How to make a Laser Tripwire Alarm from scratch | Electronics DIY
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- Опубликовано: 10 июл 2020
- Hey friends! In this video, you learn how to make an anti-burglar laser tripwire alarm from scratch. I find this alarm that I made, to be quite practical for alerting you or someone nearby when a person breaks into a home. The best place to stick the alarm onto is behind a window, doorframe, or even into a couple of useless wall sockets in a room that face each other.
Yes, I came up with this circuit myself :)
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💾 Circuit diagram: drive.google.com/file/d/1qzEs...
📁 PCB Gerber file: drive.google.com/file/d/1Tsl9...
🧵🔧📌 Components and parts needed for this project:
Perf Boards, Pin headers, and Connectors Kit - amzn.to/3AkySUw
(x2) NE555 Chip - amzn.to/3W8BYmG
(x1) LM358 Chip - amzn.to/3GEPdph
(x1) BC547 NPN Transistor - amzn.to/3XbBWeQ
(x1) 10k Potentiometer - amzn.to/3QEGuIb
(x1) 100nf Ceramic Capacitor - amzn.to/3Xxdogn
(x1) 1uf 50v Capacitor (in kit) - amzn.to/3H2ru3F
(x1) 220-ohm Resistor (in kit) - amzn.to/3CHpYBF
(x3) 10k Resistor (found in kit)
(x1) 100k Resistor (found in kit)
(x1) Photoresistor (LDR) - amzn.to/3kjVyyM
(x1) Buzzer - amzn.to/3IMqaTX
(x1) Laser module/Laser diode - amzn.to/3iCw2EB
(x2) Switch (SPST Rocker) - amzn.to/3GZXWUp
(x1) Reset button switch - amzn.to/3W3QCeM
(x2) 18650 3.7v Battery - amzn.to/3XwzfnR
(x1) AA battery tray - amzn.to/3k3oif9
(x2) AA batteries - amzn.to/3XthyWl
Electrical wires (24AWG) - amzn.to/3GIeRK1
Double sided tape or hot glue - amzn.to/3XuWfDT
🪛🔧🔨 Tools and extra supplies I use:
➡️ Soldering Iron (Kit) - amzn.to/3X6L5Wq
➡️ Hot Glue Gun - amzn.to/3E6trJG
➡️ Box cutter/Utility knife - amzn.to/3hP9MGI
➡️ X-Acto Hobby Knife - amzn.to/3XbL7ML
➡️ Cutting Matt (Green) - amzn.to/3gil71A
➡️ Needle-nose Pliers - amzn.to/3ECTKc3
➡️ Wire Cutters for Electronics - amzn.to/3ECut1B
➡️ Wire-stripping tool (Automatic) - amzn.to/3hQsMVD
➡️ Heat-shrink Tube Kit - amzn.to/3AksTPE
➡️ Jumper Wire Kit - amzn.to/3UGhMZq
➡️ Breadboard for Prototyping - amzn.to/3GlF4ze
➡️ Superglue - amzn.to/3VylTXX
➡️ Electrical Tape - amzn.to/3Vz6oOJ
🎵 Music Credits:
Far Away - YT Audio Library
The Bone Train - YT Audio Library
Niềm Nở Năm Mươi
#tripwirealarm #electronics #lasers 
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Hey everyone! The comment section has finally been re-enabled over the whole channel after 2 years by RUclips themselves who shut it down in the first place. Glad to be in touch with my viewers again! :)
This laser alarm system is a cool thing, but it would be nice if you recorded how you build it on a breadboard because some people don't have the ability to solder. I would be very grateful to you for showing how to build this alarm system on a breadboard step by step, it's a brilliant idea :)
I will consider your tip for similar future projects like the laser alarm. Cheers.
