Make Oscilloscope from Phone

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  • เผยแพร่เมื่อ 10 เม.ย. 2020
  • The oscilloscope is an expensive device, It displays the change of an electrical signal over time, with voltage and time as the Y- and X-axes, respectively, on a calibrated scale. The waveform can then be analyzed for properties such as amplitude, frequency, rise time, time interval, distortion, and others. However, not everyone has enough money to buy it. Today, I will build an oscilloscope from my samsung android phone. I use 2 resistors 1K and 10K to form a 10: 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.
    Facebook group : bit.ly/CreativeElectronic
    All my projects are free, I design them on EAGLE 6.0. I uploaded it to Google drive. You need to use a web browser to download the file and open the file with winrar software (extract) on the PC. Open schematic file (.SCH) and PCB file (.BRD) with EAGLE software.
    Hope you enjoy my videos and projects. Like, share and don't forget to subscribe to my channel. one more thing, thanks to everyone, my channel has reached 50K subscribers.
    #Inverter
    #12Vto220V
    #oscilloscope
  • แนวปฏิบัติและการใช้ชีวิต

ความคิดเห็น • 336

  • @lymmentrixprofessional
    @lymmentrixprofessional 2 ปีที่แล้ว +1

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

  • @lovelifeandunity1533
    @lovelifeandunity1533 4 ปีที่แล้ว +7

    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...?

  • @f.t.w8645
    @f.t.w8645 3 ปีที่แล้ว +5

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

    • @hpvide
      @hpvide 2 ปีที่แล้ว

      😂😂

  • @idribbledonyou
    @idribbledonyou 2 ปีที่แล้ว

    Outstanding. SImple and easy to replicate. Thanks

  • @alialipoor511
    @alialipoor511 2 ปีที่แล้ว +1

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

  • @Khwartz
    @Khwartz 2 ปีที่แล้ว +1

    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?

  • @patrickfle4485
    @patrickfle4485 4 ปีที่แล้ว +3

    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?

  • @SvartVarg
    @SvartVarg 4 ปีที่แล้ว +2

    Nice! Good idea for a pocket oscilloscope .

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thank you for watching and have a nice day

  • @studio4598
    @studio4598 2 ปีที่แล้ว

    Good 👍 เยี่ยมมากครับต้องทำไว้ใช้บ้าง ❤️

  • @fabioknob9321
    @fabioknob9321 4 ปีที่แล้ว +1

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

  • @josvannut8268
    @josvannut8268 4 ปีที่แล้ว +3

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks. Have a nice day

  • @henryrobinson9837
    @henryrobinson9837 4 ปีที่แล้ว +1

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

  • @djisydneyaustralia
    @djisydneyaustralia ปีที่แล้ว

    So simple , very very clever

  • @gastonvillarino
    @gastonvillarino 2 ปีที่แล้ว +1

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

  • @vipinckty1
    @vipinckty1 4 ปีที่แล้ว +5

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

  • @JhonCalister
    @JhonCalister 3 ปีที่แล้ว +2

    gracias funciona muy bien en bajas corrientes . vi las cuadradas de un pwm que tengo.

  • @EcuExperto
    @EcuExperto 4 ปีที่แล้ว +4

    Excelente, gracias por compartir

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks

  • @mikeisbell1771
    @mikeisbell1771 ปีที่แล้ว

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

  • @davidcromapix9083
    @davidcromapix9083 3 ปีที่แล้ว +1

    Excellent .

  • @ehnehm
    @ehnehm 9 หลายเดือนก่อน +1

    What mat do you use on your table?

  • @jesu123ful
    @jesu123ful 4 ปีที่แล้ว +1

    This are used to mesuarment of ac 230 volt?

  • @DanShepherd72
    @DanShepherd72 2 ปีที่แล้ว +2

    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!

