Digital Temperature Sensor DS18B20

Image: 

Description: 

This is a waterproof temperature sensor allowing it to be used in a wet condition. It's one wire interface, so only 1 digitial i/o is required. Each sensor has a unique 9-bit serial number stored in the ROM. This feature allows unlimited number of these sensors to be connected to the same i/o pin. The sensor is digital and it can give 12 bit of precision from it's embedded Analogue to Digital converter.No external circuit and amplifier is needed to interface this temperature sensor to a microcontroller. It only requires a 4K7 resistor. Here shows how to interface this sensor to an Arduino with example code and library available.

This page described how to interface this sensor with Arduino Mega.

DS18B20 Datasheet Download

Specifications:

  • 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

DS18B20 Sensor Pin outs

RED Vcc, 3 - 5 V
BLACK GND
WHITE Data
COPPER Solder to wire shielding

Interface to Arduino

DS18B20 to Arduino

Catalog: 

Price: $15.00
Zircon - This is a contributing Drupal Theme
WeebPal