LASER SECURITY ALARM(LOCKED) using 555 and UM3561

Hello Friends, In this video we will see how to make a Laser Security Alarm using timer IC 555 and Siren Tone Generator UM3561.
This Project is Tripwire type Laser Security Alarm. Once laser path is interrupted, circuit will raise the alarm and this alarm will not stop until alarm-reset button is pressed.
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Component required:-
1) Pref Board(Dot PCB, ZeroPCB, Vero board)
2)IC
:-555
:-UM3561
3)Resistor
470 ohm x 1
1K x 3
220k x 1
560K x 1
4)Variable Resistor (rotate this preset to adjust the light sensitivity)
Preset- 10k (code for this preset is 103)
5) LDR
6)Capacitor
0.01uF (code for this capacitor is 103)
7)Transistor
2n2222
8) LED
9) Zener Diode
3.3v
10) Push to ON Switch
(Microswitch, Tactile Push Button Switch, Momentary 4pin Push Button Switch, Momentary 2pin Push Button Switch )
[In this circuit it is used to RESET Alarm]
11)IC Base
8Pin x 2
12)9v Battery connector
13) Speaker 8 Ohm
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Circuit Diagram:-
drive.google.com/file/d/121ZU...
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Thank You for watching;
Hope you like this video
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Have a Beautiful day.
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[@tusharhansda7272]

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[@marvinsalipot04]

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