// #1 https://wokwi.com/projects/423067790873291777
// #2 https://wokwi.com/projects/403187130149864449
// #3 https://wokwi.com/projects/424874901145541633
// #4 https://wokwi.com/projects/423078470449220609
// Mix aus #3 (I2C-Erweiterungen) und #4 (Cube):  
// https://wokwi.com/projects/425023922333382657 
#include <Wire.h>
#include <SSD1306Ascii.h>
#include <SSD1306AsciiWire.h>
#include <DHT20.h> // requires lib
#include <dht.h>
#include <IRremote.h>
DHT20 dht20;
dht dht22;
#define SP Serial.print
void readDht20( float * temp ) ; 

#define wokwisimulation 1
#define PIN_RECEIVER 2
IRrecv receiver(PIN_RECEIVER)
SSD1306AsciiWire oled;
#define ssd1306 1
#define seriell 1
#define POTI A6
#define ROT 12
#define GELB 11
#define GRUEN 10
//#define D9
unsigned long ms_alt = 0; 
unsigned long ms=0;
bool AmpOn=0;
uint32_t colour;
unsigned long ms2=0;
unsigned long ms_old=0;

#include <Adafruit_NeoPixel.h> // Einbindung der Adafruit_Neopixel.h Bibliothek
#define PIN 4 // An welchem digitalen Pin ist der WS2812B Ring mit dem Mikrocontroller verbunden
#define NUMPIXELS 12 // Über wie viele Pixel verfügt der WS2812B Ring?
Adafruit_NeoPixel led_ring = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

// #include <DHT.h> // Einbinden der <DHT_sensor_library> und <DHT> Bibliothek
// DHT dht11(A3, DHT11);    // DHT11 wird erstellt

//void OLED_Poti( int ad ); 
//void ledRing ( unsigned int value, uint8_t r, uint8_t g, uint8_t b );
//void Ampel_Blinken( byte Ampel_farbe, unsigned int Thalbe );

void setup()  /* setup */
{ 
  receiver.enableIRIn();
  pinMode(9, INPUT);
  #ifdef wokwisimulation   
    led_ring.setBrightness( 210 );
  #else                   
    led_ring.setBrightness( 42 ); // auf HW-Cube viel zu hell
  #endif
  for( byte i=10; i<13; i++) pinMode( i, OUTPUT); // LEDs rot-gelb-gruen
  Wire.begin();
  oled.setFont(System5x7);
  oled.begin(&Adafruit128x64, 0x3C);
  oled.set2X(); 
  led_ring.begin();
  dht20.begin(); // für den DHT20
  //dht22.begin();
  Serial.begin(9600); 
    // ab hier nur noch Nonsens: // sorry, SHNE
 // ledRing( 7, 8, 9, 10 );    // Regenbogenfarben mit Unsinnsargumenten
  //Ampel_Blinken( GELB, 0 );  // blinkt nicht,sondern leuchtet permanent
}   // ende setup

void loop()
{ 
  bool taster = digitalRead(9);
  Serial.print(taster);
  
  int adw = analogRead(A6);
  float t36 = map(adw,20,358,-40,125);
  int temp1 = dht20.read();
  int temp2 = dht22.read22(A3);
  float t20 = dht20.getTemperature();
  float f20 = dht20.getHumidity();
  float t22 = dht22.temperature;
  float f22 = dht22.humidity;

  OLED(t36,t22,t20,taster,f20,f22);
    
  ms2 = millis();
  if (ms2-ms_old > 180000){
    Serial.print("TMP36/°C: ");
    Serial.print(t36);
    Serial.print("DHT22/°C: ");
    Serial.print(t22,2);
    Serial.print("TMP20/°C: ");
    Serial.println(t20,2);
    ms_old=ms2;
    }

  int mittel = (t36+t20+t22)/3;
  ledRing(mittel);
  if(mittel<15){
    Ampel_Blinken(GRUEN,1000);
  }
  else if(mittel>30){
    Ampel_Blinken(ROT,200);
  }
  else{
    Ampel_Blinken(GELB,700);
  }
}   // ende loop

void OLED( int tmp36, float temp22, float temp20, bool taster, float f20, float f22)
{
  if(taster == 0)
  {
    oled.setCursor(0,1);
    oled.print( "T36: " ); 
    oled.print( tmp36); 
    oled.write(128); 
    oled.print("C       ");
    oled.setCursor(0,3);
    oled.print( "D22: " ); 
    oled.print( temp22); 
    oled.write(128); 
    oled.print("C       ");
    oled.setCursor(0,5);
    oled.print( "D20: " ); 
    oled.print( temp20); 
    oled.write(128); 
    oled.print("C       ");
  }
  if(taster == 1)
  {
    oled.setCursor(0,1);
    oled.print( "F20: " );
    oled.print( f20,0 );
    oled.print( " %        " );
    oled.setCursor(0,3);
    oled.print( "F22: " );
    oled.print( f22,0 );
    oled.print( " %        " );
    oled.setCursor(0,5);
    oled.print( "              " );
  }
}

void ledRing ( unsigned int value)
{
  int blue = 0;
  int red = 0;
  int green = 0;
  if (value>=0 & value<256){
    green = value;
    red = 0;
    blue = 255- value;
  }
  if (value>=256 & value<512){
    red = value-255;
    green = 255-red;
    blue = 0;
  }
  colour = led_ring.Color(red,green,blue);
  for( byte i=0; i<NUMPIXELS; i++)
  { 
    led_ring.setPixelColor(i, colour );
  }

  led_ring.show(); // Anzeigen der Pixelfarben auf dem WS2812B LED Ring
}

void Ampel_Blinken( byte Ampel_farbe, unsigned int Thalbe ) {
  ms=millis();
  if((ms-ms_alt>Thalbe)&(AmpOn==false)){
    digitalWrite(ROT,LOW);
    digitalWrite(GELB,LOW);
    digitalWrite(GRUEN,LOW);
    digitalWrite(Ampel_farbe,HIGH);
    AmpOn=true;
    ms_alt=ms;
  }
  if((ms-ms_alt>Thalbe)&(AmpOn==true)){
    digitalWrite(ROT,LOW);
    digitalWrite(GELB,LOW);
    digitalWrite(GRUEN,LOW);
    AmpOn=false;
    ms_alt=ms;
  }
}

void readDht20( float * temp )
{ delay( 800 ) ; 
  dht20.read(); 
  *temp = dht20.getTemperature(); // Einlesen der DHT20-Temperatur      
}