Make This SMART Gadget With Just 6 Parts! Non contact voltage detector.

diy non contact voltage tester using 6 electronic components,
perfect project for beginners.
All parts are explained in video also schematic is included.

[Hacktuber]

Thx for watching and sharing this project with your friends.

[chainreaction]

Brilliant. Great resource for future generations.

[eveningstarnm]

It isn't detecting voltage. It's detecting the magnetic field generated by the current flowing through the wire. There's voltage present even when there is no current. It's a current detector, not a voltage detector.

[Grump-wmtp]

Nice project, and could be a life-saver if you're drilling into walls, ceilings, floors and don't know where the AC cables are running - commercial units are plentiful of course, but a simple DIY is always preferred!
A couple of (dumb?) questions:
(1) could the detection strength be boosted? say with a more powerful battery, or with more coils in the antenna?
(2) does the LED glow proportionally to the current/distance? in the demo, it looks just on/off, but it could be due to the bright room.

[td]

Fun project. Thank you for sharing. Question = 9 volt batteries are big and expensive. The schematic looked like maybe 3 volts was usable? What voltages and battery types can be used? Tip = Maybe cover the antenna wire with some heat shrink, to improve its insulation. The wire's thin, enamel coating will wear off fairly easily, making it conductive.

[andrewuk]

This is really interesting - love your videos. Not a criticism but if you wanted to make it even better could you perhaps explain a bit about how it works? Thank you.

[martinlabuda]

I like these simple and very cheap detectors, but they are missing important sensitivity adjustment. Great video, thumbs up.

[MCsCreations]

Awesome little project, dude! Nicely done! 😃
Stay safe there with your family! 🖖😊

[larryberry]

Thank you for sharing, great and useful project.

[paul.gagniuc]

Photon-pixel coupling: A method for parallel acquisition of electrical signals in scientific investigations

[Fbiking]

At the end, when he shows the "tester", the led lights on without testing anything !!!??? 🤔

[TodoRadegast]

USB has DC, hasn’t it? Although it’s working?

[Edmorbus]

Hacktuber use computer mouse red led they are very bright

[haxxy]

Hi. You said you are going to wind a couple of loops. A couple = 2 (in your case 2 loops). I know english is not your native language, so I'm not judging!