//test esp32

// Second = 1000;        // Interval voor de seconde update (1000 milliseconden = 1 seconde)
// Minute = 60000;       // Interval voor de minuut update (60000 milliseconden = 1 minuut)
// 5 minutes = 300000;
// 10 minutes = 600000;
// QuarterHour = 900000; // Interval voor de kwartier update (900000 milliseconden = 15 minuten)
// HalfHour = 1800000;   
// Hour = 3600000;

// I2C 16x2 LCD
#include <Wire.h>
#include <LiquidCrystal_I2C.h> // Library for LCD
LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

const unsigned long sensorTimer = 120000; // 2 minutes
const unsigned long transmitTimer = 120000; // 2 minutes

unsigned long previousTime_sensorTimer = 0;
unsigned long previousTime_transmitTimer = 0;

const int buttonPin = 3;  // the number of the pushbutton pin
// variables will change:
int buttonState = 0;  // variable for reading the pushbutton status

void setup() {
  Serial.begin(115200);
  pinMode(13, OUTPUT);
  pinMode(buttonPin, INPUT);

  Serial.println("Hello Arduino Nano ESP32!");

  lcd.init();
}

void loop() {

  unsigned long currentTime = millis();

      // HC12 timer stuff
    if( currentTime - previousTime_sensorTimer >= sensorTimer){

      Serial.println("SensorTest!");

      digitalWrite(13, HIGH);
      delay(1000);
      digitalWrite(13, LOW);
      delay(1000);

      previousTime_sensorTimer = currentTime;

} 

// read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (buttonState == HIGH) {
    // turn LED on:
    lcd.backlight();
    lcd.display();
  } else {
    // turn LED off:
    lcd.noDisplay();
    lcd.noBacklight();
  }


/**
  digitalWrite(13, HIGH);
  delay(500);
  digitalWrite(13, LOW);
  delay(500);
  
  lcd.setCursor(0,0);
  lcd.print("Hello, From");
  lcd.setCursor(0,1);
  lcd.print("Arduino_uno_guy");

    // Bouw JSON-bericht
  String payload = "{\"temp\":" + String(temperature, 1) + 
                   ",\"hum\":" + String(humidity, 1) + 
                   ",\"dist\":" + String(distance, 1) + "}";
  **/
}