BEACON FLASHER USING MICROCONTROLLER
ABSTRACT
This project is designed to provide
flashing lamp simulating a beacon light generally used in shipyards, sea shores
etc. It is also used in middle of the sea to warn ships about the hidden rocks.
A programmable
microcontroller from 8051 family is engaged to provide flashing light at
periodical intervals as per the practice followed at sea shores, shipyards etc.
A low voltage lamp of 12V is driven by a power MOSFET in PWM mode which is
derived from a microcontroller. The duty cycle of the PWM has to be changed
depending on the type of application. As the controller gives only 5v drive, it
is not possible for the MOSFET to be reliably switched ON at that voltage. An
interfacing transistor is used between the controller output and the MOSFET for
driving the same.
Further the
project can be enhanced by using a high power 230V lamp in combination with
solid state switching for better visibility.
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