Excuse me? I think you might have mistaken me for someone else my friend. I have made no references to any websites in this thread.Originally Posted by Dodgy Geezer
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Excuse me? I think you might have mistaken me for someone else my friend. I have made no references to any websites in this thread.
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Apologies for the confusion. What I meant to put over was:
I - refered to the website I got the stepper driver code I am using from (referenced in my first post.
You - said "Your reference to the website incurred me to think you found this code rather than wrote it..."
I - was trying to point out that I HAD found the code rather than created it.
However, I have now found out that no PC software-only scope using the sound card will provide a DC service, so I am no further forward...
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One other thing to look at is balance - if you scope is out of balance it will become hard to drive the scope in RA, especially if you are increasing the frequency of the steps as this provides less time to energise the coils in the stepper.
One thing to try is modifying the drive / code for a 4 step motor.
Found a pdf that explains the theory behind increasing speed and the drop off of tourque http://www.national.com/an/AN/AN-828.pdf
Last edited by malc-c; - 3rd April 2008 at 19:05.
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Bypass the coupling cap on the SND card and you'll have a DC scopeHowever, I have now found out that no PC software-only scope using the sound card will provide a DC service, so I am no further forward...
Last edited by T.Jackson; - 4th April 2008 at 06:36.
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There's always an old scope somewhere... a good ol' 20Mhz dual channel is still good enough for many purpose. Sure you can found one for ~50$ used. There's still some USB model available here and there... and finnally there's some PC card.
But.. hey wait a minute... sure you have a TV? You could try to build this one... based on PIC12F675
http://www.dos4ever.com/uscope/uscope_e.html
i always been amazed of that... never tested it though...yeah limited... but come on.. it's a PIC12F675!!!
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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You've got some brass ones mister_e, I'll give you that much. Why in the world are you advertising PBP for? Are you aware that this forum is owned & run by a company which sells this product?
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WTF is going on with you Trent? If you have any anger... buy yourself a dog, find friends, consult a psychologist, drop me PM or e-mail directly!
Last edited by mister_e; - 4th April 2008 at 16:57.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
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---Insert that cool little spinning 6 pack GIF here...of darn good beer...keep it near...to your ear...and don't fall...on your rear...by a deer...ok I'm done---
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You're absolutely right mister_e, I shouldn't be taking my frustrations out on you, I do apologize. You must understand that I have a lot on my plate at the moment -- the Australian secret service is busting my balls for me to come up with an electronic device to help catch pedophiles. My life depends on this project, they're pushing me real hard for this.
Perhaps you might be able to help me, mister_e -- got any ideas on how to achieve something like this?
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