How to make laser home security alarm || Top electronic project | Science project

[@DhananjayJeweller]

Can we use 2.2 ohm

[@peradoxadigaming]

Thank you so much. I have seen many videos, but their circuit didn't work. But your 🥹🥹🥹. Now, I can complete my school project. Thank you so much ❤❤❤

[@uniguideinfo]

Thanks for your appreciation

[@MuhammadKhalid-d5d]

Great! Excellent work!

[@uniguideinfo]

Thanks for your appreciation

[@muhammadisrar247]

Creative

[@saqibkhan-hn4rf]

Zaber10 sir

[@muhammadhamid-wd3ru]

Excellent 👍👍👍♥️♥️👌

[@maktummundenamani5385]

Bro how did u connected the battery connection i getting confused

[@uniguideinfo]

Connect negative of the battery with the negative of LED and positive with the last end of resister

[@maktummundenamani5385]

Can I use hi- watt battery pls reply

[@Antinon_Metal]

We have to use 1.2k ohm or 1.5k?

[@uniguideinfo]

You can also use 1.2k ohm instead of 1.5k ohm's but using 1.5k ohms will work better as compared to 1.2k ohm

[@Antinon_Metal]

Ty

[@Antinon_Metal]

Can you pls give the link for buying switches?

[@CRICKETFANPAGE_07]

Sir ya collector, emitter wala kuch samaj nhi aya ki joint kasa kara

[@NashrahCraftworld-w7l]

can we use glass instead of mirror??

[@uniguideinfo]

No, we can't

[@abubakaryousaf797]

Amazing❤

[@amirullahkhan9498]

Wow 👏

[@razaullah8343]

Amazing work 🙌👌

[@MuhammadUmair-dn5uk]

Amazing

[@ZKRKhan]

Excellent 👍

[@uniguideinfo]

Thank for your appreciation

[@MuhammadIsrar-ud2ks]

Great

[@Worldofantasy2010]

What if we use another resistor insted of 1.2k ohm's ❓

[@uniguideinfo]

You can also use 1k ohm's Resistor

[@Starmiga28]

Hello sir, laser voltage should be high or low like can u mention it and is it safe to use laser pointer as it cause Harm to skin so can we use and can this project be made before presention like one month before will it work after one month also? Kindly help as I have to work on it.

[@uniguideinfo]

Of course it is harmful for skin and eyes when the exposure is for longer period. It is only a module not a permanent solution for suchlike systems and the operational voltage for laser is about 3.7v

[@Starmiga28]

@@uniguideinfo thanks for ur reply

[@khaistashamir6542]

❤❤❤

[@anushka8331]

how did u make the connections of transistor to LDR, resistor and buzzer?

[@highlighting32]

Hii... ,, Bhai Maine circuit banaya alaram baj rha hai lekin problem yeh hai ki lazer padne ke baad bhi alaram off nhi ho rha hai ...koi solution btao solution

[@uniguideinfo]

You have to check your connections first and then focus the laser light exactly on LDR

[@DipaliSonavane-z7g]

Iske liye total kitna kharch aaega

[@KrishnaChaitanya-11]

Bro laser red or green what is the rangee

[@KrishnaChaitanya-11]

Replyyyy broooo

[@uniguideinfo]

Both red and green light can be used

[@KrishnaChaitanya-11]

Bro battery 3 .7 or any voltage we can usee

[@uniguideinfo]

For the given electronic components only 3.7v

[@HakerEdit7]

Laser security project ka Samaan lana : 1.5V buzzer 2.L D R (light dependent resister 3.LED (blue) 4.restister 1.2k omh's 5.BC 547 6.LITHIOM ION 3.7V BATTERY CELL 7.Switch 8.mirror pieces small 9.cardboard(gatta) Jorne ka Saman: 1.soldering iron 2.fevicol 3.colourful chart paper Bas itna hi Thanks!

[@uniguideinfo]

😊

[@VirajDixit-k8d]

Can I use 2n2222 transistor

[@spysenpai]

Hi bro listen, I have made it exactly like this, but when I am aiming the laser at the LDR, the LDR is not stopping, only the sound is becoming slow and that too a little, the sound is not stopping please tell me🙏

[@uniguideinfo]

When the laser is focused exactly on LDR it will stop

[@pro_gamersJimon]

​@@uniguideinfo same problem

[@AnayYadav-tj4sx]

Can i use 1 k

[@Pb25Jassigill]

bro led konsa hai aur ik side pr kya tourch hai kya

[@uniguideinfo]

5v simple green led aur torch nahi hay

[@satishkumarnagula5618]

How can we place the mirrors to reflection of light

[@uniguideinfo]

You can adhere it with glue on the surface

[@simpleeditz3516]

Can I use 9v batter in it

[@uniguideinfo]

Yes you can also use 9v battery but that time you should use a large resister with it

[@uniguideinfo]

@@alltimefun369 dear a fixed battery has fixed voltage ⚡ You can also use two ordinary battery cells of 1.5v

[@Nandram-k3y]

Sir transistor kon sa use kiya hai

[@Z.lecious]

Can i use 1l resistor plzz reply me

[@uniguideinfo]

1?

[@Z.lecious]

1k resistor

[@uniguideinfo]

@@Z.lecious yes you can use but battery voltage should be considered first

[@darshtyagi6660]

how can i connect the switch i have with the 3.7v battery cell? i have rocker switch btw

[@uniguideinfo]

Any switch you can connect but connect in positive terminal

[@8s7ismaths]

Where can you get all that stuff?

[@uniguideinfo]

you can get it from online store Amazon or Daraz etc

[@leeaarf6233]

How you soldering it bro???.I don't have any tools to do soldering...can u pls tell me how to do it??

