View source for DS18B20 Temperature Sensor Module

==introduction==
[[File:DS18b10a.jpg]]

This breakout uses the DS18B20 1-Wire digital temperature sensor from Maxim IC. It can Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each 

sensor has a unique 64-Bit Serial number etched into it - allows for a huge number of sensors to be used on one data bus. This is a wonderful part that is the corner 

stone of many data-logging and temperature control projects.

==Features==
*3.0-5.5V input voltage
*Waterproof
*-55°C to+125°C temperature range
*±0.5°C accuracy from -10°C to +85°C
*1 Wire interface

==Usage==
[[File:DS18b20b.jpg]]

[[File:DS18B20 wiring.jpg|500px]]

==Document==
[http://www.geeetech.com/Documents/DS18b20%20library.zip DS18b20 library]

== Example code==
 #include <DallasTemperature.h>
 DallasTemperature tempSensor; // You may instantiate as many copies as you require.
 void setup(void) {
  Serial.begin(9600);
  tempSensor.begin(12); // Data wire is plugged into port 12 on the Arduino
  Serial.println("Dallas Temperature IC Control Library 1.0. Miles Burton");
 }
 void loop(void) {
    switch(tempSensor.isValid())
    {
        case 1:
            Serial.println("Invalid CRC");
	    tempSensor.reset(); // Attempts to redetect IC            
        return;
        case 2:
            Serial.println("Not a valid device");
            tempSensor.reset(); // Attempts to redetect IC
        return;
    }
  Serial.print(tempSensor.getTemperature());
  Serial.print("C");
  Serial.println();
  Serial.print(DallasTemperature::toFahrenheit(tempSensor.getTemperature()));   
  Serial.print("F");
  Serial.println();
}

==how to buy==
Click here to buy [http://www.geeetech.com/arduino-digital-ds18b20-temperature-sensor-p-17.html DS18B20 Temperature Sensor Module]