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tomko

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Posts posted by tomko

    Struggle to tune the scope probes that come with Analog Discovery 2

    in Test and Measurement

    Posted

    Hi @Cristian.Fatu

    I tried to tune the 2 new probes and I am afraid that they are still having the same issue, both still under compensate. One is a bit better than the other. I have bought a pair locally from https://www.amazon.co.uk/gp/product/B088YMNJ6V/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1. I believe they are of the similar type. They can be tuned to under or over compensate so I can get them to give a good square wave.

    I attached 3 screenshots, New probe 1, New probe 2 and Locally sourced probe. For the new probes, you can see the square wave is still under compensated. In all cases, I am outputting the square wave from the waveform 1 in the BNC adaptor into Scope 1.

    Are you able to get a pair tested before sending to me?

    Many thanks

     

     

    New probe 1.png

    New probe 2.png

    Locally sourced probe.png

    Mac "hanging" with new versions of waveforms.

    in Test and Measurement

    Posted · Edited by tomko

    Hi @attila

    Here is the outcome of my tests on the 3 beta version:

    • V3.18.15 with Qt5.9.9: No hanging and observed the same behaviour as Qt5.6.3
    • V3.18.15 with Qt5.12.12: The GUI hanging when brought to foreground from behind a window e.g the same behaviour as Qt5.12.9
    • V3.18.15 with Qt5.15.2: The GUI hanging when brought to foreground from behind a window e.g the same behaviour as Qt5.12.9
      • This version crashed when I selected the About WaveForms menu item under the WaveForms menu. The crash report is attached. The versions with Qt5.12.12 and Qt5.9.9 are both fine.

    Thanks

    V3.18.15_Qt5.15.2_Crash_Select_About_WaveForms.txt

    Mac "hanging" with new versions of waveforms.

    in Test and Measurement

    Posted

    I have been experimenting between different versions and it looks like the problem started happening in 3.15.2. In 3.15.2, it switches to using QTS 5.12.9 while in 3.13.23, QTS 5.6.3 is used. This seems to confirm the discussion in the above link from @attila.

    I then try to understand under what conditions the GUI would hang. So far It appears that the GUI would hang when brought to the foreground from the background when all or part of its GUI is overlapped by another application. If the GUI is hidden into the dock or in another Mission desktop (but not blocked by another application), it would not hang when bringing into the focus/foreground.

    I will keep on trying to verify the finding above.

    Struggle to tune the scope probes that come with Analog Discovery 2

    in Test and Measurement

    Posted

    Contacted Digikey - unfortunately they are not able to send me a pair of probes since my probes came within the Ultimate AD2 Bundle. They are happy to send me a replacement for the whole bundle provided I returned the bundle I received. Since I am based in the UK, it seems a lot of effects with all the packaging and shipping just to get a replacement probes.

    Can Diligent send me a pair? If not, then I will source one from Amazon locally.

    Hello from UK

    in New Users Introduction

    Posted

    Hi,

    My name is Tom Ko and I am based in Dorset, UK. I have been a programmer all my life (I am over 50 now) and never really venture into the world of electronics. I plan to use my newly purchased AD2 and Adruino to learn more.

    One of my hobbies is listening to music. I would like to be able to build my own amplifier this year (new year resolution!).

    I have run into an issue with tuning the probes which I posted in a separate thread in the Test and Measurement area. Look forwards to your advices and reading others' experience!

    Kind regards,

    Tom

    Struggle to tune the scope probes that come with Analog Discovery 2

    in Test and Measurement

    Posted · Edited by tomko
    Extra information on the probes

    Hi,

    Analog Discovery 2 is my first ever oscilloscope and I plan to use it with my Arduino to explore the world of electronics.

    I recently purchased a Analog Discovery 2 along with the BNC adapter. I tried to tune the probes (P6100) that come with the ultimate AD2 bundle but I can't seem to be able to get a good square wave. It is always under compensated. I tried out both channels on the adapter, Channel 2 is worth than Channel 1.

    I attached a few photos for your information. The red one is from Channel 1 while the blue one is from Channel 2. I also attach a photo on how the probe is connected to Channel 1. In all cases, the probes are connected to W1 coming out of the AD2 (see the Connections.png) and is outputting a 1KHz square wave with 5V output. The probes are set to x10 and the attenuations are also set to x10. And Channel 1 on the BNC board is set to AC coupling. 

    My computer is a MacBook Pro 2018 and the WaveForms is version 3.17.1 64-bit Qt5.12.9 MacOS 10.16 Qt5.12.9.

    Am I using the incorrect method to tune the probes? Or could it be faulty probes?

    Any advices are greatly appreciated!

    Kind regards,

    Tom

    Ch1.png

    Ch2.png

    Connections.png

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