DIY sensitive VLF METAL DETECTOR with Smartphone (detects a metal coin at 25 cm and pot lid at 1m)

Thank you for sharing a great project. What type of wave form does the signal generator output? Its description says it is a "block" wave, which I would think is a square wave. However, I thought that you said it was a triangle wave? If I used another signal source, what would be the best wave form to use? A sine wave? I do not think that I am finding the phone output audio amplifier/speaker circuit. I have a LM386 audio amp circuit that should be good for the job. Yes? What did you use? Please and thank you.

Code arduino and app android

عمل رائع نرجو منك عمل مخطط الدائرة كامل في ملف وتصميم كامبيوتر ايضاً تعمل عدد لفات السلك مع القطر إن سمحت وشكراً لك

عمل رائع نرجو منك عمل مخطط الدائرة كامل في ملف وتصميم كامبيوتر ايضاً تعمل عدد لفات السلك مع القطر إن سمحت وشكراً لك

اخي هل يلتقط الحديد أم لا

Can I do it with the oscillator circuit 40Mhz with induction coil. and detecting eddy current through receiver and amplify with op amp?

App ka naam kia ha sir

Mama

Videon dan hic bir sey anlasilmiyor parca ve program isimlerini yazsan artii devre semasi koysan daha iyiydi

hi sir
in your project there is a part connect to pwm
can you please tell me what is this part

hint this part connect with 3 wire to PWM module

Hello sir.
We have belt conveyor matel detector given alram , residual alternating voltage can not be lined out.
Can you give us idea what we have to check .
Metal detector is based on transmitter & receiver coils

Can I put a headset instead of the phone

First thanks for this successful work
Then please how i can make more deep what i can do with coil to be better and discover deep

বাংলা

very good job
I tried to make it but it did not work for me, I think the problem from coil, I used 0.3mm coil diameter?! please help me

Yay must read

Zdravo Mirce, dali moze tuka vo MKD da se najde i da se kupi vakov signal generator?

Hello my friend, how are you? I here country Brazil. wanted to know how to make a quest x5 metal detector coil? Thanks

Mata oyata kata karanna kamayak nethda

Please how can Select iron or copper detection

on which parameters should we update to increase the detection distance?

I was make it.. its work well, now how about add small coil on tx and rx coil with same inductance?? Can it work too?

First Thank you sir
Second i have question
So i try to build this machine and i used chimical capacitor
My work Just from the picture of schematical
The problème is i recieve continue sound and when i test with métal i have no change in the sound
if you work with other composant or you have better schematical please tell us
thank you for all

Ok

What is the diameter of the two coils?

Can an oscillator be used? ne555

Thanks for this project. Can I use 1uF ceramic capacitor?

What's a mobile application?

Aplication respon vibration

Drugar kako date kontaktiram za da mi pomognesh da napravm edn vakof dektetor keti bidam mnogu zabllagodaran i keti kazham zoshto mi treba pliss

I am new to electronics, but your project is very interesting. I want to make one, but I am confused as follows: (1) to buy the resistor, which wattage should I buy? The 0.25 watt, 0,5 watt, or 1 watt? (2) And the power, do you mean it is "from 7,4 to 9 volt" , or can I just plug a 9 volt battery? (3) why the 2K resistor have down arrow while the 1K5 not? Thank you for your time reading and answering this..

Please tell me if I can increase the frequency to 50 Khz What do I need to change and in what way. I need an answer Thank you.

Name of App?

yaptım çalışmadı telefond srekli ses veriyor metali görmüyor

Legal gostei parabéns sucesso meu amigo,tenho um canal que eu explicou uma modificação no md4030 pra tira detecção falsa e ficou muito bom da uma olhada lá amigo

can we increase the size of the coil for more distance

is anyone made this dedectör . realy worrking

App is detecting sound?

The Smart Counter application needs more information, Android phone there are a lot of Smart Counter apps, but none of them look like the example you show.

👍👍👍

Ingeniero buenas tardes vi tu vídeo y me gusto he soñado en todami vida tener un detector pero debido a mi situación económica no he podido tener uno tengo 63 años y sigo teniendo sueños por buscar tesoros o guaca ingeniero vivo en Ibagué tolima colombia tebuendome encuentra mi situación y mi sueño en cuanto me venderías ese detector lo primero que yo haría al encontrar algo bueno lo tendría encuentra. Mi dirección es manzana 45 casa # 9 tercera etapa barrio Jordán Ibagué tolima colombia mi numero celular es 3134368294 no se nada de electrónica le quedaría altamente agradecido a esta petición muchas gracias Dios te bendecira le estaría mandando vídeos nuevamente Dios te bendecida sigas adelante ingeniero con tus proyectos lo felucito

What is components ???

This locator indicate a gold ?

Can you please tell me what is voltage value of the capacitors you used and does the difference in inductance of the coils affect the sensitivity? I need an answer. please.

Please can you send me an assemble one except smart phone and how much, for philippines

this app is sound detector not metal.
I bought premium version. Everything a fake ?

what values ​​did you enter in application frequency setting

why dont u answer me pls