Facebook group : bit.ly/CreativeElectronic Today, I will build an oscilloscope from my samsung android phone. I use 2 resistors 1K and 10K to form a 11: 1 voltage divider circuit. It helps the phone measure about 20V. With a maximum frequency 20Khz. Be careful, High voltage can damage your phone. I will not be responsible for any damage.

You have just killed electronic, this is the best thing ever, I really really love it , thanks sir.

I love it when they post videos, and not say a word.

@hpvide

2 жыл бұрын

😂😂

Impressive!!..thank u for sharing ur ideas... Bdw is it possible to check the microcontroller pulses around 3-5V with the same resistance value or should I use resistors of lower value...?

just what I needed, thank you very much for sharing, again ;-)

@PhdHung

4 жыл бұрын

Thanks. Have a nice day

Upper freq of bandwidth is about 20 khz and I suppose lower freq is not 0hz, so, to what frequency value can the non-continuous AC signal drop?

Excelente, gracias por compartir

@PhdHung

4 жыл бұрын

Thanks

Hi. How could we register a slow (like a little change every second, not necessarily sinusoidal) evolution of Resistance of a Circuit through Time with this system please?

Good 👍 เยี่ยมมากครับต้องทำไว้ใช้บ้าง ❤️

The app looks good, but it was a bit worrying how you demo with a live transformer and loose wires dangling around that almost were going to short out if you didn't push them apart. This is why i prefer to work only with low voltages and don't open up transformers - personally, stay safe!

Thanks a lot, my old Philips osciloscope broked, thats greater soluction

actually a good video ill try it out,but im goin use a premade microphone end that has 4 terminals on it,

This is what i really looking for... thank u very much my friend... 🥰

@PhdHung

4 жыл бұрын

Thanks for your training. Can we see the charge and discharge diagram of the capacitor with this device? please guide me.

Excellent! TY! Can I measure a maximum wave 20 volts?

It is bealtiful . That´s very good. But here in my country the imports they bring from China are not even good for exchange. Only the old components are reliable.

@PhdHung

4 жыл бұрын

How happy I was... Meanwhile I got to remember that my phone have not a microphone jack 😂😂😂

Nice idea 👍

@PhdHung

4 жыл бұрын

Tôi biết bạn là người Việt. Chúc bạn nhiều thành công. Tôi làm giống bạn nhưng không đo được bằng que đo nó chỉ đo được âm thanh thôi mặc dù cắm vào máy đã nhận phone

Nice! Good idea for a pocket oscilloscope .

@PhdHung

4 жыл бұрын

Thank you for watching and have a nice day

Cok uzun zamandir aradigim video thank you

@PhdHung

4 жыл бұрын

Thank you for watching.

@soneroflaz7246

4 жыл бұрын

Uyguladınmı peki bende yapmak istiyorum. Birde uygulamanın adı nedir acaba

@mustafaderman6847

4 жыл бұрын

Benim telefonum Lg G4 kronik olarak kulaklik girişleri arzasi oluyor bu yüzden uygulayamadim Uygulamanın adı Ar-Osciloscope Ama calisacagindan eminim diyebilirim.

@bahattinsargn5687

4 жыл бұрын

@@mustafaderman6847 Evet denediniz mi beyler ? Bir tane telefonum var ve denemeye tırsıyorum. Yakarsak büyük sıkıntı.

@mustafaderman6847

4 жыл бұрын

@@bahattinsargn5687 henuz denemedim ama cok yerde araştırdım dogru dirnceleri kullanirsan sıkıntı olacağınız düşünmüyorum

Hello. I've try, but the screen stay on the Mic mesurement ! What is the mystake ?? I've try different apps. Same results.

Question, the oscilloscope test is performed on a transformer. But it is AC that voltage and current is measuring. I do not think that a few simple resistors attenuate the current and voltage would burn the phone

@mirarzaamplification902

3 жыл бұрын

Based on the diagram it is connected to a microphone pin of a jack. And a microphone produce an AC signal thats why it reads ac mains which is 50hz or 60hz and it is inside the audio frequency spectrum. I think he uses low power transformer maybe thats why it only have a maximum of 20V, I just don't know if it is peak-peak or peak-zero point.

@dineshvyas

2 жыл бұрын

@@mirarzaamplification902 what is love power transformer?

@mirarzaamplification902

2 жыл бұрын

@@dineshvyas hahaha sorry, what I mean is lower power transformer. Typing error.

Good project Thanks

@PhdHung

4 жыл бұрын

Thanks

Wow, more one subscriber from Brazil.

