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  1. Re: Can we make a digital pot simulate a much larger value?

    Thanks for that, i was hoping "No" wasn't going to be the answer, and making a pot with several fets and resistors becomes too large and and defeats the purpose.
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    Re: Which processor are used in satellite ?

    That's classified information to prevent hackers taking over satellite services. I imagine you would like to try that too?
  3. Can we make a digital pot simulate a much larger value?

    Hi All

    I want to replace some old legacy analog pots with modern digital pot(chips) such as the microchip MCP4xxx range.
    This ‎will then allow me to control the pot values from a remote panel or...
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    Re: Where can i buy PICs using Paypal?????

    damn damn damn damn...Futurlec don't carry them in stock, even though the site says "in stock", it's taken me a month of waiting and now getting emails about "sorry we dont have stock"

    still...
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    Re: Where can i buy PICs using Paypal?????

    Thanks, i forgot about them, and they have low prices on chips AND postage.
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    Re: Where can i buy PICs using Paypal?????

    Looking specifically for:

    PIC18F25k22 (28pin DIP)

    PIC18F45k22 (40pin DIP)

    No SMD's please..


    sigh....
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    Re: Where can i buy PICs using Paypal?????

    Yes, my paypal is linked to my bank account, i have no cards.

    I tried mouser, i tried buying 10 chips, approx $40 total (for 2 types), then they wanted $70 postage/handling....i shut that site...
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    Re: Where can i buy PICs using Paypal?????

    Regarding fake PICs from chinese ebay sellers (amongst all the other IC's and transistors they mass produce without dies inside)

    It's not such a big deal to lose the money as long as they're small...
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    Re: Where can i buy PICs using Paypal?????

    Nope, Paypal isn't even an option amongst the visacard options etc...must be a local thing as u said..
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    Re: Where can i buy PICs using Paypal?????

    Fakes.............
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    Where can i buy PICs using Paypal?????

    Hi All,

    I'm in Australia and I don't have a credit card.... i live debt/credit free (lucky me).
    The downside is i can't buy things online unless it's via Paypal.

    Can anyone point me to a PIC...
  12. Re: What's the best code loop-structure to handle multiple tasks without interruption

    Thanx so much for everyones input, something for me to consider and learn mroe about, i'd never even heard of co-opeartive multitasking, let along how to implement it in a pic/picaxe lol. (more...
  13. Re: What's the best code loop-structure to handle multiple tasks without interruption

    Yes, perhaps i was looking at it all "backwards" hence my overall question of how people prefer to keep busy code running smoothly ;-)
  14. Re: What's the best code loop-structure to handle multiple tasks without interruption

    I guess what i'm really asking is how to setup my loop(s) in an order from most-used tasks (update LEDs) to least-used tasks (read pots/switches) and process them all in a way that keep it running...
  15. What's the best code loop-structure to handle multiple tasks without interruption?

    Hi All,

    I'm looking for help on the best way to structure code that has multiple tasks happening, while not interrupting or slowing the overall operation at any given time.
    For example, i want to...
  16. Re: Timing diagram for MSGEQ7 spectrum analyzer chip, is it correct?

    Just thought i'd mention you're using 18uSecs for your strobe pulses....

    Looking at the diagram, 18uS is the MINIMUM duration, so you're right on the edge of it not strobing, or being intermittent...
  17. Re: Timing diagram for MSGEQ7 spectrum analyzer chip, is it correct?

    wow, that's a lot of junk going on ;-)
    thanks.
  18. Re: Timing diagram for MSGEQ7 spectrum analyzer chip, is it correct?

    Excuse my ignorance, but what's the alternative to setting bits without using high/low?
    Is it preferable just to use "PORTB.1 = 1" etc?

    Regards,
    Marty.
  19. Re: I need to play with Nibbles, am i on the right track?

    Hmmm, i'll need to read all that a few times to sink in lol

    Basically, i have 4 variables i'm using, but i'm only using data in the LSB of each variable, so the values only range from $00 to $0F,...
  20. Re: I need to play with Nibbles, am i on the right track?

    oh, i may have answered my own question now.....

    Since working with 8bit bytes etc, maybe is should just isolate my variables?
    something like

    LO_nibble = PortB & %00001111, for READING LSB...
  21. I need to play with Nibbles, am i on the right track?

    Hi All,

    I have some code that works around using 4bit(nibbles) to process the code.

    Since there's no 'Nibble" option when configuring the VAR varaiables i wonder how i go about accessing 1/2...
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    Re: OLED Display Noise problem

    I recall most LCD's have a "cursor off" command? (i believe the OLED replacements for LCD's should also have cursor-off too).

    Turn the cursor off at the beginning of your code, just after the LCD...
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    Re: Is there an ICSP pinout standard???

    I'd be concerned about potentially driving 13volts/Mclr onto the PGC/D pin if the 5pin header was reversed ;-(

    I think the ultimate solution for a non-keyed connector would be using an 8pin...
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    Re: Is there an ICSP pinout standard???

    Thanks Sheldon, makes perfect sense.


    Yes, i had no intention of using the VCC to provide power to the chip, so i was down to 4 pins myself ;-)

    I guess i can use an indexed 4pin header so...
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    Re: Best USB programmer for ICSP ???

    Thanks Dwight, but i have some harware/chips on order already.

    I'm in downunder Australia anyway ;-)

    Thanks to everyones comments, it's cleared a lot up for me to start moving forward.
    ...
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