalter(bool btn)
{
  static unsigned long altzeit = millis(); 
  static bool status = 0;
  static bool flanke = 0;

  if (millis() - altzeit >= 20)
  {
    altzeit = millis();
    if (!btn && !flanke)
    {
      flanke = true;
      status = !status;
    }
    if (btn) flanke = false; 
  }
  return (status);
}
*/
////////////////////////////////////////////////////