@PhdHung

4 жыл бұрын

What app are you using. It looks like ar-oscillscope. It won't work on external microphone. Any help is appreciated Thank you.

Nice project

@PhdHung

4 жыл бұрын

Thanks. Have a nice day

Outstanding. SImple and easy to replicate. Thanks

replace 1k with 10k, 10k with 500k and add another 500k between ground wire and headphone jack and voila! you can measure mains voltage.

@PhdHung

4 жыл бұрын

I don't think that is a good idea. Just a small mistake will destroy your phone.

@udisami9856

4 жыл бұрын

@@PhdHung Agreed. Not for amatures.

What software did you installed on the phone? Thanks. Also, I was looking at your Facebook page, but could not find any information on this project there. Thanks for sharing!

@PhdHung

4 жыл бұрын

pls Find oscilloscope on Google play.

@lawalmohammed83

3 жыл бұрын

Great work done!please Sir what brand of sumsung phone did you use?

@tonysfun

3 жыл бұрын

@@lawalmohammed83 Sorry for late response, (Corona virus visited here!), Samsung A10 - inexpensive phone from TracFone service). Before that I also tried it on other phones from TracFone, like Motorola, LG and some others I can't remember the name.

@tonysfun

3 жыл бұрын

@@PhdHung Sorry for late response, (Corona virus visited here!) Yes, I found it, but none are exactly like yours - I think Google hides versions that would not run on my inexpensive phone and or OS version number.

Very Nice Work

@PhdHung

4 жыл бұрын

Thanks . Have a nice day

So simple , very very clever

Why at minute 2:07 the frequency of the tested network signal is not 50 or 60 hz but 100hz then it passes to 500 and finally to 51?

What mat do you use on your table?

This are used to mesuarment of ac 230 volt?

At 12'02" and at 12'28" why frequency displayed on phone is 100Hz instead of 50 Hz (AC power line) as on the oscilloscope ?

@CreativeHRM

4 жыл бұрын

make oscilloscope very simple in my channel please see

@patrickfle4485

4 жыл бұрын

​@@CreativeHRM see what ? The frequency on phone is wrong probably due to a bug in AR Oscilloscope application. Sometimes, the horizontal time base works badly.

@kwhp1507

4 жыл бұрын

Maybe it’s measuring the positive and negative peaks? I am not familiar with these cheap scope apps

@patrickfle4485

4 жыл бұрын

@@kwhp1507 such a case would be to ignore what a frequency is. I would rather look for a big bug in the management of the time base.

Thanks man for this video. 👏👏👏👏👏👏👏👏👍☺☺☺

عمل جميل .. ثابر الى الامام

@PhdHung

4 жыл бұрын

I don't understand.

just updated android with April's security update and AR-Oscilloscope has stopped working

master for an oscilloscope that uses an android phone, what equipment should we buy?

If i use 100k e 1k resistor can i test 230v AC 50hz directly?

Great video

@PhdHung

4 жыл бұрын

Thanks

Excellent .

Did you noticed that your application setting was bluetooth one and was disconnected too so is it possible to do so without turning it to microphone mode. You are playing the demo one.

@skytek88

Жыл бұрын

Because it's fake jahahhaha

love your displat where did you get it as I have just joined

serve para testar saída pwm de osciladores de inversores ?

@PhdHung

4 жыл бұрын

Maximum frequency is only 20Khz. Probably not

@aperteoverde6254

3 жыл бұрын

EU PENSO QUE 60HZ DARÁ SIM

On a samsung j5 android 6.0.1, the message "a problem occurred while parsing the package" is displayed when i want to run apk. Is it possible to use a compatible version?

@PhdHung

4 жыл бұрын

Use a lower version

@CreativeHRM

4 жыл бұрын

...make oscilloscope very simple in my channel please see

Thank you🥰🥰

@PhdHung

4 жыл бұрын

@nishamore8244

3 жыл бұрын

@@PhdHung hey will not the high voltage damage the phone and what precautions we have to take

Please suggest that how can we use it for higher voltage nearly 200-250v

Hey. Nice job. What is the maximum frequency it can measure?. Thank you.

@PhdHung

4 жыл бұрын

max 20Khz

@elecrticityelectronics8591

4 жыл бұрын

@@PhdHung did you test it for higher frequencies.. non audible frequencies.. 100 khz for instance... because the electronics inside may handle higher frequencies... thanks again... i'm interested in making one like this...

