// https://forum.arduino.cc/t/help-with-programming-7-segment-display-for-dht-sensor/1403013
// https://projecthub.arduino.cc/SAnwandter1/programming-4-digit-7-segment-led-display-5c4617

#include <Arduino_SensorKit.h> // https://github.com/arduino-libraries/Arduino_SensorKit

int pinA = 2;
int pinB = 3;
int pinC = 4;
int pinD = 5;
int pinE = 6; // A1;
int pinF = 7;
int pinG = 8;
int D1 =   9; // 6;
int D2 =  10; // 9;
int D3 =  11; // 10;
int D4 =  12; // 11;
int DP =  13;
int digits = 4;

void setup() {
  Serial.begin(115200);

  Environment.setPin(A0); // DHT pin
  Environment.begin();

  for (int i = 2; i < 14; i++) // configure LED pins
    pinMode(i, OUTPUT);
}

void loop() {
  float temp = Environment.readTemperature();
  // Serial.print("Temperature = ");
  Serial.print("t ");
  Serial.print(temp);
  // Serial.println(" C");
  Serial.println();

  float humi = Environment.readHumidity();
  // Serial.print("Humidity = ");
  Serial.print("h ");
  Serial.print(Environment.readHumidity()); //print humidity
  // Serial.println(" %");
  Serial.println();

  delay(2000);

  for (int i = 0; i < digits; i++) {
    switch (i) {
      case 1: {
          digitalWrite(D1, LOW);
          digitalWrite(D2, HIGH);
          digitalWrite(D3, HIGH);
          digitalWrite(D4, HIGH);
          break;
        }
      case 2: {
          digitalWrite(D1, HIGH);
          digitalWrite(D2, LOW);
          digitalWrite(D3, HIGH);
          digitalWrite(D4, HIGH);
          break;
        }
      case 3: {
          digitalWrite(D1, HIGH);
          digitalWrite(D2, HIGH);
          digitalWrite(D3, LOW);
          digitalWrite(D4, HIGH);
          break;
        }
      case 4: {
          digitalWrite(D1, HIGH);
          digitalWrite(D2, HIGH);
          digitalWrite(D3, HIGH);
          digitalWrite(D4, LOW);
          break;
        }
    }

    switch (i) {
      case 0: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, HIGH);
          digitalWrite(pinE, HIGH);
          digitalWrite(pinF, HIGH);
          digitalWrite(pinG, LOW);
          break;
        }
      case 1: {
          digitalWrite(pinA, LOW);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, LOW);
          digitalWrite(pinE, LOW);
          digitalWrite(pinF, LOW);
          digitalWrite(pinG, LOW);
          break;
        }
      case 2: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, LOW);
          digitalWrite(pinD, HIGH);
          digitalWrite(pinE, HIGH);
          digitalWrite(pinF, LOW);
          digitalWrite(pinG, HIGH);
          break;
        }
      case 3: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, HIGH);
          digitalWrite(pinE, LOW);
          digitalWrite(pinF, LOW);
          digitalWrite(pinG, HIGH);
          break;
        }
      case 4: {
          digitalWrite(pinA, LOW);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, LOW);
          digitalWrite(pinE, LOW);
          digitalWrite(pinF, HIGH);
          digitalWrite(pinG, HIGH);
          break;
        }
      case 5: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, LOW);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, HIGH);
          digitalWrite(pinE, LOW);
          digitalWrite(pinF, HIGH);
          digitalWrite(pinG, HIGH);
          break;
        }
      case 6: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, LOW);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, HIGH);
          digitalWrite(pinE, HIGH);
          digitalWrite(pinF, HIGH);
          digitalWrite(pinG, HIGH);
          break;
        }
      case 7: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, LOW);
          digitalWrite(pinE, LOW);
          digitalWrite(pinF, LOW);
          digitalWrite(pinG, LOW);
          break;
        }
      case 8: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, HIGH);
          digitalWrite(pinE, HIGH);
          digitalWrite(pinF, HIGH);
          digitalWrite(pinG, HIGH);
          break;
        }
      case 9: {
          digitalWrite(pinA, HIGH);
          digitalWrite(pinB, HIGH);
          digitalWrite(pinC, HIGH);
          digitalWrite(pinD, LOW);
          digitalWrite(pinE, LOW);
          digitalWrite(pinF, HIGH);
          digitalWrite(pinG, HIGH);
          break;
        }
    }
  }
}