Temperature Controlled Fan

Peeyush Pashine(2011H140033H)

Sri Krishna Yadav(2011H140031H)

Pravesh Tamrakar(2011H140036H)J. Ganesh(2011H140032H)

Code Enabling and disabling the entire

operation through INT1 external interrupt

Automatic and manual operationFor controlling the motor PWM

concept is used i.e. varying duty cycle generation according to temperature.

Simulationlets take the output of ADC as

02H=00000010BFrom ttable value of temperature is 26

degree centigrade, corresponding hex code for 7 segments are,6D,5F,respectively.Offdelay=16*5+6=86,ondelay=100-86=14.. Duty cycle= 14%

Now if temperature value is 48 centigrade, offdelay=10*5+2=52, on delay=100-52=48, duty cycle increased to 48%. Hence motor speed will increase.

Simulation contd…

Simulation (Multisim) contd…

Hardware Implementation

ApplicationIn appliances power consumption

can be controlled. Eg. Air conditioners

In computers, it can be use to cool the processor

In institutes, Firms industries etc..

ConclusionThe problem statement is

implemented

Hardware part is halfway implemented.

Through simulations and after running the code in IDE abstract is verified.

Queries?

Thank you !!!