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    lecture de la température d'un capteur LM35 et l'afficher sur une LCD en utilisant deux pic 16F88 vi

    How far have you got? Not sure that anyone will do this "for you", but people might help, if you have specific questions or problem areas.
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    Perpetual moving sticks

    It will have sensor(s) & actuator(s). Can you indicate where the parts you illustrate come from in the structure?
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    Perpetual moving sticks

    perpetual sticks? A link to what it is & what it does?
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    Best IC Assortment, both Linear and Logic.

    Which way will you go first? Are you into analog or digital, discrete or processors, RF, audio or power? . Maybe search for some tuorials or schematics of circuits you'd like to make & they will give you an idea of the types that appeal first.
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    Hello - 1st Time Posting - Need Advice

    pin headers? ok I buy in bags of many of Aliexpress. Tend to be self-assembly. The quality of the crimp-tool can make a big difference to how easily they come together. There are many places to get singles alreasy assembled. Maybe 1x2. If its tow-ended, then f-f, f-m, & m-m options. Used widely...
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    Class D audio amp

    I'm not sure whether this is what WHONOES meant, but here's one view of the difference. The first two plots show two cases of a triangle threshold waveform. The first with an instantaneous signal level of 0.0; the second with signal level 0.5. The purple trace shows the fundamental of the...
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    Class D audio amp

    Actually, now that I have taken time to actually read some of the offered paper, it does introduce these concepts, natural versus uniform sampling, on page 9 and explains it somewhat. In my terms, each upward or downward slope of your sawtooth takes a single sample between the times of the...
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    Class D audio amp

    Sorry, I assume this was a bit of a theoretical aside, of little practical impact. . It's a one-bit converter with "natural sampling". That is, the edges occur when the waveform crosses a threshold, there is no pre-defined sample time nor sample-and-hold as might be more normal in conversion...
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    Hello - 1st Time Posting - Need Advice

    A "jack" is usually a specific type of connector, as might plug hedphones into a stereo or a phone. Is this what you want? If so searching those suppliers for the combination of connector type termination type and is what people do. Generally using the image provided for confirmation, and check...
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    Class D audio amp

    It's been some time since I worked in this stuff, but from memory, the comparator without sample-and-hold implements what was called "natural sampling" which has advantages. Since the effective sampling rate is not significantly higher than the signal (low-pass) bandwidth, this may have some...
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    The observer effect

    Nope. You can't detect/observe without disturbing the field. It was not the observer, but the act of observing and the effect of that.
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    Need Help With Microcode Instructions

    It appears to be just an exercise of going through each step, one by one and assigning the correct values to route the right registers to the ALU and back to the correct registers. Just as in any problem for setting digital muxes as in creating microcode to do operations. . Not trivialising your...
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    Need Help With Microcode Instructions

    That was a cool exercise. Many thanks. . Nice try though. Give us an idea where you are stuck? How about the first one. SP++. What does the question mean? How does it relate to the figures, first & second?
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    Lm339 output

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    Lm339 output

    The data says that the ouput will sink typically 16mA with test conditions being that the device Vo not exceed 1.5 volts. The Saturation voltage spec says typically 130mV, max 400mV at a test current of 4mA. . This does not sound too far off what you got if you consider the 15mA output current...
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    Project design with minimum cost

    Wemo + Sonoff + free apps. or Wemo + smart bulbs + free apps. . Development costs frequently means use what's available. It's expensive to reinvent the wheel. How? The normal ways. You do the sums :) Each option gets an estimate of unit cost, manufacture cost & development costs & support...
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    ECG EKG sensor protection - diodes

    Perhaps even just low pass filter. . Do you know whether the influenece on the ECG/EKG only the stimulation directly, or perhaps resulting EMG from a reaction to the stimulation. In other words, do you know whether the interference overloading the ECG is the same signal as the stimulation or...
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    Custom Sound Detection

    There is lots of work in this sort of area. Distributed sensor networks are often another way to approach the localisation problem: Trade complicated direction-capable sensors for known locations of multiple sensors. I have seen several vaguely similar projects in New Zealand. A coule of the...
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    Networks Of Multivibrators

    555 timers. At $0.50 they are a popular choice, even if their current consumption while switching gets some negative comments. Googling 555 timers gets lists of projects devoted to these guys.
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    Networks Of Multivibrators

    Distributed Synchronization of Electronic Fireflies - The Ohio ... https://www2.ece.ohio-state.edu/~passino/fireflyfolder/EE683report.pdf ?
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