[@uniguideinfo]

Brother you can also connect it with out soldering just like wire connection if you have the required components

[@leeaarf6233]

@@uniguideinfo ohk brother very thanks for replying 🙏

[@darshtyagi6660]

how do you connect all components together without soldering?

[@uniguideinfo]

just like we connect two wires but this will be little difficult

[@LsSoul]

But how ..by melting it or what?

[@darshtyagi6660]

hey when i bought the buzzer it came without those wires how am i suppose to do this now? also i dont have the switch which you used where can i find it pls help

[@uniguideinfo]

Dear I have also that buzzers but I had connected two smsll wires to it before the connections You can use any switch which you have. You can get these from online stores

[@darshtyagi6660]

@@uniguideinfo really? how can i connect the switch i have with the 3.7v battery cell? i have rocker switch btw

[@maktummundenamani5385]

Same problem😢

[@piyushkamble4225]

Power supply voltage?

[@uniguideinfo]

3.7v

[@maktummundenamani5385]

If i use wired 3.7v battery?

[@uniguideinfo]

You can use 3.7v battery

[@namjooniejoshislostairpods5295]

Bro can we use normal white LED?! Pls tell!

[@uniguideinfo]

Yes you can use any LED but you cannot used LED instead of laser to perform this

[@namjooniejoshislostairpods5295]

@@uniguideinfo and bro can we use 9v battery and if so how should we connect it to switch?!

[@uniguideinfo]

@@namjooniejoshislostairpods5295 yes you can also use 9v battery but then you have to use large resister to avoid the circuit from damaging

[@namjooniejoshislostairpods5295]

@@uniguideinfo can I use bc547?

[@uniguideinfo]

@@namjooniejoshislostairpods5295 of course you can use

[@MrHappyprince499]

Buzzer continously beep lazer light or LDR not working

[@uniguideinfo]

Check out all the connections again carefully

[@alltimefun369]

Can we use q volts battery and where do u attached black wires

[@uniguideinfo]

Are you mean 9v battery?

[@uniguideinfo]

1- If you mean 9v battery then, yes you can use 9v battery but that time a proper resistance should be considered 2- I have connected the black wire (‐ive) between ldr and negative of LED

[@alltimefun369]

@@uniguideinfo yes

[@alltimefun369]

@@uniguideinfo thank you but mine is still not working what should I do I have to submit it tomorrow

[@uniguideinfo]

@@alltimefun369 sorry for late reply Check all the connections again carefully and then try

[@ShastiPalanisamy]

Is it working in daytime? Is Sun light or other light does not affect it

[@uniguideinfo]

Maybe little effect by sunrays

[@salmanalfarisi2107]

Is there any other way tht i can join them with out tht silver material,

[@uniguideinfo]

Yes! you can connect the components just like connecting two metallic wires

[@Abhilasha_970]

Switch compulsory hai ????

[@uniguideinfo]

Yes compulsory hay

[@amansarswal99]

My model is working opposite 😕

[@Kaushilyasahu171]

Bazzer not stopping

[@uniguideinfo]

Focus the laser light exact on LDR then the buzzer will stop

[@Devanshtyagi91]

Can I use 1k ohm resistor

[@uniguideinfo]

Yes you can also use 1k ohm resister but battery voltage should be considered firstly

[@kinzaa62]

How much cost this project requires...??

[@uniguideinfo]

By using ordinary laser the total cost maybe rs.150

[@maktummundenamani5385]

Can i hi watt battery pls reply

[@uniguideinfo]

If you are using high voltage battery then it will damage your LED

[@kdrao9588]

Pure Ghar k liye kitne rs ka banega ye

[@uniguideinfo]

Bs seraf mirrors awar laser ka kharcha ayega baqi circuit pay apka rs 200 ka ayega

[@varuntiwari9790]

Bhaiya Bc547 transister ke alawa koi transistor use kar sakte hai ?

[@uniguideinfo]

Bhi app bc548 aur 2N2222A bi use kar saktay hay

[@SonuSaini-i2d]

Kar saktey hai

[@uniguideinfo]

@@SonuSaini-i2d yes

[@RupaDevi-q3f]

How much it's cost?

[@uniguideinfo]

Without laser may be Rs100

[@dasunnavoda]

Can I use 10k?

[@uniguideinfo]

Yes you can use

[@mohammadshuaib36]

Bhai eski synopsis send kardo plz bhai

[@uniguideinfo]

Video ke description may tassel mahmood hay

[@SonuSaini-i2d]

Bhai mare samge me nahi aa Raha hai

[@uniguideinfo]

See Description it contains details

[@ShowofIndia]

Sir it works na

[@uniguideinfo]

Yes of course it works

[@darshtyagi6660]

i did everything said in the video but it still does not work pls help

[@uniguideinfo]

Have you checked the all negative and positive terminals of the components also Check your battery before the connections

[@uniguideinfo]

Focus exactly the laser light on ldr

[@kanakkumawatart123]

Total budget project

[@uniguideinfo]

💲3.5 budget

[@jaydodiya1307]

30rs

[@uniguideinfo]

@@jaydodiya1307 may be rs 290 in ind rupees

[@jaydodiya1307]

@@uniguideinfo yes u r right bhut this is too much price for this project..in 290 rs i made this project 9 Times...

[@uniguideinfo]

@@jaydodiya1307 well done but I bought only the laser for Rs. 316 ind rupees

[@dasunnavoda]

I have a 10k

[@uniguideinfo]

You can also use this

[@maktummundenamani5385]

Pls reply bro pls

[@uniguideinfo]

I have replied

[@MUHAMMADUMAIR-gm1ou]

Excellent 👌