Waterproof DS18B20 Dallas 1 wire digital temperature sensor and resistor

Waterproof DS18B20 Dallas 1 wire digital temperature sensor and resistor

$5.95 $2.95 Sale

Includes:

  • DS18B20 sensor
  • 4.7k resistor

DESCRIPTION

This is a highly accurate and reliable waterproof temperature sensor for the Raspberry Pi or WiFi Controller with no sensor. The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of -55°C to +125°C and is accurate to ±0.5°C over the range of -10°C to +85°C. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply.

Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.

 

Cable specs:

  • Stainless steel tube 6mm diameter by 30mm long
  • Cable is 36"/91cm or 72"/195cm long, 4mm diameter
  • Contains DS18B20 temperature sensor
  • If your sensor has four wires - Red connects to 3-5V, Black connects to ground and White is data. The copper wire is soldered to the wire shielding
  • If your sensor has three wires - Red connects to 3-5V, Blue/Black connects to ground and Yellow/White is data

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
  • Multidrop Capability Simplifies Distributed Temperature-Sensing Applications
  • 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)

Tutorials:

Temperature Tutorial for Raspberry Pi

Datasheet: http://datasheets.maximintegrated.com/en/ds/DS18B20.pdf

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