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Water Temperature Sensor (DS18B20)

The DS18B20 is a digital temperature sensor that is addressed via a 1-Wire bus. It can measure temperatures from -55°C to +125°C and is waterproof. It is therefore ideal for measuring water temperature.

warning

To use the sensor with the senseBox you need the 1-Wire adapter. You can purchase it here.

Water Temperature Sensor

Water Temperature Sensor

Connection​

i2c port

Die Komponente wird am I2C Port angeschlossen.

Programming (Arduino)​

Software Library​

To program the sensor in Arduino you need to install the software libraries OneWire and DallasTemperature.

Code​

This code reads the temperature from the sensor and outputs it to the serial interface.

#include <senseBoxIO.h>
#include <OneWire.h> // http://librarymanager/All#OneWire
#include <DallasTemperature.h> // http://librarymanager/All#DallasTemperature


#define ONE_WIRE_BUS 1
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

float getWaterTemp(){
  sensors.requestTemperatures();
  sensors.getTempCByIndex(0);
}

void setup() {
  Serial.begin(9600);
  sensors.begin();
}

void loop() {
  Serial.print("Wassertemperatur: ");
  Serial.print(getWaterTemp());
}

Programming (Blockly)​

In Blockly you can read the sensor with the following block: