Search:

Type: Posts; User: John Drew

Page 1 of 3 1 2 3

Search: Search took 0.05 seconds.

  1. Replies
    1
    Views
    2

    Re: XTAL value for internal OSC 31KHz...

    From the Manual:
    Oscillator Frequency Declare.
    12-bit core device XTAL values:
    Declare Xtal 4, 8, 10, 12, 16, or 20.

    Standard 14-bit core device XTAL values:
    Declare Xtal 3, 4, 7, 8, 10, 12,...
  2. Replies
    6
    Views
    7

    Re: Push or pull on fan

    Tim,
    Working from your original post the key point is that when the fan is 'sucking' (I'll use that word for convenience) it's drawing in air from a large area - side as well as front because it's...
  3. Replies
    1
    Views
    2

    Re: Supported Devices

    I made that list a couple of years back. To create it I wrote a program in Delphi that found the PPI files and generated the list.
    I will update it some time in the next few weeks - I have to find...
  4. Re: AD9833 calculating tuning hex values/writing to registers

    Hello Anthony,
    Would you create a WIKI article please? Things get lost on the forum and the WIKI makes it easy to find in future. I don't want to do it myself as then you wouldn't be able to edit it...
  5. Re: Getting old, need help on suitability ttl vers RS232

    I've tested TTL in a 100metre roll of CAT5 cable. I used a simple checksum in the data packet. Excellent results and seemingly no lost packets. I then used it in a real situation using 20 metres of...
  6. Replies
    0
    Views
    1

    Microstick 11

    I see that Microchip have the Microstick 11 for sale with 34% off if you use this code: Coupon Code: TP1745
    It's a great way to learn how to use the P24 series. MPLAB 8.92 supports direct...
  7. Replies
    4
    Views
    5

    Re: New User Introduction

    Welcome Barry,
    There are quite a few Aussie users on the forum. Great levels of programming and hardware support from everyone here and especially the developer, Les.
    I live in Millicent, South...
  8. Replies
    10
    Views
    11

    Re: Persistence freq for Led Bargraph

    A bit more to this than meets the eye :) That's a dreadful pun John.
    As the bar is cycling through say 12 LEDs then effectively the on time is 1/12. This will aggravate flicker. The 25Hz figure is...
  9. Replies
    10
    Views
    11

    Re: Persistence freq for Led Bargraph

    Tv works on at least 25 Hz
    John
  10. Replies
    9
    Views
    10

    Re: Bike wheel lights go battery-less

    As Ken wrote it would be a piece of cake to generate a message as the pulse when the coil passed the magnet could be used for synchonisation. It would be an incentive to keep fit though as bike...
  11. Replies
    3
    Views
    4

    Re: Variable strange behavior

    Nex, what do you mean doesn't work?
    Without more information it is not possible to help.
    Can you write a small program that shows the problem as Tim has suggested?
    John
  12. Replies
    8
    Views
    1,692

    Re: Help With OLED Display / 128X64 SSD1306

    Hi basparky,
    Time for that Wiki article, it's too useful to have it lost in the forum. :)
    Cheers
    John
  13. Replies
    19
    Views
    20

    Re: Numeric conversion trouble

    That's helpful Nex.
    I'll have a try at a different solution. Might be a day or two.
    John
  14. Replies
    19
    Views
    20

    Re: Numeric conversion trouble

    In order to understand what is going on I need to understand the structure of the number you are bringing in.
    You provide two samples and attempt to place them in a 2 byte variable - a Word. As...
  15. Replies
    16
    Views
    17

    Re: Support for Les... a change of heart?

    I'm of the same mind George. If a part has been made for an Arduino I know I can make it work with a PIC.
    Another positive now is that when Les has his new compiler working it is an opportunity...
  16. Replies
    16
    Views
    17

    Re: Support for Les... a change of heart?

