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
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!
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🙏
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.
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
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
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
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
Can we use 2.2 ohm
Bro how did u connected the battery connection i getting confused
Connect negative of the battery with the negative of LED and positive with the last end of resister
Can I use hi- watt battery pls reply
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 ❤❤❤
Thanks for your appreciation
Great! Excellent work!
Thanks for your appreciation
can we use glass instead of mirror??
No, we can't
We have to use 1.2k ohm or 1.5k?
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
Ty
Can you pls give the link for buying switches?
Sir ya collector, emitter wala kuch samaj nhi aya ki joint kasa kara
Zaber10 sir
Amazing work 🙌👌
Creative
Excellent 👍
Thank for your appreciation
Excellent 👍👍👍♥️♥️👌
What if we use another resistor insted of 1.2k ohm's ❓
You can also use 1k ohm's Resistor
Wow 👏
Amazing❤
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
You have to check your connections first and then focus the laser light exactly on LDR
Bro battery 3 .7 or any voltage we can usee
For the given electronic components only 3.7v
Amazing
Great
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!
😊
Bro laser red or green what is the rangee
Replyyyy broooo
Both red and green light can be used
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🙏
When the laser is focused exactly on LDR it will stop
@@uniguideinfo same problem
Buzzer continously beep lazer light or LDR not working
Check out all the connections again carefully
bro led konsa hai
aur ik side pr kya tourch hai kya
5v simple green led aur torch nahi hay
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.
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
@@uniguideinfo thanks for ur reply
Can I use 9v batter in it
Yes you can also use 9v battery but that time you should use a large resister with it
@@alltimefun369 dear a fixed battery has fixed voltage ⚡
You can also use two ordinary battery cells of 1.5v
how did u make the connections of transistor to LDR, resistor and buzzer?
Iske liye total kitna kharch aaega
How can we place the mirrors to reflection of light
You can adhere it with glue on the surface
How you soldering it bro???.I don't have any tools to do soldering...can u pls tell me how to do it??
Brother you can also connect it with out soldering just like wire connection if you have the required components
@@uniguideinfo ohk brother very thanks for replying 🙏
Where can you get all that stuff?
you can get it from online store
Amazon or Daraz etc
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
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
@@uniguideinfo really? how can i connect the switch i have with the 3.7v battery cell? i have rocker switch btw
Same problem😢
how can i connect the switch i have with the 3.7v battery cell? i have rocker switch btw
Any switch you can connect but connect in positive terminal
Can I use 1k ohm resistor
Yes you can also use 1k ohm resister but battery voltage should be considered firstly
Sir transistor kon sa use kiya hai
My model is working opposite 😕
❤❤❤
Can i use 1l resistor plzz reply me
1?
1k resistor
@@Z.lecious yes you can use but battery voltage should be considered first
Bro can we use normal white LED?! Pls tell!
Yes you can use any LED but you cannot used LED instead of laser to perform this
@@uniguideinfo and bro can we use 9v battery and if so how should we connect it to switch?!
@@namjooniejoshislostairpods5295 yes you can also use 9v battery but then you have to use large resister to avoid the circuit from damaging
@@uniguideinfo can I use bc547?
@@namjooniejoshislostairpods5295 of course you can use
how do you connect all components together without soldering?
just like we connect two wires but this will be little difficult
But how ..by melting it or what?
If i use wired 3.7v battery?
You can use 3.7v battery
Power supply voltage?
3.7v
Switch compulsory hai ????
Yes compulsory hay
Can i use 1 k
Can I use 2n2222 transistor
Can we use q volts battery and where do u attached black wires
Are you mean 9v battery?
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
@@uniguideinfo yes
@@uniguideinfo thank you but mine is still not working what should I do I have to submit it tomorrow
@@alltimefun369 sorry for late reply
Check all the connections again carefully and then try
How much cost this project requires...??
By using ordinary laser the total cost maybe rs.150
Can i hi watt battery pls reply
If you are using high voltage battery then it will damage your LED
Bazzer not stopping
Focus the laser light exact on LDR then the buzzer will stop
Pure Ghar k liye kitne rs ka banega ye
Bs seraf mirrors awar laser ka kharcha ayega baqi circuit pay apka rs 200 ka ayega
How much it's cost?
Without laser may be Rs100
Is it working in daytime?
Is Sun light or other light does not affect it
Maybe little effect by sunrays
Is there any other way tht i can join them with out tht silver material,
Yes! you can connect the components just like connecting two metallic wires
Bhai eski synopsis send kardo plz bhai
Video ke description may tassel mahmood hay
Bhaiya Bc547 transister ke alawa koi transistor use kar sakte hai ?
Bhi app bc548 aur 2N2222A bi use kar saktay hay
Kar saktey hai
@@SonuSaini-i2d yes
i did everything said in the video but it still does not work pls help
Have you checked the all negative and positive terminals of the components also Check your battery before the connections
Focus exactly the laser light on ldr
Can I use 10k?
Yes you can use
Sir it works na
Yes of course it works
Total budget project
💲3.5 budget
30rs
@@jaydodiya1307 may be rs 290 in ind rupees
@@uniguideinfo yes u r right bhut this is too much price for this project..in 290 rs i made this project 9 Times...
@@jaydodiya1307 well done but I bought only the laser for Rs. 316 ind rupees
Bhai mare samge me nahi aa Raha hai
See Description it contains details
I have a 10k
You can also use this
Pls reply bro pls
I have replied
Excellent 👌