Home automation through pc

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					                                   ABSTRACT

       HOME AUTOMATION THROUGH PC

PC based electrical appliances control is an interesting PC based project, mainly
useful for industrial applications, home automation, and supervisory control
applications. This project gives exact concept of interfacing a high voltage electrical
device or DC / AC motor to high sensitive personal computer system. This project is
the first step to design of PC based industrial automation projects.


We are using the rs232 as the communication medium between pc and controller.


We are controlling the devices like light and fan and etc by sending signals from the
pc to controller.


        This project uses regulated 5V, 500mA power supply. 7805 three terminal
voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used
to rectify the ac out put of secondary of 230/12V step down transformer.




# 301,Sree Apartments, Srinivasa Colony, Madhura Nagar, Behind Ragava Hospital,
            Ameerpet, Hyderabad, Visit Us @ www.mlteleservices.org
                   Contact Us @ 040-40209027/9492260824
                     fan



                                    8                   MAX232
                    Light           9
                                    C
                                    5
                                    1




                                                          PC




                                  Crystal




 Step          Bridge         Filter
 down         Rectifier       Circuit       Regulator
  T/F                                                      Power supply to all sections




# 301,Sree Apartments, Srinivasa Colony, Madhura Nagar, Behind Ragava Hospital,
            Ameerpet, Hyderabad, Visit Us @ www.mlteleservices.org
                   Contact Us @ 040-40209027/9492260824
# 301,Sree Apartments, Srinivasa Colony, Madhura Nagar, Behind Ragava Hospital,
            Ameerpet, Hyderabad, Visit Us @ www.mlteleservices.org
                   Contact Us @ 040-40209027/9492260824

				
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