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  1. Replies
    17
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    625

    some clarity is needed, how many rotations would...

    some clarity is needed, how many rotations would be needed for 1". for the macro rail I built that would be about 63 turns of the lead screw (and it has 1/64 micro stepping).
    You also need ensure...
  2. Replies
    7
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    207

    I was tempted to make the swap, but as it happens...

    I was tempted to make the swap, but as it happens the little light box timer works exactly as needed. and for keeping costs down as much as possible the M2 fitted the bill nicely.

    The one I do...
  3. Replies
    22
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    1,112

    this is just 1 reason to keep your machines up to...

    this is just 1 reason to keep your machines up to date and to keep regular secure backups.
    when I say secure I mean on a USB hard drive. this will allow a reformat with minimal loss (or risk) of...
  4. Replies
    7
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    207

    using pulsout, but having just tested as a matter...

    using pulsout, but having just tested as a matter of course it seems pretty spot of over 2 minutes by comparison to my watch.
    The thing doesn't need to be 100% accurate and I cant see it being used...
  5. Replies
    12
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    455

    I did a project not long back the involved send...

    I did a project not long back the involved send simple pulses at start up. The pulses were sent from other 08m2s along a chain of 08m2s and a fairly sizeable pause was needed to ensure that all of...
  6. Replies
    7
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    207

    noticed while using a 20M2 with all the pins...

    noticed while using a 20M2 with all the pins occupied.
    its not really an issue more of an observation. It would have just made things a little more convenient in places

    although as it happens I...
  7. Replies
    7
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    207

    Internal Interrupts

    While working on the software for the light box timer and thinking about polling variables to check if the desired time has been met, I thought that it would be easier to just poll a single variable....
  8. Replies
    5
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    284

    thanks pxgator. The reason for using this...

    thanks pxgator.
    The reason for using this display is simply for the reason that I have in my parts draw. Most of the displays I need either need to show more complex information, need to be larger...
  9. Replies
    5
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    284

    Regulator recomendation

    I am just designing up a quick timer for my light box, the plan is to run everything off the cheap ebay laptop power supply that currently powers the 235 LEDs
    It provides 18v 3.5 amps, the circuit...
  10. I have never personally used it, even with the...

    I have never personally used it, even with the 28x2 being used for a fair amount of playing around in a few projects (I find its got enough pins without it).
    Its serial out so it wont be looking for...
  11. Replies
    12
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    619

    No worries, glad it helped at least one person. ...

    No worries, glad it helped at least one person.

    Also erco, pretty sure I should be drunk more often as it makes life, well my suffering of the less intellectually inclined (read dumb donkys)...
  12. Replies
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    619

    Reverse Voltage protection

    Came across this, and although we all (I assume) try and avoid reverse voltage, thought it maybe handy for someone here

    https://www.youtube.com/watch?v=IrB-FPcv1Dc
  13. Replies
    14
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    623

    so essentially a couple of switch mode power...

    so essentially a couple of switch mode power supplies.
    How are you going to check for everything being correct?
    In theory there is no reason why you cant have the picaxe monitor and automatically...
  14. Replies
    14
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    623

    From my limited experience with nitro engines I...

    From my limited experience with nitro engines I think allycat has it right, and a P channel power MOSFET would be needed.

    I have just built a clock, using some IRF9520, one that happily switches...
  15. Replies
    4
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    260

    never used that, but a standard multiplex button...

    never used that, but a standard multiplex button attachment would seem to fi the bill, will need 7 pins for that.
    4 rows to the reaming port b, 3 columns to input on port c. switch one row high,...
  16. I knew I would get at least something wrong,...

    I knew I would get at least something wrong, however as an example to how the pins can be dynamically changed - which I what I got f(possibly incorrectly) rom the op - should at least get something...
  17. Replies
    29
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    1,641

    hey marks, I actually wrote the BST code on the...

    hey marks, I actually wrote the BST code on the 25th, final code structure was completely different but works really quite nicely.
    It sets the a flag which is checked on each loop of the main...
  18. the way you do this may well depend on what you...

    the way you do this may well depend on what you are trying to achieve.
    When I built the Charlieplex clock I learnt that you can just


    output {pin}
    [/code

    [code]
    input {pin}
  19. just a quick question before we all get overly...

    just a quick question before we all get overly involved with issues that may exist with HPWM, how are you driving the MOSFETs?
    quite often when they are driving large currents and voltages they need...
  20. I assumed that it had been navigating the rings...

    I assumed that it had been navigating the rings up to this point by itself, or at least mapping them to some point. being so far away mean that some form of independent object avoidance would be...
  21. everything exerts a gravitational force, so by...

    everything exerts a gravitational force, so by measuring the change of speed (ie acceleration in either a positive or negative aspect)
    we know the gravitational constant, as a result my guess would...
  22. Replies
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    1,641

    its a loose bit of code, no where near complete,...

    its a loose bit of code, no where near complete, a very similar piece of code could be used to set a flag for BST and the flag check each time the RTC is checked. But the issue is that, that flag...
  23. Replies
    29
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    1,641

    Martin, I have been using time.is The item was...

    Martin, I have been using time.is

    The item was intended to use a DS3231 and have the radio clock to keep the thing in check. But if I am completely honest the Charlieplex clock is still absolutely...
  24. Replies
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    1,641

    As it happens hippy, my project room contains...

    As it happens hippy, my project room contains three computers (one for writing and testing code, a small server and my main rig which is a bit of a beast).
    The project needs to be complete fairly...
  25. Replies
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    1,641

    Hippy your code needed to polarity set to 0...

    Hippy your code needed to polarity set to 0 before I got anything more than unending "-" and the odd 1. But even then the results were inconsistent. Think its a by product of location - something I...
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