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    Transistor switch time

    Sorry, not quite keeping up. If the base is falling, the transistor is turning off, rather than on, so if it is turning off quickly and I have not done the maths of 7.5k into the capacitance, but if that is fast, then the rise we see looks like the 33k driving the line to the chip. Is that line...
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    Home Based Income as an Electronics Hobbyist

    Not saying it's automatically for you, but some who have done those digital courses and even microprocessors find that software, particularly embedded software is something that is easily within reach and interests. If you look at the freelancing sites, there's a range of offers, including...
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    Oscilloscope Connection Question

    Damage? It depends on whether the probe and scope can handle the voltage. Check the specs of the probe and scope. If you are having to ask, I'd have to suggest that you not do things with the mains power. What's your reason for wanting to look at the mains? Maybe there is another way to get what...
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    using USB-C as a passive bus

    There was a time, when one could easily buy fully-wired serial cables DB25. There once also was a thing called a printer cable, that was redily available & multi-wire. Another option was ribbon cable. Simple to make (IDC), header-to-header and in any length. Also an option to include grounds...
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    How difficult to have a microphone made

    Looking to plug this in and have a wire to the mic part? Or perhaps, just something that sits right there on the usb socket? I Googled usb mic for phone & got quite a few hits, the likes of lapel mics and such. I'm not really sure what you're looking for, as in the application, record what?, or...
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    How difficult to have a microphone made

    Physically stronger? In what way? Googled this. They have a range. You had one, or a use case in mind? Are we talking audio range? HiFi? infrasound? Yep. Generally. Needs lots of little bits to be developed and made. Also a one-off will cost more than a mass-produced one. There are lots of...
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    MORPHOLOGICAL ANTENNA AND METHOD FOR THE CIRCUITAL TRANSLATION THEREOF

    Can't say that I can read the text. No real idea what morphological means here. The first figures look rather like fractal antennas, which have received some attention for a while, and can be searched. . The later figures that seem to simply copy shapes from nature, may have som motivation, but...
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    MORPHOLOGICAL ANTENNA AND METHOD FOR THE CIRCUITAL TRANSLATION THEREOF

    Sounds like a patent. Got a link or reference? Googling "morphological antenna" got me biological references.
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    represent the above sentences in first order predicate logic

    The wikipedia page on first order predicate logic says that there are multiple syntax options used in different places. No worries. It is common to learn something and believe that the syntax you learned is the only one possible or the approach you learned the only possible approach. . I'd also...
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    represent the above sentences in first order predicate logic

    Can you give us the parts you can do, so we have an idea of the specific syntax you are using and expecting. Predicate logic includes quantifiers, but usually things such as there exists (∃) & for all (∀). I am not an expert at this, but if your question is on how to express an exact quantifier...
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    synchronization

    Google mutex . Generally any process wanting to run the critical code or any other element that is not thread-safe, will check a flag to see whether it is currently being used. If not, then it will set the mutex flag, so others know it is being used, use the shared resource and remember to unset...
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    How is first figure drawn here in fuzzy logic? I know how second figure is drawn tho.

    Ok,I had watched it too; did the same as you. You said it better than I did. :)
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    How is first figure drawn here in fuzzy logic? I know how second figure is drawn tho.

    Bro, dude, chum, I think the first graph is another example, unrelated to the maths above. Short answer: You can't get the first figure from anywhere. It's an example. Poor slide? Yes. . It appears that he has not defined the membership function {} used in the maths. I can't see any obvious...
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    Dangling pointers

    The memory is not gone. It just no longer officially belongs to you, or to this main function. Nothing else has changed this memory, so the value is still there. Maybe try mallocing another variable with another pointer & see if it overlays the first one. Say set the new pointer to some other...
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    Didn't make a note of single subject in engineering, graduating soon what to do?

    He's not the only one who didn't understand. In my case, I still don't. . If you pass easily, not sure what you mean to ask. If you sold notes, perhaps you can buy some replacement notes, if you feel you need them. You would not be the first to value something only after it is gone. . If you...
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    I am having significnat Wi-Fi issues with a new Bluesound Node - can I add an external antenna?

    My android through the playstore offers several wifi analysers that will tell me the strength of available networks, without connecting. These will at least allow you to compare the levels seen to any other you might be able to see. For example if you can try a couple of meters form your one...
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    I am having significnat Wi-Fi issues with a new Bluesound Node - can I add an external antenna?

    Do you have an antenna with a UFL lead that you can just plug in?
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    Seeking inspiration for light sensing circuit

    Not quite sure what constraints you have, or how long "slow" is, but if you have your old smart phone, they make pretty good remote cameras for many purposes.
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    Determine Sampling

    Why? What's it for? If you really can't estimate the movement that you want to caprure & hence the maximum freiqnecyof interet, then , consider a model, ... One approach is to model it a little. Say we simulate the systems and use a very high sample rate. Then we filter the samples, down to...
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    Determine Sampling

    .. here read as sampling frequency of twice the max frequency, as in the text.
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