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DS18B20+ One Wire Digital Temperature Sensor

Product Code:MMP-0251

Ex.Tax £3.33

Availability: 299

DS18B20+ One Wire Digital Temperature Sensor
DS18B20+ One Wire Digital Temperature Sensor
Questions1 Answers1 | Expand All
Maximum cable length ?
What is the max. Cable length the sensor can reasonably be expected to work with using the pi's power supply
  • There's not a simple answer for this really as there are many things that will have an affect. Your best bet is to have a search on the internet and see how other people have managed to get the sensor working over long distances.
    ModMyPi LTD
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A genuine Maxim sourced DS18B20+ One Wire Digital Temperature Sensor. The DS18B20+ is the perfect low-cost solution for a range of Raspberry Pi and Arduino temperature control and data-logging projects! The DS18B20+ measures temperature in degrees Celsius with 9 to 12-bit precision and includes an alarm function with nonvolatile user-programmable upper and lower trigger points. Sensing range is -55C to 125C (accurate to ±0.5°C over the range of -10°C to +85°C), and each sensor has a unique 64-bit serial number hard-programmed enabling the use of a number of sensors on a single data bus.
The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor, and can be powered on the Raspberry Pi's 3.3V power line.
The DS18B20+ Features:
  • Unique 1-Wire Interface Requires Only One Port Pin for Communication
  • Each Device has a Unique 64-Bit Serial Code Stored in an On-Board ROM
  • Requires No External Components
  • Can Be Powered from Data Line; Power Supply Range is 3.0V to 5.5V
  • Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
  • ±0.5°C Accuracy from -10°C to +85°C
  • Thermometer Resolution is User Selectable from 9 to 12 Bits
  • Converts Temperature to 12-Bit Digital Word in 750ms (Max)
  • User-Definable Nonvolatile (NV) Alarm Settings
  • Alarm Search Command Identifies and Addresses Devices Whose Temperature is Outside Programmed Limits (Temperature Alarm Condition)
  • TO-92 Package Layout
  • Software Compatible with the DS1822


The DS18B20+ One Wire Digital Temperature Sensor and the Raspberry Pi

DS18B20 (333.51 KB) Download

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