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DS18B20 Temperature Sensor Module

User’s Manual V1.0

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Contents 1.

Introduction ............................................................................................................................. 3

2.

Pin Definitions.......................................................................................................................... 4

3.

Sample Hardware Installation and Sample Source SCode ...................................................... 5

4.

Result ....................................................................................................................................... 6

5.

Warranty .................................................................................................................................. 7

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1. Introduction DS18B20 Temperature Sensor Module provides 9 to 12–bit centigrade 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. Specification:    

Operating Voltage : 3.0 - 5 VDC Unique 1-Wire interface requires only one port pin for communication Measured temperature Range: –55°C to +125°C (–67°F to +257°F) Accuracy: ±0.5°C accuracy from –10°C to +85°C

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2. Pin Definitions

DATA VCC GND

Pin DAT

Description One Wire Communication

Function Able to transfer clock and data. The transferring of data is bidirectional.  Transfer the temperature and humidity data to microcontroller.

VCC

+3.3V ~ +5V

Connect to +3.3V ~ +5V

GND

Ground

Connect to Ground

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3. Sample Hardware Installation and Sample Source Code Diagram below shows the hardware connection between DS18B20 temperature sensor and Arduino UNO. Besides Arduino, it may interface with any microcontroller such as PIC and etc.   

DAT  Arduino Pin 2 VCC  Arduino 5V GND  Arduino GND

To obtain the result, please get the sample source code and burn it into Arduino.

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4. Result The temperature increased when the finger was touching on DS18B20 Temperature Sensor.

The temperature decreased when the finger released from touching on DS18B20 Temperature Sensor.

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5. Warranty    

Product warranty is valid for 6 months. Warranty only applies to manufacturing defect. Damaged caused by misuse is not covered under warranty. Warranty does not cover shipping cost for both ways.

Prepared by Mybotic 4, Jalan Universiti 3, Taman Universiti, 86400, Parit Raja, Johor Tel: +6016-7170703 / +6018-9510703 URL : www.mybotic.com.my Email : [email protected] [email protected] 7|Page