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2.  Smart room is used mainly to reduce human efforts  Its also help to reduce the unnecessary power losses  Number of people in the hall is continuously monitoring and displaying on led panel  Electrical appliances controlled according to the peoples number  Main applications on halls and auditoriums

3.  Consists of two pair of IR transceivers  Number of humans count according to the IR radiation. If the first IR is cut, then count is incremented  if the second IR cut first then count decremented  The fan speed will increase automatically, if the number exceed 30  The half of the lights is remain off until the count exceed 30

4. DC MOTOR MOTOR DRIVER LED MCUIR TXR IR RXR

5.  Appliances controlled manually  Human effort is needed  Less efficient  Time consuming

6.  Fully automatic system.  Appliances automatically switched off  Appliances controlled by microcontroller  Unnecessary usage of appliance can be avoided

7.  Power efficient  No human efforts  Fully automatic system

8.  Cannot detect accurate value if we enter simultaneously.  Cannot use in heavily rushed areas

9.  Main applications on halls and auditoriums  Can be used where power consumption is an issue

10.  Mcu 89c51  L293d motor driver  Ir transmitter  Ir reciever  Dc motor and led for demo