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  1. Replies
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    Re: Loop issues

    Ioannis, more a "select case" study programming example :D

    Cheers
    Barry
  2. Replies
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    Re: Slowing down a clothes dryer

    The drum of a clothes dryer is belt driven.
    If you are looking for a slower, but fixed, rotational speed it might be easier to reduce the diameter of the pulley on the motor to achieve the desired...
  3. Thread: Goodbye

    by Aussie Barry
    Replies
    58
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    71,906

    Re: Goodbye

    Members seem keen on the "C" language path based on the number of questions and responses regarding available books for beginners.
    I too am progressing down this path and note there is a distinct...
  4. Replies
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    17,879

    Re: Figured Out MPLAB X

    Hi Art,

    Are you saying that by following the five steps outlined in your last post, a person will end up with a full version of XC8 - with all the bells and whistles?

    Cheers
    Barry
    VK2XBP
  5. Replies
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    17,910

    Re: PIC16F1503 Fixed Voltage Reference

    Thanks Richard.

    The PIC is being fed via a liner regulator so I am not that interested in reading Vdd.
    I want to read the battery voltage feeding this 5V linear reg. The battery also feeds a 6V...
  6. Replies
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    17,910

    Re: PIC16F1503 Fixed Voltage Reference

    That is EXACTLY what I am trying to do!
    I have looked at PIC16F1703, PIC16F1823 and the one you recommended, PIC16F18323 - all are pin compatible and have the ability to set the FVR as the reference...
  7. Replies
    10
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    17,910

    Re: PIC16F1503 Fixed Voltage Reference

    the exact same wording is used in the PIC16F1829 datasheet yet that device DOES have the option to set the ADC Vref+ to the internal FVR module (ADPREF<1:0> = 11) :mad:

    Some consistency would be a...
  8. Replies
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    17,910

    Re: PIC16F1503 Fixed Voltage Reference

    Hi Richard,

    Yes, I see that now but contradictory to this diagram, the datasheet also states that the output of the FVR can be configured to supply a reference voltage to the ADC input channel:
    ...
  9. Replies
    10
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    17,910

    PIC16F1503 Fixed Voltage Reference

    Hi All,

    I am working with a PIC16F1503 and would like to use the Fixed Voltage Reference (FVR) as the reference for the ADC.
    I have successfully done this in the past using a PIC16F1829 but the...
  10. Replies
    7
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    4,310

    Re: I2C read and write to 24C01 eeprom

    Hi Richard,

    I did a project a while ago which stored word values to a 24LC02 EEPROM.
    The only way I could get it to work was to use the lowbyte and highbyte method that Scampy mentioned.

    Can...
  11. Replies
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    3,361

    Re: Help with RTCC Module - 18F26J50

    Thanks Henrik and Richard for responding to my post so quickly.

    Henrik - your speculation and my speculation differ. Thanks for offering an opinion.

    Richard - I set the T1CON register that way...
  12. Replies
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    3,361

    Help with RTCC Module - 18F26J50

    Hi All,

    I am having difficulties getting a 1Hz pulse from the output of the RTCC module on a PIC18F26J50.
    I have a 32.768kHz signal being fed directly to the T1CKI input from my signal generator...
  13. Re: Help with PORTB Interrupt On Change Please

    Thanks Richard.

    It was the xor process that I was missing.

    Cheers
    Barry
    VK2XBP
  14. Help with PORTB Interrupt On Change Please

    Hi All,

    I am looking to use PORTB Interrupt On Change on a PIC18F26J50 but can't get my head around how to determine which pin (PORTB.4 - 7) caused the interrupt.
    I would like to set up four...
  15. Re: FREQOUT command for continuous operation

    Hi Art,

    Yes, the PWM output is passed through a second order low pass filter. In my case I used a Sallen-Key LPF.

    Cheers
    Barry
    VK2XBP
  16. Replies
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    3,142

    Re: Pullup confusion 12c508a

    Hi Michael,

    The PIC12C508A doesn't have a PORTB so your WPUB statement will obviously create an error.
    As mark_s has already stated, setting option register bit 6 to 0 will enable weak pull ups...
  17. Re: FREQOUT command for continuous operation

    Hi All,

    I am pleased to advise that I now have a very nice sine wave output from my PIC12F1822.
    I dropped the FREQOUT approach and went with the lookup table method instead.

    Thanks to all who...
  18. Re: FREQOUT command for continuous operation

    Thanks Richard.

    Your sine lu table appears non-symmetrical. Have you done this for a reason?

    Cheers
    Barry
    VK2XBP
  19. Re: FREQOUT command for continuous operation

    Thanks Henrik and Art for your responses.

    Two things that should have been revealed in my original post:

    1/. The trial code using PIC12F615 was only done because I had that particular chip on...
  20. FREQOUT command for continuous operation

    Hi All,

    I am looking to generate a continuous 50Hz sine wave output using the FREQOUT command.
    From the "good book", the command is FREQOUT, Pin, Onms, Frequency1, {Frequency2}
    My initial idea...
  21. Re: how to get an analog potentiometer to settle down?

    Try adding a bit of capacitance from the wiper of the pot to ground - say 100nF.
    This should minimise some of the variations you are experiencing.

    Cheers
    Barry
    VK2XBP
  22. Replies
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    Re: Where can i buy PICs using Paypal?????

    Jaycar Electronics also sell a small selection of 8-bit pic's that you can buy over the counter for cash
  23. Replies
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    12,277

    Re: How to make HPWM slower with 16F887?

    Hi Henrik,

    I agree with your comment however it should be noted that a lot of people can still see the LED blinking at these rates. In fact, a small percentage of the population can still see LEDs...
  24. Replies
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    33,686

    Re: Multi-Button CSM with Pic16LF722A

    Hi All,

    Has anyone had any experience with a 2 channel CSM slide switch?
    I would like to implement a slide switch rather than an up / down button arrangement to select the PWM output for a LED...
  25. Replies
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    33,686

    Re: Multi-Button CSM with Pic16LF722A

    Hi Richard,

    Thank you for your very clear and concise explanation.

    When you store the data, what does "DW" refer to?
    In the example you use "@ DW" however in previous code snippets you use "@...
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