#include <OneWire.h>
#include <DallasTemperature.h>

#define ONE_WIRE_BUS 2 // GPIO 2

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

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

void loop() {
  sensors.requestTemperatures();
  float tempC = sensors.getTempCByIndex(0);
  Serial.println(tempC); // Send value to Processing
  delay(1000);
}