DIY Smoke Detector using MQ2 Module | Electronic project For Students

In this video, We are Designing a smoke detector alarm on a zero PCB board. Hope you will like my hard work.
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Music by: / ikson

[@dilipchinchwadkar4521]

Thanks a lot ....Very Easy & simple Guidelined by your Hindi Language

[@VinayYadav_RaoShab]

The project is working 🔥🔥

[@VinayYadav_RaoShab]

How much area can this sensor cover..
Can 1 sensor work for 1 room?
Or we need many sensors ..

[@ajmalsudhir8839]

🙌

[@alyabtrsyia]

hi, if use MQ-135 sensor it is still use the same circuit like this?

[@technicalhut2085]

Yes alya

[@deathbydagers]

Project is working but buzzer not making sound/Very light sound. Tried different buzzers aswell.
How to fix??

[@technicalhut2085]

Change your mq2 module

[@mohamedgoda3810]

When i finished
The circuit always worked
Why??

[@technicalhut2085]

Kindly set the sensitivity properly of sensor using blue pot. You will have to adjust the sensitivity to run it.
Then it will run properly

[@mohamedgoda3810]

Technical Hut okay thank u

[@mohamedgoda3810]

Voltage for buzzer
What???

[@mysticizing_cosmos]

Same here, decreased the sensitivity but it was still on

[@pradeepgupta1190]

Kya yah LPG gas ko detect kar sakta h.....

[@technicalhut2085]

Yes kr skta h

[@pradeepgupta1190]

But mera mq2 sensor LPG detect nahi karta h only smoke detect karta h ... Give me solution

[@mysticizing_cosmos]

decreased the sensitivity but it was still on

[@technicalhut2085]

So rotate more

[@javedmajboor706]

Alrm kitne volt pe chalta hai

[@technicalhut2085]

9v

[@-swapnilkawathe]

It's not working

[@technicalhut2085]

What problem you are facing??

[@technicalhut2085]

You can also purchase working project from the link

[@-swapnilkawathe]

@@technicalhut2085 after completion of connection project will not run.

[@R.K.Musics]

this project is not working

[@technicalhut2085]

You can ready working model from the description link

[@technicalhut2085]

Purchase**