/*
* This ESP32 code is created by esp32io.com
*
* This ESP32 code is released in the public domain
*
* For more detail (instruction and wiring diagram), visit https://esp32io.com/tutorials/esp32-temperature-sensor
*/
#include <OneWire.h>
#include <DallasTemperature.h>
#define SENSOR_PIN 19 // ESP32 pin GIOP17 connected to DS18B20 sensor's DATA pin
OneWire oneWire(SENSOR_PIN);
DallasTemperature DS18B20(&oneWire);
float tempC; // temperature in Celsius
float tempF; // temperature in Fahrenheit
void setup() {
Serial.begin(9600); // initialize serial
DS18B20.begin(); // initialize the DS18B20 sensor
}
void loop() {
DS18B20.requestTemperatures(); // send the command to get temperatures
tempC = DS18B20.getTempCByIndex(0); // read temperature in °C
tempF = tempC * 9 / 5 + 32; // convert °C to °F
Serial.print("Temperature: ");
Serial.print(tempC); // print the temperature in °C
Serial.print("°C");
Serial.print(" ~ "); // separator between °C and °F
Serial.print(tempF); // print the temperature in °F
Serial.println("°F");
delay(500);
}
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ds18b20
ds18b20