Police Siren Circuit on Breadboard | 555 Timer Project #14

[@shvideo1]

What a great circuit. I am so glad you're back producing these great quality videos on simple and very educational electronic circuits. You're one of the best all around. I have seen a lot of channels - with voice, without a voice (even though the microphone is on), with very cool or bad music, with or without schematics. Even people with great ideas that cram multiple "inventions" with no explanation or schematic, simply having people watch them hard-wire their components - even their rechargeable batteries!! What a waste. Wish you great health. Keep inventing and keep up the great quality.

[@Mr_Graphic]

The Best, i like your videos. Keep upload another creative videos brother 👍🏻

[@Gary-vo9rm]

Hey man, you've got some really cool circuits. Thanks!

[@aashirsiddiqui5203]

Can you please make a video where both the police flashing light and siren sound are combined into a single breadboard circuit?

[@stevenA44]

LOL I've seen a few of your 555 timer videos, but I think this is my favorite...so far. This is pretty cool. I just wonder how it would sound connected to a small PA speaker. I may have to try this. I have a BUNCH of these little 555 timer ICs.

[@yashnarvariya4725]

Hey any idea how to club siren and police light together to make one

[@stevenA44]

@@yashnarvariya4725 I don't know myself, but I'm sure the Elonics could tell you.

[@deniskhorovodov7176]

Thank you for the video, it's just what I was looking for! Could you please advise me what component values to change, to get frequency variation between 20 and 27 kHz? Also I'd like to attach a mosfet to the output to commutate 12V. Could you help me with these two tasks, please? Thank you in advance!

[@lohanmuthu6341]

great explanation... thank you...

[@kevfrets]

Excellent!!

[@marizacordova2451]

can i put a switch here?

[@kdt85]

Is this a circuit of your own design?

[@stephenedwards3348]

I built this circuit and get an old school cell phone ring tone. Just trying to figure it out. Lol

[@avdaak]

Why couldn't this circuit work without last capacitor???

[@ابومحمدالميساني-ر2ج]

very good 👍

[@totallyrandom4664]

Good👍

[@aashirsiddiqui5203]

For me the speaker varies its sound only once instead of continuously varying its sound.

[@creativegamer9919]

Just like it happened to me, if you find any solution please let me know

[@creativegamer9919]

If I find a solution I will also let you know

[@aashirsiddiqui5203]

​@@creativegamer9919I think it's the fault with the 555 timer IC.

[@kdt85]

The capacitor value in the first 555 is responsible for the siren speen, it might just be taking a very very long time to change, I thought the same but I managed to get it working

[@creativegamer9919]

@@kdt85 which one of that capacitor 100uf 1000uf i tried changing 1000uf but it not worked for me and how much capacitor value you used

[@canpalawan]

done it, great..

[@electronic7979]

Nice

[@n155_mohammadsayeed7]

Which capacitor voltage do you used 50,35 or 16

[@AS-wi6hr]

Has anyone tried to replicate this with Tinkercad circuits? I tried and it makes some noises but the noises is no way close to real thing (Tinkercad doesn't have a speaker, but it has a piezo) ... I want to know if I wired up something wrong or this circuit is too 'analog'/'real world' for Tinkercad to simulate.

[@rajhewagama3349]

What is the maximum current supply for 555 timer is it less than 150 milli ampers?

[@Electronicsjaswant]

how much supply to give

[@deepikasetti7554]

Sir suppose we use 6 ohms resistor then can u tell me how much watts speaker

[@Ravikumar-vu1ie]

Not working with 4ohm speaker

[@spka386]

What's the source voltage of this ckt 9v or 12 v

[@night_guy6668]

What is the voltage rating of the 1000 uf capacitor

[@dxgh2033]

Hello,this diagrama doesn t work on proteus...or i make something wrong Can anyone say to me if this diagrama work in proteus pls??

[@dxgh2033]

Please respond i like all your videos

[@sanjaycolaco]

Yes, it is true. This schematic doesn't simulate correctly in proteus. The speaker doesn't produce any sound.

[@sanjaycolaco]

This circuit correctly simulates in proteus: kzbin.info/www/bejne/qIXOqZZtd8xnsJI

[@yashnarvariya4725]

@@sanjaycolaco hello sir please tell me how to make siren and police light together

[@sanjaycolaco]

@@yashnarvariya4725 Yash, I am just a hobbyist like yourself. Follow this schematic on your breadboard and it should work.

[@TastePolice378]

we used the same speaker in class lmao

[@karthikad3703]

good

[@paramatinnovation5539]

circuit don't works

[@srimathi4222]

Alaram sound kekala

[@angelgabrielsotogzz8747]

my teacher only uses your account to "create" projects

[@venugopal701]

What is the watt of the speaker

[@venugopal701]

Plz tell that inn all your videos sir, plz

[@elonics]

Okay. I used a 0.25Watt 8Ohm speaker. Maximum this circuit can drive is about 0.5Watts. For anything above it, you need to use an amplifier.