  • @alaveuglette274
    @alaveuglette274 2 ปีที่แล้ว

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

  • @mirza11jee65
    @mirza11jee65 4 ปีที่แล้ว +2

    Good project
    Thanks

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks

  • @gsmphonerepair5545
    @gsmphonerepair5545 2 ปีที่แล้ว

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

  • @wokoteknik7935
    @wokoteknik7935 2 ปีที่แล้ว

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

  • @MrBobWareham
    @MrBobWareham 2 ปีที่แล้ว

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

  • @cesarjorgemurillobarientos1813
    @cesarjorgemurillobarientos1813 2 ปีที่แล้ว

    Very good master

  • @electronic7979
    @electronic7979 4 ปีที่แล้ว +2

    Nice project

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks. Have a nice day

  • @sadiqkhan-mf1gt
    @sadiqkhan-mf1gt 4 ปีที่แล้ว +1

    Very Nice Work

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks . Have a nice day

  • @DNAP460
    @DNAP460 4 ปีที่แล้ว +2

    Nice idea 👍

  • @dreadwings3
    @dreadwings3 3 ปีที่แล้ว +2

    Wow, more one subscriber from Brazil.

  • @rishavroy2150
    @rishavroy2150 3 ปีที่แล้ว +2

    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
      @skytek88 ปีที่แล้ว

      Because it's fake jahahhaha

  • @tonysfun
    @tonysfun 3 ปีที่แล้ว +1

    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
      @PhdHung  3 ปีที่แล้ว +3

      pls Find oscilloscope on Google play.

    • @Labibatuabubakar4
      @Labibatuabubakar4 3 ปีที่แล้ว +1

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

    • @tonysfun
      @tonysfun 3 ปีที่แล้ว

      @@Labibatuabubakar4 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
      @tonysfun 3 ปีที่แล้ว

      @@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.

  • @mustafaderman6847
    @mustafaderman6847 4 ปีที่แล้ว +3

    Cok uzun zamandir aradigim video thank you

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว +1

      Thank you for watching.

    • @soneroflaz7246
      @soneroflaz7246 4 ปีที่แล้ว +1

      Uyguladınmı peki bende yapmak istiyorum. Birde uygulamanın adı nedir acaba

    • @mustafaderman6847
      @mustafaderman6847 4 ปีที่แล้ว

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

    • @bahattinsargn5687
      @bahattinsargn5687 3 ปีที่แล้ว

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

    • @mustafaderman6847
      @mustafaderman6847 3 ปีที่แล้ว

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

  • @mypower7853
    @mypower7853 3 ปีที่แล้ว

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

  • @cometa792007
    @cometa792007 4 ปีที่แล้ว +14

    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
      @mirarzaamplification902 3 ปีที่แล้ว +1

      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
      @dineshvyas 2 ปีที่แล้ว

      @@mirarzaamplification902 what is love power transformer?

    • @mirarzaamplification902
      @mirarzaamplification902 2 ปีที่แล้ว

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

  • @cartoon_abed
    @cartoon_abed 4 ปีที่แล้ว +1

    عمل جميل .. ثابر الى الامام

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      I don't understand.

  • @servetbirgul9526
    @servetbirgul9526 4 ปีที่แล้ว +3

    Thank you🥰🥰

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

    • @nishamore8244
      @nishamore8244 3 ปีที่แล้ว

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

  • @sergiomosquera2479
    @sergiomosquera2479 4 ปีที่แล้ว +4

    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.

  • @bomche115
    @bomche115 4 ปีที่แล้ว +2

    Great video

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks

  • @georgebadea4138
    @georgebadea4138 ปีที่แล้ว

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

  • @shinekollara
    @shinekollara 4 ปีที่แล้ว +1

    Very nice and creative

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks

  • @WCERPE
    @WCERPE หลายเดือนก่อน

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

  • @anekaelectronic1127
    @anekaelectronic1127 4 ปีที่แล้ว +2

    good 👍🏾

  • @dandelczeg8499
    @dandelczeg8499 3 ปีที่แล้ว +1

    Yhy site if you buyed the rsistors?

  • @PhdHung
    @PhdHung  4 ปีที่แล้ว +2

    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.

  • @lungocicorneliu1119
    @lungocicorneliu1119 4 ปีที่แล้ว +1

    Super...!

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks

  • @benjaminlevi7792
    @benjaminlevi7792 4 ปีที่แล้ว +2

    Good job

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Thanks

  • @nourddin1692
    @nourddin1692 2 ปีที่แล้ว +1

    شكرا جزيلا.

