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DS18B20 Digital temperature sensor + extras

PRODUCT ID: 374
$3.95
QTY DISCOUNT
1-9$3.95
10-99$3.56
100+$3.16
  • Description

    Description-

    These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.

    The only downside is they use the Dallas 1-Wire protocol, which is somewhat complex, and requires a bunch of code to parse out the communication. There's a great Arduino library for 1-Wire, but some microcontrollers do not have support for 1-Wire so be sure to check!

    We toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line when using the sensor. We don't have a detailed tutorial up yet but you can get started by using the Dallas Temperature Control Arduino library which requires also the OneWire Library.

  • Technical Details

    Technical Details+

    Technical specs:

    • Usable temperature range: -55 to 125°C (-67°F to +257°F)
    • 9 to 12 bit selectable resolution
    • Uses 1-Wire interface- requires only one digital pin for communication
    • Unique 64 bit ID burned into chip
    • Multiple sensors can share one pin
    • ±0.5°C Accuracy from -10°C to +85°C
    • Temperature-limit alarm system
    • Query time is less than 750ms
    • Usable with 3.0V to 5.5V power/data

    Downloads:

    DS18B20 Datasheet

  • Learn

    Learn+

    Measure temperature with your Raspberry Pi using the DS18B20
    Build a large LED Thermometer / Clock using a Raspberry Pi

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