BURGLAR ALARM ON WINDOW GLASS BREAKING SUBMITTED BY

Project Objective To give an security to the large areas like a house, industries , border areas etc. By using simple transistor and 555 Timer The operation of the circuit depends on the astable mode of the 555 timer, which is driven by the emitter current coming from BC109C/ BC548 transistor(Because of high gain) To power the 555 oscillator in full operation of the series transistor

BLOCK DIAGRAM

HARD WARE EQUIPMENTS LED RESISTOR CAPACITOR 555TIMER BATTERY BC547

LED LEDs are semiconductor devices are made out of silicon When current passes through the LED, it emits photons as a byproduct. Normal light bulbs produce light by heating a metal filament until its white hot LEDs present many advantages over traditional light sources including lower energy consumption, longer lifetime, improved robustness, smaller size and faster switching

Resistor Resistor is a two terminal passive electrical component that implements electrical resistance as a circuit element. Resistors limits or regulate the flow of electrical current in an electronic circuit. Resistors are available in a range of different resistance values which are used as per the requirement.

Capacitor capacitor is a two terminal passive electrical component used to store the electrical energy electrostatically in an electrical field Capacitors are two types electrolytic and ceramic. Ceramic capacitors are unpolarized. These capacitors have negligible internal inductance or resistance. Electrolytic capacitors are polarized and if connected backwards are likely to explode.

PIN DIAGRAM OF 555 The 555 timer IC is a simple 8 pin DIL package IC. It can: be used as a monostable be used as an astable source or sink 100mA use supply voltages of 5v to 15v disrupt the power supply - use a decoupling capacitor!

555 TIMER The 555 Timer IC is an integrated circuit (chip) implementing a variety of timer and multivibrator applications. The original name was the SE555 (metal can)/NE555 (plastic DIP) and the part was described as "The IC Time Machine". Depending on the manufacturer, the standard 555 package includes over 20 transistors, 2 diodes and 15 resistorson a silicon chip installed in an 8-pin mini dual-in-line package (DIP-8)

BATTERY An electrical battery is a combination of one or more electrochemical cells, used to convert stored chemical energy into electrical energy. The battery has become a common power source for many household, robotics and industrial applications. Larger batteries provide standby power for telephone exchanges or computer data centers

BC547 The BC547 transistor is an NPN Epitaxial Silicon Transistor. The BC547 transistor is a general-purpose transistor in small plastic packages. It is used in general-purpose switching and amplification BC847/BC547 series 45 V, 100 mA NPN general-purpose transistors. Whenever base is high, then current starts flowing through base and emitter and after that only current will pass from collector to emitter  

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