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  1. Re: Need to drive 40 pins on variable change, is there a way to do it in elegant way?

    Board layout is very critical around the Xtal. Datasheet recommendations should be taken very seriously into account.

    Also load capacitance. The circuit inside the chip is designed with low power...
  2. Re: Need to drive 40 pins on variable change, is there a way to do it in elegant way?

    This comes in four different C load versions from 6 to 12,5 pF.

    Maybe you have wrong load capacitance.

    Also I suppose it is parallel loading, it is not noted in the pdf.

    Ioannis
  3. Re: Need to drive 40 pins on variable change, is there a way to do it in elegant way?

    Not all crystals are the same. Others are for serial resonant and others for parallel.

    Do you have the data sheet of the digikey ones?

    Ioannis
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    Re: 18F45K40 Can't set PORTD.1

    Hope too! I was there 15 years ago and was very impressed. Kebab it is then!

    When you get the board back, the test Henrik suggested would be very informative and interesting.

    Ioannis
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    Re: 18F45K40 Can't set PORTD.1

    What a nightmare this setup bits...

    Congrats Sayzer on your new mayor.

    Ioannis
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    Re: Nextion Touchscreen LCD User Interface

    Which issue was that?

    Your own "command codes", what are you using them for?

    Ioannis
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    Re: Nextion Touchscreen LCD User Interface

    It is good to know that we have an experienced user of Nextion here!

    Thanks for replying.

    Ioannis
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    Re: Nextion Touchscreen LCD User Interface

    I think they are the cheapest smart LCD with touch at the moment.

    Enhanced are faster (in screen fill with new image), more memory and with RTC among few others.

    One 7" enhanced has also...
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    Nextion Touchscreen LCD User Interface

    Recently I tried the Nextion 7" and 3.2" touch screen LCDs.

    They have a simple, not well documented, IDE that is hard to learn because you rely on YouTube tutorial videos of other users.

    The...
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    Re: Hserout3, hserout4, ...

    I suppose sayzer asks for a general command that will apply to all forthcoming chips maybe?

    If that can be realized in general for other peripherals like Hardware PWM etc it will be future proof....
  11. Re: with the pic16f628a off, a voltage on an1 comes out from main voltage pin, why?

    ok, since you have two power sources, your options are:

    1. The circuits above with transistors etc contrlled by the PIC itself.

    2. None of the above, just count a year or two and ask the user...
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    Re: Pickit3 -- hate the friggin thing

    I had enough with the IPE/MPLABX crap...

    Found an alternative to good ol' Stand alone Pickit2/Pickit3 software that was abandoned.

    A programmer developed in a basic variant the new/old Stand...
  13. Re: with the pic16f628a off, a voltage on an1 comes out from main voltage pin, why?

    Does the same battery power the PIC also? Or you have another bat?

    Ioannis
  14. Re: with the pic16f628a off, a voltage on an1 comes out from main voltage pin, why?

    I think MOSFETS have higher leakage current than say a BC85x series transistor.

    I did something similar using SMD version of the known BC557/BC547, the BC8xx series with very good results. More or...
  15. Re: with the pic16f628a off, a voltage on an1 comes out from main voltage pin, why?

    I still cannot understand why your battery is still connected to an1 input while your PIC is not powered.

    Ioannis
  16. Re: with the pic16f628a off, a voltage on an1 comes out from main voltage pin, why?

    And your circuit happens to have no power when battery is still connected to an input?

    Ioannis
  17. Re: with the pic16f628a off, a voltage on an1 comes out from main voltage pin, why?

    I would not put any voltage on the PIC inputs with no power on the the chip itself. Strange things can happen with the most obvious to run the program unintentionally.

    There is danger to destroy...
  18. Re: AD8302 Phase and magnitude to complex impedance

    Thanks for the info. Very interesting.

    Staying tuned to see how it evolves.

    Ioannis
  19. Re: AD8302 Phase and magnitude to complex impedance

    OK, and you say these are maths a PIC can do, at least easy?

    Ioannis
  20. Re: AD8302 Phase and magnitude to complex impedance

    To make thing more complicated, the antenna under test, should be far away from almost anything. Ground, cables, metals of any kind and sure yourself.

    So, how will you be able to, relatively easy,...
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    Re: 7-Seg display not counting

    I do not understand why you do calculate twice the minutes and seconds and then form the calculated values you do again

    B0 = D1 / 10 ' Find number of tens
    D1 = D1 // 10 ' Remove tens from W1
    ...
  22. Re: DC Motor constant speed controller, is Picbasic fast enough?

    I suppose you will use a PID control, right?

    This has been already implemented thanks to incPID include file by Henrik Olsson:

    http://www.picbasic.co.uk/forum/showthread.php?t=5874

    Ioannis
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    Re: PIC to PIC (3 digit LED display)

    Measure between the two +5 volts of the PIC power and see what voltage difference you have there.

    From +5 of the one PIC to the +5 of the other. No ground.

    Ioannis
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    Re: 7-Seg display not counting

    I would keep it simple.

    Two digits for all. If values is <9 then add a leading 0 to keep it two digits.

    So no moving dot point.

    Ioannis
  25. Re: Need to drive 40 pins on variable change, is there a way to do it in elegant way?

    OK, which part you missed? Come on now... Your presentation is great.

    Ioannis
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