Temperature & Light Monitoring and Controlling using micro-controller
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Active In SP

Posts: 2,492
Joined: Mar 2010
22-12-2010, 01:39 PM

This project and implimentation is used to measure the various parameters like Temperature and Light and display them on a LCD. Temperature and light is sensed by respective sensors and sensor output is ampilfied and given to ADC. Microcontroller controlls these parameters and keep them at some predefined levels using realy interface. These relays can be connected to Fan/Heater. At the same time these values of temperature and light to a computer through serial port.


Description in detail:
This project and implimentation mainly consist of following blocks
1. Sensors: we are going to use temperature sensor and light sensor to sense temperature and light respectively. These sensors sense the parameters and gives corresponding voltage output
2. Amplifier: As the voltage output from the sensors is in miliVolts, it has to be increased to 0 to 5 volts range. We are going to use linear amplifier for this purpose.
3. ADC: The main part of our project and implimentation is microcontroller which reads only digital input (0V & 5V) But the output of Amplifier is in analog form, so it has to be converted into digital format, for this purpose we are going to use ADC to convert analog output from amplifier into the digital output to be given to microcontroller
4. Microcontroller: This is the CPU (central processing unit) of our project and implimentation. We are going to use microcontroller of 8051 family. The various functions of microcontroller are like
I. Reading the digital input from ADC which is derived from Temperature and Light sensor. II. Sending this data to LCD so that the person operating this project and implimentation should read the values of temperature and light. III. Controlling the parameters like Temperature, light be turning On/Off the respective relays IV. Sending the values of temperature and light to the computer using serial port
5. Relay: We have used 2 relays in our project and implimentation. First one will be turned on when the temperature falls below the desired value. And the second relay will be turned on when temperature reaches above the desired value. (e.g. if the desired value is 20 degree C, then Relay 1 will be turned on when temperature is 19 or below and Relay 2 will be turned on when temperature is 21 or above)
6. PC Interfacing: We are going to use max 232 IC for pc interfacing, the values of temperature and light will be sent to pc when the key is pressed

Application and Advantage:

1. This project and implimentation can be used in Mechanical companies to measure various parameters of operating machines like temperature and light.
2. Can be used in green houses to control the temperature and light for the proper growth of plants
3. Temperature monitoring and controlling action can be used in home or various halls like conference room, seminar and presentation hall to control the temperature of room

Future Development:

1. Monitor more parameters like Humidity, PH of soil, pressure, water level and at the same time control them
2. Send this data to a remote location using mobile or internet
3. Draw graphs of variations in these parameters using computer
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Active In SP

Posts: 1
Joined: Nov 2010
21-02-2011, 03:53 PM

can u send the programming codes for this project and implimentation
Active In SP

Posts: 1
Joined: Jul 2010
03-05-2011, 03:02 PM

please send the code for this project and implimentation

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