// include these libraries
#include <Wire.h>
#include <Adafruit_SH110X.h>
#include <Adafruit_SGP30.h>
#include <DHT.h>
#include <WiFiMulti.h>
#include <WiFi.h>
#include <WebSocketsClient.h>
#include <nodeCodeHeader.h>

// define pins on esp32
#define MICPIN 6
#define DHTPIN 7
#define SCL 9
#define SDA 8
#define DHTTYPE DHT11
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define i2c_adress 0x3c
#define USE_SERIAL Serial

// make new objects
Adafruit_SH1106G display = Adafruit_SH1106G(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire);
DHT dht(DHTPIN, DHTTYPE);
WiFiMulti WiFiMulti;
Adafruit_SGP30 sgp;
WebSocketsClient webSocket;

// define variables
uint16_t TVOC_base, eCO2_base;
uint16_t counter = 0;
uint16_t eCO2 = 0;
uint16_t TVOC = 0;
uint16_t interval = 5000;
float temperature = 0;
float humidity = 0;
unsigned long currentMillis;
unsigned long lastMillis;
bool errorSGP30 = false;
bool errorDHT11 = false;
bool noise = false;