Automatic Temperature Detecting System
AUTOMATIC TEMPERATURE DETECTING SYSTEM
Author: NETAJI.PANIGRAHI B.Tech e.mail:netajipanigrahi@gmail.com
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CHAPTER 1 INTRODUCTION
The Automatic Temperature Detecting System is an embedded system application which has the capability of detecting temperature of the environment. The behavior of the system is based on sensor. Based on sensing information the microcontroller will respond. This system works on 5V power supply. Here Microcontroller plays a major role which takes inputs from sensor, process the information and give outputs to LCD. There is only one sensor i.e, Temperature sensor is embedded in the system thereby the microcontroller will respond to input sensors information. Microcontroller works only digital data, but temperature sensor gives analog data, so we need analog to digital convertor. When the system is powered-on, it senses the temperature by using temperature sensor, then microcontroller will displays on 16X2 LCD. Power is provided to the microcontroller by means of voltage regulator (+5v). Corresponding LED is glowed when there is excess temperature.
1.1 BLOCK DIAGRAM:
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Figure1.1 Block diagram of Automatic Temperature Detecting system
In this block diagram of Automatic Temperature Detecting system the 5v dc supply is used for each IC for working because every digital logic circuit requires 5v power supply to work .The main blocks o f Automatic Temperature Detecting system are:
1.2. Block Diagram Description:
1.2.1. Temperature Sensor Module:
This Temperature sensor is placed at the starting of the circuit, it detects the temperature and gives the same as the input to ADC.
1.2.2. Analog to Digital Convertor:
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The Analog to Digital Convertor is used for interface between the sensor and the microcontroller, because the microcontroller works in only digital data but sensor gives analog output .In this project we are using 0804IC ADC.
1.2.3. Microcontroller:
In this project the microcontroller is used to
Author: NETAJI.PANIGRAHI B.Tech e.mail:netajipanigrahi@gmail.com
1
CHAPTER 1 INTRODUCTION
The Automatic Temperature Detecting System is an embedded system application which has the capability of detecting temperature of the environment. The behavior of the system is based on sensor. Based on sensing information the microcontroller will respond. This system works on 5V power supply. Here Microcontroller plays a major role which takes inputs from sensor, process the information and give outputs to LCD. There is only one sensor i.e, Temperature sensor is embedded in the system thereby the microcontroller will respond to input sensors information. Microcontroller works only digital data, but temperature sensor gives analog data, so we need analog to digital convertor. When the system is powered-on, it senses the temperature by using temperature sensor, then microcontroller will displays on 16X2 LCD. Power is provided to the microcontroller by means of voltage regulator (+5v). Corresponding LED is glowed when there is excess temperature.
1.1 BLOCK DIAGRAM:
2
Figure1.1 Block diagram of Automatic Temperature Detecting system
In this block diagram of Automatic Temperature Detecting system the 5v dc supply is used for each IC for working because every digital logic circuit requires 5v power supply to work .The main blocks o f Automatic Temperature Detecting system are:
1.2. Block Diagram Description:
1.2.1. Temperature Sensor Module:
This Temperature sensor is placed at the starting of the circuit, it detects the temperature and gives the same as the input to ADC.
1.2.2. Analog to Digital Convertor:
3
The Analog to Digital Convertor is used for interface between the sensor and the microcontroller, because the microcontroller works in only digital data but sensor gives analog output .In this project we are using 0804IC ADC.
1.2.3. Microcontroller:
In this project the microcontroller is used to
Bibliography: 1. The 8051 microcontroller and embedded systems by Muhammad Ali Mazidi And Janice Gillespie Mazaidi tenth edition. Pearson education. 2. The 8051 microcontroller architecture, programming, and applications by Kenneth J. Ayala, second edition, Penram publications. Websites: 3. www.atmel.com. 4. www.datasheetcatalog.com. 5. www.electronics.com 6. www.national semiconductor.com ……………………………………………netajipanigrahi@gmail.com 55