Design And Construction Of A Digital Thermometer Using Arduino And LM35 Temperature Sensor

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Overview

Thermometers are useful apparatus being used since long time for temperature measurement. In this project an Arduino based digital thermometer to display the current ambient temperature and temperature changes on a LCD unit in real time was made. It can be deployed in houses, offices, industries etc. to measure the temperature. This project is based on Arduino which communicates here with LM35 temperature sensor and a 16×2 display unit. We can divide this arduino based thermometer into three sections – The first senses the temperature by using temperature sensor LM 35, second section converts the temperature value into a suitable numbers in Celsius scale which is done by Arduino, and last part of system displays temperature on LCD.

TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWELDGEMENT

ABSTRCT

TABLE OF CONTENT

CHAPTER ONE

INTRODUCTION
OBJECTIVE OF THE STUDY
SIGNIFICANCE OF THE STUDY
APPLICATION OF THE PROJECT
TYPES OF DIGITAL THERMOMETER
PROJECT ORGANISATION

CHAPTER TWO

LITERATURE REVIEW

2.0     LITERATURE REVIEW
2.1     HISTORICAL BACKGROUND ANDDEVELOPMENT OF THE STUDY
2.2     PHYSICAL PRINCIPLES OF THERMOMETRY
2.3     THERMOMETRIC MATERIALS
2.4     PRIMARY AND SECONDARY THERMOMETERS
2.5     CALIBRATION OF THERMOMETERS
2.6     REVIEW OF TWO KINDS OF CONVENTIONAL THERMOMETERS

CHAPTER THREE

3.0 METHODOLOGY

3.1 SYSTEM BLOCK DIAGRAM
3.2 COMPONENTS OF THE SYSTEM

3.3 SYSTEM CIRCUIT DIAGRAM

3.4 SYSTEM WORKING PRINCIPLE

3.5 POWER SUPPLY UNIT

CHAPTER FOUR

4.0 CONSTRUCTION PROCEDURE AND TESTING

4.1 CASING AND PACKAGING

4.2 ASSEMBLING OF SECTIONS

4.3 TESTING OF SYSTEM OPERATION

CHAPTER FIVE

5.1 CONCLUSIONS

5.2 RECOMMENDATION

5.3 REFERENCES

SYSTEM BLOCK DIAGRAM

Before carrying out any project, the block diagram must be drawn and fully understood. Block diagram gives a pictorial understanding of any work. The block diagram of the system is as below: