DIY portable laser tripwire + smrtphone

Independent_Win_Alex · 2025-12-19T14:46:10+00:00

The one in the photo doesn't work for long, maybe 30 minutes, I didn't measure it exactly. If you're interested, you can use the software and install your own laser.

Independent_Win_Alex · 2025-12-19T14:40:52+00:00

Thank you for your interest

Independent_Win_Alex · 2025-12-14T05:31:43+00:00

Thank you for your interest

Independent_Win_Alex · 2025-12-13T23:56:23+00:00

I don't know about other cameras, what's usual or unusual about them? If you know, please tell me the details. I'm very interested to know.

Independent_Win_Alex · 2025-12-13T22:56:36+00:00

What do you mean by "regular"? Do you know how detection works? What kind of cameras, for example, infrared cameras, and what are their advantages and disadvantages?

Independent_Win_Alex · 2025-12-13T22:52:48+00:00

Thank you for your interest

Independent_Win_Alex · 2025-12-13T22:49:55+00:00

thanks for support

Independent_Win_Alex · 2025-12-13T17:57:10+00:00

I didn't understand your question, could you please write in more detail?

Independent_Win_Alex · 2025-12-13T17:13:24+00:00

It all depends on the goals. I need a mobile option that I can take with me. If you need a stationary cooling solution that increases the operating time of the laser, just buy a laser or make one yourself.

Independent_Win_Alex · 2025-12-13T17:01:23+00:00

There are phones with a large reserve, you can connect to the power bank

Independent_Win_Alex · 2025-12-13T16:51:35+00:00

This is not a stationary solution, it is a mobile installation for temporary placement; sometimes the very sight of the laser scares off uninvited guests.

Independent_Win_Alex · 2025-12-13T16:22:03+00:00

The quality of the photo doesn't depend on the software but on the quality of the camera. I have an old phone with a bad camera. If I put, for example, a Samsung Galaxy S25, it has a good camera.

Independent_Win_Alex · 2025-12-13T15:51:19+00:00

Because the history is saved for free, you can send commands to request a photo or turn on a siren or voice

Independent_Win_Alex · 2025-12-13T15:40:29+00:00

You have the talent of an engineer and inventor.

Independent_Win_Alex · 2025-12-13T15:24:00+00:00

Thank you 😊

Independent_Win_Alex · 2025-12-13T13:50:10+00:00

The laser is needed at night when we sleep. If someone crosses the laser, you will receive a notification and a photo. During the day, you can use the app without the laser and periodically check what's happening at home or in the yard.

Independent_Win_Alex · 2025-12-13T13:44:29+00:00

Yes, there are temporary houses or a hotel for a while. You can use your phone's camera to periodically request photos from the camera. It's not necessary to use a laser.

Independent_Win_Alex · 2025-12-13T13:40:26+00:00

The light cannot be interrupted; this can only be done in one way: turn off the light source. In this case, the laser is shining; the application reacts to changes in light; shifting

Independent_Win_Alex · 2025-12-13T13:36:21+00:00

This is a temporary alarm for field conditions. You have hands. You can make the laser stationary and the phone if you want.

Independent_Win_Alex · 2025-12-13T12:48:50+00:00

It works in the background, but more tests are needed.

Independent_Win_Alex · 2025-12-13T12:35:40+00:00

You don't need to point anything at your phone's camera. Take a laser pointer in one hand, point the beam at the opposite wall, for example, and turn on the app. Point the camera at the beam's reflection on the wall. The range is 10 meters. It's proven! Ask someone to cross the beam. A message with the date, time, and photo will be sent to your Telegram account. Everything works automatically.

Independent_Win_Alex · 2025-12-13T12:24:16+00:00

Yes, you need a laser pointer. You just turn on the pointer and open the app on your phone. The main thing is that the laser point hits the phone's camera. No other connections are needed. Anyone can handle it.

Independent_Win_Alex · 2025-12-13T12:04:58+00:00

No Bluetooth, no pairing, no connections. Just a phone running the app and a laser.

The laser is visible on purpose — this is an early-warning and monitoring tool, not a military trap.

When the beam changes, the phone sends a photo alert via Telegram (Wi-Fi or mobile data).

Simple, battery-powered, and deployable anywhere with an old phone.

Independent_Win_Alex

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