Make Oscilloscope from Phone

[@f.t.w8645]

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

[@hpvide]

😂😂

[@lymmentrixprofessional]

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

[@ehnehm]

What mat do you use on your table?

[@udisami9856]

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]

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

[@udisami9856]

@@PhdHung Agreed. Not for amatures.

[@wokoteknik7935]

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

[@DanShepherd72]

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!

[@cometa792007]

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]

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]

@@mirarzaamplification902 what is love power transformer?

[@mirarzaamplification902]

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

[@lovelifeandunity1533]

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...?

[@PhdHung]

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.

[@studio4598]

Good 👍 เยี่ยมมากครับต้องทำไว้ใช้บ้าง ❤️

[@highlandwind47]

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

[@georgebadea4138]

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

[@MegaTechno]

Use a Bluetooth mic

[@jesu123ful]

This are used to mesuarment of ac 230 volt?

[@ledmarcos88]

serve para testar saída pwm de osciladores de inversores ?

[@PhdHung]

Maximum frequency is only 20Khz. Probably not

[@QRASARGENTOGURGEL]

EU PENSO QUE 60HZ DARÁ SIM

[@taicodien1990]

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]

Max input 20v thôi à.

[@taicodien1990]

Có cách nào để nâng cao ngõ vào dc không a

[@PhdHung]

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

[@taicodien1990]

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

[@dandelczeg8499]

Yhy site if you buyed the rsistors?

[@mastercat]

works on any phone?

[@alaveuglette274]

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

[@inayathali1196]

Good, but which phone model this working

[@PhdHung]

most android phones

[@electronic7979]

Nice project

[@PhdHung]

Thanks. Have a nice day

[@Tx_6969]

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

[@주재철-v4m]

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

[@jdelectronics26]

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

[@PhdHung]

Search oscilloscope on google play

[@really4132]

What is the blue and the gray one ??

[@conradvandien3495]

What phone app did you use?

[@patrickfle4485]

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?

[@gastonvillarino]

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

[@danielemencucci9931]

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?

[@klsonidhanla]

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

[@PhdHung]

That is my serect :)

[@klsonidhanla]

@@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]

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

[@alialipoor511]

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

[@michaelraj873]

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

[@PhdHung]

i use AR-Oscilloscope

[@michaelraj873]

Thank you

[@sergiomosquera2479]

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]

[@Salman-l1r2l]

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

[@rishavroy2150]

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]

Because it's fake jahahhaha

[@KeuCell]

with this project i can do pwm pulse test?

[@vipinckty1]

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

[@PhdHung]

[@danielemencucci9931]

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

[@DNAP460]

Nice idea 👍

[@PhdHung]

[@dulasl1165]

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

[@munirgamani]

Is it safe for mobile how much voltage input

[@PhdHung]

max 30 40V bro.

[@hustlaz2k]

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

[@PhdHung]

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

[@patrickfle4485]

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]

make oscilloscope very simple in my channel please see

[@patrickfle4485]

​@@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]

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

[@patrickfle4485]

@@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.

[@MrBobWareham]

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

[@mypower7853]

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

[@dreadwings3]

Is it possible to measure signals smaller than 1 V?

[@PhdHung]

ok, u can

[@elecrticityelectronics8591]

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

[@PhdHung]

max 20Khz

[@elecrticityelectronics8591]

@@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]

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]

@@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]

@@elioalcala4371 sorry bro, no idea myself 🙏

[@kshitezroshan8021]

is it accurate. what is the error percentage

[@dreadwings3]

Wow, more one subscriber from Brazil.

[@PhdHung]

[@michaeljoshuamanallo1742]

Can it work with vivo 2015??

[@gsmphonerepair5545]

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

[@desertwarrior7104]

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

[@PhdHung]

Yes, be careful

[@shinekollara]

Very nice and creative

[@PhdHung]

Thanks

[@PainStreakGamingYtAJtojbbros]

Till how much Voltage can it handle

[@blueunicorn807]

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

[@PhdHung]

Try downloading another software.

[@mohammadalfauomey3443]

Thanks What is the maximum frequency it can measur?

[@PhdHung]

max 20Khz

[@mohammadalfauomey3443]

@@PhdHung Thanks

[@خالدباشميل-ب9و]

how match frequency can drawing

[@mikeisbell1771]

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

[@perinoveriza1658]

May i know app name ?

