====== ESP32 DS18B20 =====
This is an example of the ds18b20 running and showcasing temperature using the 16x2 lcd.

===== Prequisits ====
Platform.ini
<code>
lib_deps = adafruit/Adafruit LiquidCrystal@^2.0.2
  milesburton/DallasTemperature@^3.11.0
</code>
===== Example ====
<code>
#include <Arduino.h>
#include <Adafruit_LiquidCrystal.h>
#include <DallasTemperature.h>

/* DS18B20 */
#define ONE_WIRE_BUS 14
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

#define LCD_RS 48
#define LCD_ENABLE 47
#define LCD_D4 34
#define LCD_D5 33
#define LCD_D6 26
#define LCD_D7 21

static Adafruit_LiquidCrystal lcd(LCD_RS, LCD_ENABLE, LCD_D4, LCD_D5, LCD_D6, LCD_D7);

void setup() {
  if (!lcd.begin(16, 2)) {
    Serial.println("Could not init LCD");
    while(1);
  }
  Serial.println("LCD ready.");

  // Print a message to the LCD.
  lcd.print("IOT-OPEN");

  /* ds18b20 setup */
  sensors.begin();
}
void loop() {
  sensors.requestTemperatures();
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  lcd.print(sensors.getTempCByIndex(0));
  delay(1000);
}
</code>