  • @danielemencucci9931
    @danielemencucci9931 3 ปีที่แล้ว +1

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

  • @user-mg3rc6cq3u
    @user-mg3rc6cq3u 3 ปีที่แล้ว

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

  • @patrickfle4485
    @patrickfle4485 4 ปีที่แล้ว +5

    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
      @CreativeHRM 4 ปีที่แล้ว

      make oscilloscope very simple in my channel
      please see

    • @patrickfle4485
      @patrickfle4485 4 ปีที่แล้ว +2

      ​@@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
      @kwhp1507 4 ปีที่แล้ว

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

    • @patrickfle4485
      @patrickfle4485 4 ปีที่แล้ว

      @@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.

  • @danielemencucci9931
    @danielemencucci9931 3 ปีที่แล้ว

    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?

  • @shundhem_electrick
    @shundhem_electrick 2 ปีที่แล้ว +1

    Thankyou

  • @PainStreakGamingYtAJtojbbros
    @PainStreakGamingYtAJtojbbros 4 ปีที่แล้ว +1

    Till how much Voltage can it handle

  • @elecrticityelectronics8591
    @elecrticityelectronics8591 4 ปีที่แล้ว +5

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว +3

      max 20Khz

    • @elecrticityelectronics8591
      @elecrticityelectronics8591 4 ปีที่แล้ว +1

      @@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
      @zhuzzir 4 ปีที่แล้ว +3

      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
      @elioalcala4371 3 ปีที่แล้ว

      @@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
      @zhuzzir 3 ปีที่แล้ว

      @@elioalcala4371 sorry bro, no idea myself 🙏

  • @lkhoatinqn
    @lkhoatinqn 3 ปีที่แล้ว +1

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

    • @PhdHung
      @PhdHung  3 ปีที่แล้ว

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

  • @conradvandien3495
    @conradvandien3495 3 ปีที่แล้ว

    What phone app did you use?

  • @highlandwind47
    @highlandwind47 3 ปีที่แล้ว +1

    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

  • @vivianefleury2744
    @vivianefleury2744 4 ปีที่แล้ว +2

    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
      @PhdHung  4 ปีที่แล้ว +1

      Use a lower version

    • @CreativeHRM
      @CreativeHRM 4 ปีที่แล้ว

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

  • @KeuCell
    @KeuCell 2 ปีที่แล้ว

    with this project i can do pwm pulse test?

  • @lestedabahia6121
    @lestedabahia6121 4 ปีที่แล้ว +2

    Very Good.
    Like 👍 For Vídeo.

  • @mauriciotoro4744
    @mauriciotoro4744 2 ปีที่แล้ว

    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.

  • @udisami9856
    @udisami9856 4 ปีที่แล้ว +4

    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
      @PhdHung  4 ปีที่แล้ว +1

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

    • @udisami9856
      @udisami9856 4 ปีที่แล้ว

      @@PhdHung Agreed. Not for amatures.

  • @hustlaz2k
    @hustlaz2k 3 ปีที่แล้ว +1

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

    • @PhdHung
      @PhdHung  3 ปีที่แล้ว +1

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

  • @inequitas
    @inequitas 3 ปีที่แล้ว +1

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

  • @mohammadalfauomey3443
    @mohammadalfauomey3443 4 ปีที่แล้ว +1

    Thanks
    What is the maximum frequency it can measur?

  • @kshitezroshan8021
    @kshitezroshan8021 4 ปีที่แล้ว +1

    is it accurate. what is the error percentage

  • @user-qh5kb7rv7o
    @user-qh5kb7rv7o 2 ปีที่แล้ว

    how match frequency can drawing

  • @zhuzzir
    @zhuzzir 4 ปีที่แล้ว +2

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      max 20V input

    • @tinkerman9525
      @tinkerman9525 3 ปีที่แล้ว

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

  • @jeka_1342
    @jeka_1342 4 ปีที่แล้ว +3

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

  • @really4132
    @really4132 ปีที่แล้ว

    What is the blue and the gray one ??

  • @7d_alsaief51
    @7d_alsaief51 4 ปีที่แล้ว +1

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      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.

  • @Tx_6969
    @Tx_6969 3 ปีที่แล้ว +2

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

    • @user-mg3rc6cq3u
      @user-mg3rc6cq3u 3 ปีที่แล้ว

      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

  • @ledmarcos88
    @ledmarcos88 4 ปีที่แล้ว +3

    serve para testar saída pwm de osciladores de inversores ?