[@PhdHung]

Find an oscilloscope on google play

[@zhuzzir]

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

[@PhdHung]

max 20V input

[@tinkerman9525]

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

[@malingeorgiev2962]

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]

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

[@skytek88]

Because it's fake jehehee

[@emilvladoiu91]

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

[@PhdHung]

:))

[@federicobortoli3226]

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

[@7d_alsaief51]

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

[@PhdHung]

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.

[@anekaelectronic1127]

good 👍🏾

[@animalzone2611]

Jo app use kartay ho us ke link de diya karo please

[@joshuamacdonald4913]

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

[@joaofilho9299]

Esse serve para medir som automotivo

[@PhdHung]

I think it ok

[@CUCARACHA707]

The "AC" Voltage on the "INPUT" not burn the Cellphone..??

[@mustafaderman6847]

Cok uzun zamandir aradigim video thank you

[@PhdHung]

Thank you for watching.

[@soneroflaz7246]

Uyguladınmı peki bende yapmak istiyorum. Birde uygulamanın adı nedir acaba

[@mustafaderman6847]

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

[@bahattinsargn5687]

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

[@mustafaderman6847]

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

[@alexanderariasjimenez9168]

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

[@cartoon_abed]

عمل جميل .. ثابر الى الامام

[@PhdHung]

I don't understand.

[@Khwartz]

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?

[@henryrobinson9837]

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

[@josvannut8268]

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

[@PhdHung]

Thanks. Have a nice day

[@brian_robotic4890]

Hello, it is safe to put 12 volts arteries to the microphone input of the phone

[@elyesgrati]

No

[@mauriciotoro4744]

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.

[@djisydneyaustralia]

So simple , very very clever

[@sadiqkhan-mf1gt]

Very Nice Work

[@PhdHung]

Thanks . Have a nice day

[@himmetsumer6976]

Only AC current?

[@PhdHung]

yes :D

[@iancuelectronik]

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

[@PhdHung]

Impossible, maximum frequency is 20Khz

[@ithaajja5724]

how to measure 32Khz ?

[@SvartVarg]

Nice! Good idea for a pocket oscilloscope .

[@PhdHung]

Thank you for watching and have a nice day

[@lkhoatinqn]

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

[@PhdHung]

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

[@clementyeo1942]

After plug in with 2 resistors. The phone still using internal mic as cannot detect the external mic (plug in with 2 resistors)

[@PhdHung]

What do you use your phone?. My phone uses an external Microphone.

[@dharmalingeswarparasa1609]

@@PhdHung Hi, thanks for your great technique. I too had the same issue, but I figured out that, for mobile to switch to external microphone, the impedance should be in specific range i.e, about ( 1k - 1.5k) but the value may differ with different mobiles. For me, 1k didn't working but 2k worked. (2/12 ratio). Thankyou.

[@fabioknob9321]

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

[@Mainak908]

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

[@saad24000]

with 100K resistr

[@idribbledonyou]

Outstanding. SImple and easy to replicate. Thanks

[@tonysfun]

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]

pls Find oscilloscope on Google play.

[@lawalmohammed83]

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

[@tonysfun]

@@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]

@@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.

[@electronresonator8882]

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

[@PhdHung]

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

[@ronen124]

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]

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

[@ronen124]

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

[@narendravishwakarma6956]

@@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

[@stingray1951]

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

[@mirza11jee65]

Good project Thanks

[@PhdHung]

Thanks

[@eltongjini6375]

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]

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

[@eltongjini6375]

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

[@cesarjorgemurillobarientos1813]

Very good master

[@GAMINGworld-fv1wj]

It is safe for mobile phones and no problems are face

[@adewaledipo]

Thanks again for your insight. Please I am still waiting for the desulphator circuit. You can forward it to [e-mail]

[@EcuExperto]

Excelente, gracias por compartir

[@PhdHung]

Thanks

[@melaniemartinez2216]

What is the current of the transformer?

[@QRASARGENTOGURGEL]

Oh please friend . Say to us the Frequency was showed not 60hz or 50hz . I was see 200hz . ?¿??Becouse??? Thanks happy a New year...

[@arieln4049]

Servira para medir una bobina vcore mostrara algo

[@주재철-v4m]

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

[@servetbirgul]

Thank you🥰🥰

[@PhdHung]

[@nishamore8244]

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

[@shundhem_electrick]

Thankyou

[@giabaongohoang4791]

Cái máy sóng đó có công dụng gì vậy anh