    Donation sent. I have used the compiler since the days of LETbasic and haven't contributed any money for some years. It's time.
    I've had a huge amount of fun using it and as my software projects...
  17. Replies
    24
    Views
    25

    Re: MCP23017 port pin expander not working

    G'day David,
    At the risk of muddying the waters, this is how I set things up. It's for a keypad and some other functions.
    John




    Symbol Column1 = 11100000 'note negative logic to...
  18. Replies
    24
    Views
    25

    Re: MCP23017 port pin expander not working

    David,
    Here's some of the code I use. Bit disjointed as it's extracted from different bits of my program but:

    I2CMCP23017two = 001100 'address of second expander $4C (forum's removed the % etc...
  19. Thread: Forum slow

    by John Drew
    Replies
    9
    Views
    10

    Re: Forum slow

    Back to normal this morning. Thanks for the responses everyone.
    I had tried both my fixed and mobile ISPs and they could access other sites quickly but not my favourite.
    If it happens again I'll...
  20. Thread: Forum slow

    by John Drew
    Replies
    9
    Views
    10

    Forum slow

    Is anyone else experiencing a very slow forum?
    My Firefox browser spends a lot of time trying to get data from geoplugin.net and then cdn.jquerytools.org before then quickly accessing the next forum...
  21. Replies
    16
    Views
    17

    Re: Support for Les... a change of heart?

    Sounds good. I've got to wait until my bank transfers some money into Paypal - takes 2-5 days, I don't know why it takes so long. Then I'll be contributing.
    John
  22. Replies
    19
    Views
    20

    Re: Numeric conversion trouble

    Further to George's comment, for example if y=3 then you are shifting the value left by 24 bits - there will be nothing left of your result if NumericVal is a word.
    You don't say how you know 0D...
  23. Thread: DELAY read

    by John Drew
    Replies
    11
    Views
    12

    Re: DELAY read

    I don't think that is Teo's question. He wants to be able to monitor the timer's loop so if a certain condition (a=1) happens he can know the period. I don't think he is worrying about accuracy...
  24. Re: Merry Christmas and Happy New Year Les!!!

    Strongly agree with everything said. I add another benefit. As I approach 80 I need to keep my mind active and challenged. Dementia is in my genes and I know that exercising the brain is equally...
  25. Replies
    51
    Views
    1,053

    Re: BME280 Humidity/Pressure/Temperature code

    I suppose if it's a 'one of' then it's fine to tweak the maths. If it's for production it's going to be a pain even with a calibrate function.
    John
  26. Thread: DELAY read

    by John Drew
    Replies
    11
    Views
    12

    Re: DELAY read

    Hello Teo
    I use a workaround.

    For I=1 to 1000
    Delayms 1
    Gosub Checksomething
    If result = X then do something else
    Next

    It's not what you asked, it's one for Les or someone who can...
  27. Replies
    10
    Views
    861

    Re: VL53L0X laser-ranging sensor

    Now published.
    John
  28. Replies
    13
    Views
    14

    Re: Thanks for the Holiday Theme, Lester!

    I hope you get a break and a great family time for Christmas Lester.

    All the best wishes to my forum friends.
    John in Oz.
  29. Re: Generating pulsing signals using Arduino millis()-like method

    Hmm, you're right. You can add a zipped file with the colour but not just insert a colour file.
    You can go through a post with no colour and add colour using highlight with the mouse and then use...
  30. Re: Generating pulsing signals using Arduino millis()-like method

    I'll get back to you. On my phone at present and won't be able to access my computer until tomorrow.
    John
  31. Re: Generating pulsing signals using Arduino millis()-like method

    Useful code IstvanK. How about creating an article on the WIKI as it's easily lost here on the forum?
    John
  32. Replies
    6
    Views
    7

    Re: 18(L)F25/26K83 support

    Well, they (valves) bite Charlie. And they bit me a lot when I was young. I'm a slow learner, especially when some had a grid connection on the top for touching to see if they were working and some...
  33. Replies
    15
    Views
    16

    Re: 3.6.0.3 and HIGHLOW_TRIS_REVERSE ??

    OK , I understand the issue more clearly now and can see the problem - but not a solution. We'll have to wait for the guru methinks.
    John
  34. Replies
    15
    Views
    16

    Re: 3.6.0.3 and HIGHLOW_TRIS_REVERSE ??

    I'm probably wrong but I thought the tris was automatically changed when you either input or output to a port. I may have not understood the original issue.
    John
  35. Replies
    30
    Views
    31

    Re: UltraEdit adaption.

    To quote a saying "There's more than one way to skin a cat".
    But not your cat Les, yours should be pampered :)
    John
Results 1 to 35 of 100
Page 1 of 3 1 2 3