Subject:
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Re: Make Your Own HiTechnic Style Radio Control?
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 9 May 2003 05:27:38 GMT
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Viewed:
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1677 times
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> There are circuits that do exactly as you suggest. They are Radio Control
> Model Car 'Electronic Speed Controls'(ESC). Some are designed for forward and
> reverse operation. That is what is needed to get the linear operation
> mentioned in your point 4. The voltage limitation is resolved because most
> ESCs can take up to 8 cells (9.8 volts) and they do provide the correct voltage
> for the receiver. The cost of ESCs have dropped and used ones are probably
> available. I have not tried one but I plan to. I'll let you know how they
> work out.
DOH!
Now I'm really embaressed :) Why didn't I think of that? It's so obviuos! And
I've always been the black sheap of the family, prefering RC cars before planes
(never owned a electric one though)...
*sigh*
> An example of the kind of ESC that I think will work is sold by Hobby People.
> It is their Mtroniks Eco 20. See it at:
> http://hobbypeople.net/gallery/159120.asp
Oh! It's water proof! :)
I have to research this later! I was considering bying micro servos to save
space in my creations but now I can go for ESC's directly - the cost should be
about the same.
A HUGE thanks!
Best regards,
/Tobbe
http://www.lotek.nu
(remove SPAM when e-mailing)
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Message is in Reply To:
 | | Re: Make Your Own HiTechnic Style Radio Control?
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| (...) how (...) ideal (...) using (...) Tobbe, Your comments are right on. The way the servo card controls the Lego motor is as you described except that the circuit has so much "gain" that the motor is almost full ON when the stick is on either (...) (21 years ago, 8-May-03, to lugnet.technic)
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