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว +2

      Maximum frequency is only 20Khz. Probably not

    • @aperteoverde6254
      @aperteoverde6254 3 ปีที่แล้ว

      EU PENSO QUE 60HZ DARÁ SIM

  • @mr.ashutoshkumar4370
    @mr.ashutoshkumar4370 4 ปีที่แล้ว

    I can set inverter frequency

  • @KinhKha-lm2zl
    @KinhKha-lm2zl 4 ปีที่แล้ว +2

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      KKK. Thấy anh nhậu suốt, thích nhể :3

  • @mastercat
    @mastercat 3 ปีที่แล้ว +1

    works on any phone?

  • @giabaongohoang4791
    @giabaongohoang4791 4 ปีที่แล้ว +1

    Cái máy sóng đó có công dụng gì vậy anh

  • @animalzone2611
    @animalzone2611 4 ปีที่แล้ว +1

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

  • @user-yb1in2vg5c
    @user-yb1in2vg5c 2 ปีที่แล้ว +2

    هههههههه غلطة واحدة وتفجر الدنيا كلها

  • @Infinite_Mainak
    @Infinite_Mainak 3 ปีที่แล้ว +1

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

  • @dreadwings3
    @dreadwings3 3 ปีที่แล้ว +2

    Is it possible to measure signals smaller than 1 V?

    • @PhdHung
      @PhdHung  3 ปีที่แล้ว

      ok, u can

  • @blueunicorn807
    @blueunicorn807 4 ปีที่แล้ว +2

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Try downloading another software.

  • @iancuelectronik
    @iancuelectronik 3 ปีที่แล้ว +2

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

    • @PhdHung
      @PhdHung  3 ปีที่แล้ว

      Impossible, maximum frequency is 20Khz

  • @taicoien4916
    @taicoien4916 4 ปีที่แล้ว +1

    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
      @PhdHung  4 ปีที่แล้ว

      Max input 20v thôi à.

    • @taicoien4916
      @taicoien4916 4 ปีที่แล้ว

      Có cách nào để nâng cao ngõ vào dc không a

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

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

    • @taicoien4916
      @taicoien4916 4 ปีที่แล้ว

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

  • @dulasl1165
    @dulasl1165 ปีที่แล้ว +1

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

  • @michaeljoshuamanallo1742
    @michaeljoshuamanallo1742 2 ปีที่แล้ว

    Can it work with vivo 2015??

  • @yoones5072
    @yoones5072 หลายเดือนก่อน

    خوب بود

  • @jdelectron
    @jdelectron 4 ปีที่แล้ว +2

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      Search oscilloscope on google play

  • @zakirida6424
    @zakirida6424 4 ปีที่แล้ว +1

    Good

  • @electronresonator8882
    @electronresonator8882 4 ปีที่แล้ว +3

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

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว +4

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

    • @ronen124
      @ronen124 4 ปีที่แล้ว +1

      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
      @narendravishwakarma6956 4 ปีที่แล้ว

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

    • @ronen124
      @ronen124 4 ปีที่แล้ว

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

    • @narendravishwakarma6956
      @narendravishwakarma6956 4 ปีที่แล้ว

      @@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

  • @inayathali1196
    @inayathali1196 4 ปีที่แล้ว +2

    Good, but which phone model this working

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      most android phones

  • @GAMINGworld-fv1wj
    @GAMINGworld-fv1wj 4 ปีที่แล้ว +2

    It is safe for mobile phones and no problems are face

    • @adewaledipo
      @adewaledipo 4 ปีที่แล้ว

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

  • @alexanderariasjimenez9168
    @alexanderariasjimenez9168 4 ปีที่แล้ว +1

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

  • @melaniemartinez2216
    @melaniemartinez2216 2 ปีที่แล้ว

    What is the current of the transformer?

  • @hungo7243
    @hungo7243 4 ปีที่แล้ว +2

    nhạc bolero hay đó bạn

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      :))

    • @hungo7243
      @hungo7243 4 ปีที่แล้ว

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

  • @luisdavidsamanaherre5165
    @luisdavidsamanaherre5165 4 ปีที่แล้ว +2

    Sirve para el rango en mhz?

    • @PhdHung
      @PhdHung  4 ปีที่แล้ว

      max 20Khz input

  • @eltongjini6375
    @eltongjini6375 4 ปีที่แล้ว +3

    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
      @PhdHung  4 ปีที่แล้ว +1

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

    • @eltongjini6375
      @eltongjini6375 4 ปีที่แล้ว

      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