/*
  Showing number 0-9 on a Common Anode 7-segment LED display
  Displays the numbers 0-9 on the display, with one second inbetween.
    A
   ---
F |   | B
  | G |
   ---
E |   | C
  |   |
   ---
    D
  This example code is in the public domain.
 */
// Invert HIGH and LOW on/off for Arduino HW
#define HIGH 0
#define LOW 1

#include "DHT.h"
#define DHTTYPE DHT22
int DHTPIN = 13;
DHT DHTSensor(DHTPIN, DHTTYPE);  // Corrected capitalization

int on = 1, off = 0;
// Pin 2-8 are connected to the 7 segments of the display.
int TimeDisplay = 800;
int pinA = 2; // red
int pinB = 3; // grey
int pinC = 4; // brown
int pinD = 5; // purple
int pinE = 6; // pink
int pinF = 7; // yellow
int pinG = 8; // brown
int D1 = 9;   // blue
int D2 = 10;  // green
int D3 = 11;  // orange
int D4 = 12;  // black

// the setup routine runs once when you press reset:
void setup() {
  Serial.begin(9600); // Start serial communication
  DHTSensor.begin();  // Start DHT Sensor

  pinMode(pinA, OUTPUT);
  pinMode(pinB, OUTPUT);
  pinMode(pinC, OUTPUT);
  pinMode(pinD, OUTPUT);
  pinMode(pinE, OUTPUT);
  pinMode(pinF, OUTPUT);
  pinMode(pinG, OUTPUT);
  pinMode(D1, OUTPUT);
  pinMode(D2, OUTPUT);
  pinMode(D3, OUTPUT);
  pinMode(D4, OUTPUT);
}

void loop() {
  float Temperatur = DHTSensor.readTemperature();  // Corrected variable name
  Serial.print("Temperatur: ");
  Serial.print(Temperatur);
  Serial.println(" Celsius");

  // Display number on D1
  digitalWrite(D1, on);
  digitalWrite(D2, off);
  digitalWrite(D3, off);
  digitalWrite(D4, off);
  choice(random(0, 10));  // Corrected function call with argument
  delay(TimeDisplay);

  // Display number on D2
  digitalWrite(D1, off);
  digitalWrite(D2, on);
  digitalWrite(D3, off);
  digitalWrite(D4, off);
  choice(random(0, 10));  // Corrected function call with argument
  delay(TimeDisplay);

  // Display number on D3
  digitalWrite(D1, off);
  digitalWrite(D2, off);
  digitalWrite(D3, on);
  digitalWrite(D4, off);
  choice(random(0, 10));  // Corrected function call with argument
  delay(TimeDisplay);

  // Display number on D4
  digitalWrite(D1, off);
  digitalWrite(D2, off);
  digitalWrite(D3, off);
  digitalWrite(D4, on);
  choice(random(0, 10));  // Corrected function call with argument
  delay(TimeDisplay);
}

// Define the display patterns for each digit
void zero() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, HIGH);
  digitalWrite(pinF, HIGH);
  digitalWrite(pinG, LOW);
}

void one() {
  digitalWrite(pinA, LOW);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, LOW);
  digitalWrite(pinE, LOW);
  digitalWrite(pinF, LOW);
  digitalWrite(pinG, LOW);
}

void two() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, LOW);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, HIGH);
  digitalWrite(pinF, LOW);
  digitalWrite(pinG, HIGH);
}

void three() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, LOW);
  digitalWrite(pinF, LOW);
  digitalWrite(pinG, HIGH);
}

void four() {
  digitalWrite(pinA, LOW);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, LOW);
  digitalWrite(pinE, LOW);
  digitalWrite(pinF, HIGH);
  digitalWrite(pinG, HIGH);
}

void five() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, LOW);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, LOW);
  digitalWrite(pinF, HIGH);
  digitalWrite(pinG, HIGH);
}

void six() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, LOW);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, HIGH);
  digitalWrite(pinF, HIGH);
  digitalWrite(pinG, HIGH);
}

void seven() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, LOW);
  digitalWrite(pinE, LOW);
  digitalWrite(pinF, LOW);
  digitalWrite(pinG, LOW);
}

void eight() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, HIGH);
  digitalWrite(pinF, HIGH);
  digitalWrite(pinG, HIGH);
}

void nine() {
  digitalWrite(pinA, HIGH);
  digitalWrite(pinB, HIGH);
  digitalWrite(pinC, HIGH);
  digitalWrite(pinD, HIGH);
  digitalWrite(pinE, LOW);
  digitalWrite(pinF, HIGH);
  digitalWrite(pinG, HIGH);
}

// Function to select the number to display based on random number
void choice(int Zahl) {
  switch (Zahl) {
    case 0:
      zero();
      break;
    case 1:
      one();
      break;
    case 2:
      two();
      break;
    case 3:
      three();
      break;
    case 4:
      four();
      break;
    case 5:
      five();
      break;
    case 6:
      six();
      break;
    case 7:
      seven();
      break;
    case 8:
      eight();
      break;
    case 9:
      nine();
      break;
  }
}