Police Siren Circuit | Electronics Projects | 555 Timer Projects

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Hello , Today in this video tutorial i am going to show you Step By Step

How to make a police siren circuit using 555t timer

This Electronic Project is Very Simple Easy and DIY (Do It Yourself)

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https://www.youtube.com/channel/UCi6ZqREHDIx2xLrC...

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You Will Find Full Project Description and All Useful Material Including

• Circuit Diagram / Schematic

• Hardware / Component List

• Code

• Datasheet

• Pin Configuration Etc

AT ► https://circuit-diy.com/police-siren-circuit-elec...

Thanks for Watching It.

↪ For Any Difficulty Please Comment Below

Step 1: Useful Material

❖ Hardware Required ❖

► 555 Timer IC x2

► 9V Battery with Clip

► Breadboard

► Jumper Wires

► 10k ohm resistor x3

► 10uf capacitor x2

► 100nf ceremic capacitor x2

► 68k ohm resistor

► 1k ohm resistor

► speaker

❖ Circuit Diagram ❖

Link ► https://www.file-up.org/l6ewhfcz2mva

Step 2: Useful Steps

❖ Steps ❖

STEP # 1 ( Connect IC )

► Connect 555 timer IC on bread board

STEP # 2 ( Make power connections )

► Pin 8 of 555 Timer – To VCC of Battery

► Pin 1 of 555 Timer - To GND of Battery

► pin 4 to VCC

► pin 2 to pin 6

STEP # 3 ( Connect capacitor )

► Connect 10uf capacitor BTW pin 2 and GND

STEP # 4 ( Connect resistor #1 )

► Connect 1k ohm resistor BTW pin 7 and VCC

STEP # 5 ( Connect capacitor)

► Connect 100nf ceremic capacitor BTW pin 5 and GND

STEP # 6 ( Connect resistor #2 )

► Connect 68k ohm resistor BTW pin 7 and Pin 6

STEP # 7 ( Connect 555 timer Ic and make power connections )

► PIN 8 to VCC

► PIN 1 to GND

► Pin 4 to VCC

► Pin 2 to pin 6

STEP # 8 ( Connect Resistor # 3 )

► Connect 10k ohm resistor BTW pin 7 and pin 6 of second 555 timer

STEP # 9 ( Connect capacitor )

► Connect 100nf capacitor on pin 2 of second 555 timer to GND

STEP # 10 ( Connect resistor # 4 )

► Connect 10k ohm resistor BTW pin 7 and VCC of second 555 timer

STEP # 11 ( Connect Capacitor )

► Connect 10uf capacitor +ve on pin 3 of second 555 timer and -ve on x-rows of bread board

STEP # 12 ( Connect resistor # 5 )

► Connect 10k ohm resistor BTW pin 5 of secondry 555 timer to pin 3 of first 555 timer

STEP # 13 ( Connect speaker and testing )

► Connect +ve wire of spkr with the -ve terminal of the secondry 10uf capacitor and -ve wire to GND

► Connect battery and test

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