Portable anti theft alarm used to protect your things on easy and smart way.

1. PORTABLE
ANTI THEFT
ALARAM
BY:

2. Security in everywhere

3. Items requires:
ICs
-LM741 general purpose opamp x1
Resistors
-680k x2
-1M x1
-27k x1
Transistors
2N2907 PNP transistor x1
piezo buzzer x1(this should be small)
IR photodiode x1
IR l.e.d x1
The following is only if you're soldering,
pcb board(small) x2
soldering lead
Dil socket x1

5. When you turn on both the circuits make
sure there is an object in between the
transmitter and receiver or else the alarm
will sound off.Set it up the circuits parallel
to each other like i have done in the video