@zhuzzir

4 жыл бұрын

I belived it depends on phone's DAC, the better one like in VIVO model would surely be able to handle higher freq while the low n mid ranges phones would only be able to handle standard audio freq (20hz-29khz) unless u r lucky when yr phone manufacturer used better DAC but try at yr own risk thou.... 😜

@elioalcala4371

3 жыл бұрын

@@zhuzzir I might You an LG v30 has special dutch DAC ?can I get 915 Mhz Radio feq ? I need to measure lorawan Antenna What do You think?

@zhuzzir

3 жыл бұрын

@@elioalcala4371 sorry bro, no idea myself 🙏

Till how much Voltage can it handle

هههههههه غلطة واحدة وتفجر الدنيا كلها

Very good master

Все былобы хорошо еслиб указанная программа работала а так пришлось искать похожую прогу

with this project i can do pwm pulse test?

Super...!

@PhdHung

4 жыл бұрын

Thanks

Very nice dear brother 👍👍 What is your country name friend??

@PhdHung

4 жыл бұрын

That is my serect :)

@klsonidhanla

4 жыл бұрын

@@PhdHung no problem dear. I am made a pure sine wave solar inverter working fine but I want to your support for best results.

@madeintanzania2995

4 жыл бұрын

@@PhdHung 🤣🤣🤣🤣🤣, that is your secret 😆😆😆😆😆😆

NOW, I NEED OSCILOSCOPE BECAUSE OF MOTOR SUPPLIED VOLTAGE WAVE CHECK.... SO, I NEED IT. YOU SHOW ME THE SOLUTION.....THANKYOU VERY MUCH!!!!!!!.....

good 👍🏾

The 1K resistor is getting Super hot at 12v 1A. Can I use only the 10K resistor?

@user-mg3rc6cq3u

3 жыл бұрын

1k , 12v 1A , 12V÷1000 ohm= 0.012A , its only 12mA 12V× 0.012A = 0.144W. The 1K resistor will not super hot, I think

anh chưa hiểu cái clip này chắc để xem lại....he he he ...hôm nhậu say quá sáng 8h30 mới dậy

@PhdHung

4 жыл бұрын

KKK. Thấy anh nhậu suốt, thích nhể :3

hi... can we directly test the probe on 240vac or higher?

@PhdHung

3 жыл бұрын

No, the maximum voltage is 20V. if it is bigger, it will damage your phone.

Good job

@PhdHung

4 жыл бұрын

Thanks

Rất hay admin. Chỉ sợ chích bậy banh cái đt liền

@PhdHung

4 жыл бұрын

chích áp thấp thôi. Dưới 20V là ko vấn đề gì

But sir when I am trying to measure astable multivibrators then it's not working, can you help??

@PhdHung

4 жыл бұрын

Try downloading another software.

Very nice and creative

@PhdHung

4 жыл бұрын

Thanks

Err... May be i m missing something, but is there any max voltage or current when testing?

@PhdHung

4 жыл бұрын

max 20V input

@tinkerman9525

3 жыл бұрын

Even higher than 20v. If you needed to be told how it is better to with held the info.

شكرا جزيلا.

Yhy site if you buyed the rsistors?

Ola, gostei muito do projeto; mas montei e nao funcionou. 😞 seria problema do celular? tem alguma marca especifica?

is it accurate. what is the error percentage

What a nice joke,it should call: How to blow your phone 😂😂😂😂

@PhdHung

4 жыл бұрын

:))

@federicobortoli3226

9 ай бұрын

It work, i use It with a 1k-100k resistor to increase the voltage input, i use It for audio purpose but It work.

make one that performs good at 500khz and we discuss after

@PhdHung

4 жыл бұрын

Impossible, maximum frequency is 20Khz

it can't check 220 ac frequency. How to check that?

Very Good. Like 👍 For Vídeo.

@PhdHung

4 жыл бұрын

Can you do me a favor? What happens is that your video is a guide to an experiment of a subject for my university. Then I need what materials you use. I already have the resistances but I don't know what the other materials are. You sneak me please and thank you.

Thú vị quá nhỉ.. nếu làm thành công rồi mà đi đo mấy xung nhọn như inverter có điện áp vài trăm vôn thì liệu có hư điện thoại k a

@PhdHung

4 жыл бұрын

Max input 20v thôi à.

@taicodien1990

4 жыл бұрын

Có cách nào để nâng cao ngõ vào dc không a

@PhdHung

4 жыл бұрын

Thay trở lớn hơn, nhưng cũng nguy hiểm lắm. Lỡ chạm cái thì tèo dt ngay. Đo mấy cái tín hiệu thấp thôi.

