How to make laser home security alarm || Top electronic project | Science project
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- How to make laser home security alarm || Top electronic project | Science school project
In this video we have made a laser security system with details by using a simple procedure.
Requirements:
Transistor ( bc547),
Buzzer ( 5 V ),
Resister ( 1.5 k ohm ),
LED,
LDR,
3.7 V battery cell,
Laser light
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learn the science and put it into practice!! because to operate a machinery it is not enough to read in a book only but practical practice is required.
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Amazing work 🙌👌
Excellent 👌
Creative
how did u make the connections of transistor to LDR, resistor and buzzer?
Wow 👏
Zaber10 sir
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
Great
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
Amazing
Can I use 10k?
Yes you can use
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
Great! Excellent work!
Thanks for your appreciation
Amazing❤
Can I use 1k ohm resistor
Yes you can also use 1k ohm resister but battery voltage should be considered firstly
❤❤❤
Excellent 👍👍👍♥️♥️👌
Is it working in daytime?
Is Sun light or other light does not affect it
Maybe little effect by sunrays
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
bro led konsa hai
aur ik side pr kya tourch hai kya
5v simple green led aur torch nahi hay
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 🙏
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 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 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?
Where can you get all that stuff?
you can get it from online store
Amazon or Daraz etc
How can we place the mirrors to reflection of light
You can adhere it with glue on the surface
If i use wired 3.7v battery?
You can use 3.7v battery
Switch compulsory hai ????
Yes compulsory hay
How much cost this project requires...??
By using ordinary laser the total cost maybe rs.150
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
Power supply voltage?
3.7v
Bazzer not stopping
Focus the laser light exact on LDR then the buzzer will stop
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😢
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
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
Can i use 1l resistor plzz reply me
1?
1k resistor
@@user-mn6ip2bg3k yes you can use but battery voltage should be considered first
Can i hi watt battery pls reply
If you are using high voltage battery then it will damage your LED
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
Pls reply bro pls
I have replied
Bhaiya Bc547 transister ke alawa koi transistor use kar sakte hai ?
Bhi app bc548 aur 2N2222A bi use kar saktay hay
Kar saktey hai
@@user-tf5qr8by2s yes
Sir it works na
Yes of course it works
Bhai eski synopsis send kardo plz bhai
Video ke description may tassel mahmood hay
How much it's cost?
Without laser may be Rs100
Bhai mare samge me nahi aa Raha hai
See Description it contains details
I have a 10k
You can also use this
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
Excellent 👍
Thank for your appreciation