I am in the planning stages of building something like this and your video gives me a great starting point. I want something that can be redirected with mirrors for a single beam to cover a 1000ft² area. I am trying to figure out a way to wire it in to a relay that allows a timer to be triggered for the siren inside the house. Internet connectivity would be another goal, as i would like to recieve notifications of breach via text or pop up on a mobile device. Sounds like a lot but, i know its possible with some determination. Thanks for the ideas.
Nice .
Looks interesting just need to learn where to put all the parts exactly.
very interesting, thank you for the tutorial😁🙏
My pleasure 😊
you deserve more likes!!!
I'm watching your videos since 2019
Cool! Thanks for being an active viewer on my RUclips channel, glad you're finally able to comment here now! :D
Great design, perfectly annoying to pesky burglars. Could you tell me how to get the schematic for this project? The You Tube I watched did not have access to sub titles or captions. You mentioned at the end of the video that the diagram was "in the description below", but I wasn't able to view it. Thanks, keep these videos coming.
Hi. Thanks for your comment!
The diagram is linked in the description via a Google drive link which you should see.
Regards,
Max
I made it and it works awesome thanks
But I have a doubt if I want to increase its accuracy means I want to make it more sensible if insect fly through it then also it should work what shall I do?
And also please tell woeking volt and amp
Hello, May I ask how does each components like 555 timer, op-amp transistor works or functions in the circuit?
Hi there. I cannot explain that simply through text. However, there are plenty of videos online you should check out demonstrating the operation of these type of ICs. Cheers.
Great! I wont to make something like this on 20 meters distance to secure my motorcycle. Is this passible with that distance?
With precise adjustments using bolts to secure the modules, yes, I believe it's possible. The red dot also widens by quite a bit at that distance, it should hit the sensor 👍🏻
Can anyone explain why does he use ICs where we just need transistor LDR and buzzer
With the use of ICs, you have more accurate detection, sensitivity control between the threshold values, and the oscillating effect to make the buzzer beep on repeat.
Bro I tried many times to look at the video and understand connections but I couldn't would you please upload any other file not like which in the description because there are many things different than video
The diagram is accurate to what I showed in the video. Check every connection with your multimeter. Your hardware and components may also differ from mine. There are many factors.
All I can suggest is to check your connections.
Is it possible to instead of a buzzer, connect it to an rpi that runs a command on my phone or computer?
Yes, with the given signal after being triggered, it's possible.
how long does will the whole system last if left on? all night, a few hours, several minutes?
and how hard would it be to put integrate a solar charging system?
Hi there. The system lasts around 2-3 days for me. A solar system could be ideal for outdoor securing applications or you could instead make the two ends USB powered and plugged in somewhere. Cheers.
Can i get a picture of the wiring on a breadboard if possible
I don't have that, sorry!
Is it possible to swap the buzzer for a Servo?
Yes however, it would get more complex. You'd either need an extended circuitry to drive the servo or just a simple Arduino board that takes the pulsating signal and gives an output to move the servo so many degrees. The second option may suit best.
what PCB board size do you use
3x7cm
@@MaxImagination Thanks
Instead of the buzzer, can I swap it with a neopixel jewel?
Yes, it should work.
Hi, may I know how do you charge those Li-ion batteries?
Hi, using one of these charging boards: amzn.to/3XHVmJB
If it's a 2S pack like in the video, then I advise you use one of these BMS chargers with a 3-wire cable: amzn.to/3PO1Ww4
Why did you use two NE555 Chips
One for the main circuit tripping and the other for making the repetitive beep that's outputted by the buzzer
It would bê Nice to be self resetting after a given alarm time like 2 minutes.
Yes, I actually hadn't thought of it at that time. It could even be done with another NE555 timer IC.
@@MaxImagination actually just adding two capacitors Will do it
@@MARIE-mn5ui did u do it?
hii
dear i need help you
Hi, Sajid. How may I help?
@Max Imagination
I need this code with some modification please for this you can help me.
@@sajidmanzoor3606 Which code are you referring to? This project does not use any code.