@taicodien1990

4 жыл бұрын

Vâng tại thấy cắm vào màn hình là thấy k ổn rồi

Hello, u can make power supply 12v dc to +- 75 volt 20-30 amp constant voltage with ferrit core ee55 (55-28-21) i need to make this supply for my power amplifier 1200 watt output in bridge 8 ohm with final transistor mjw21196-mjw21195 28 pcs. Thank you for all🙏

@PhdHung

4 жыл бұрын

(75Vx2) x 30A ~ 4500W. You need to use 60VDC voltage and 4 EE55 cores.

@eltongjini6375

4 жыл бұрын

Im traying to make with that transformer ee55 with your driver circuit sg3525 but i dont know the primary turns for input 12v dc push pull circuit. Please u can help me with anything you know

What phone app did you use?

Is it possible to measure signals smaller than 1 V?

@PhdHung

4 жыл бұрын

ok, u can

Please tell me version of app Current app is not available as this version

@PhdHung

4 жыл бұрын

Search oscilloscope on google play

Sir this smart phone just next to you as running led display, I need this app

It is safe for mobile phones and no problems are face

@adewaledipo

4 жыл бұрын

Thanks again for your insight. Please I am still waiting for the desulphator circuit. You can forward it to adewaledipo@gmail.com

Thankyou

how can I raise the maximum voltage to 220 volt?, what resistor should I use? how about 1K and 200K resistor?

@PhdHung

4 жыл бұрын

I don't think that is a good idea. Just a small mistake will destroy your phone.

@ronen124

4 жыл бұрын

You can try using probe x100 it will attenuate the signal drastically yet as the author of this demonstration said: it might not be a good idea putting your phone on the line here. Also I take no responsibility if you destroy your device or hurt yourself if you follow suit whatsoever.

@narendravishwakarma6956

4 жыл бұрын

Why not use a 220 to 12v transformer for the same

@ronen124

4 жыл бұрын

@@narendravishwakarma6956 it is clumsy, unaccurate and will not measure DC high voltage at all 👍😆😃

@narendravishwakarma6956

4 жыл бұрын

@@ronen124 calibrate it on a printed chart for accuracy and question was for 220 volt, I.e. in india , generally 220v is asked as 220v AC for which transformer is safe to use in practice... After all its a virtual Oscilloscope, not a regular one

I have tried making the leads twice and no luck. The app won't detect in the phone.

i measured 3v dc and 12v dc its not showing.why

works on any phone?

Cái máy sóng đó có công dụng gì vậy anh

Lo hise pero no funciona como deveria porq la escala de voltaje es la misma si mide uno 5 voltios q 12 voltios

V good but , thats part its not clear ( is that transformer )? Can you explain it by any way plz ??

@PhdHung

4 жыл бұрын

The maximum voltage that can be measured is 20v. It cannot measure the waveform of a 220V grid. So I use transformer 220V to 12V.

are you serious? Attention!! it can seriously damage your mobile phone the Jack is an output! and it will not support high voltage

@PhdHung

4 жыл бұрын

max input 20V

@hammabsd

4 жыл бұрын

@@PhdHung the earphone jack is not an input! the Diode protect the circuit from small electric amounts but i think that 5v or more for some seconds can seriously damage it then damage the other components

Hi homemade. I tried this project, but it's showing me a square wave instead of a sine wave signal. Any idea what is wrong, I even tried changing the resistor value but there isn't any sine wave output

@PhdHung

3 жыл бұрын

This project uses the phone's audio chip, each phone has a different audio chip, so it probably won't work with all phones.

Thanks What is the maximum frequency it can measur?

@PhdHung

4 жыл бұрын

max 20Khz

@mohammadalfauomey3443

4 жыл бұрын

@@PhdHung Thanks

Good, but which phone model this working

@PhdHung

4 жыл бұрын

most android phones

How do you make divider 10:1 with resistors 1K and 10K? Picture on 3:14 show devider 11:1 :( It will work but will show wrong values for voltage..

@CreativeHRM

4 жыл бұрын

make oscilloscope very simple for mobile in my channel /// please see

@skytek88

Жыл бұрын

Because it's fake jehehee

Thanks but 12v ac maybe is damaged your phone..?

@PhdHung

4 жыл бұрын

Yes, be careful

I am struggling to convert music to speech. ( Instructions /description ?)

Very nice....What are the mobile application you used

@PhdHung

4 жыл бұрын

i use AR-Oscilloscope

@michaelraj873

4 жыл бұрын

Thank you

nhạc bolero hay đó bạn

@PhdHung

4 жыл бұрын

:))

@hungo7243

4 жыл бұрын

Bạn hướng dẫn làm mạch cách li để chống ảnh hưởng đến điện thoại gây hỏng điện thoại