Subject:
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Re: Add motor driver to RCX
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Thu, 5 Aug 2004 02:01:30 GMT
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Viewed:
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3909 times
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In lugnet.robotics.rcx, Mark Bellis wrote:
> In lugnet.robotics.rcx, Morten Høgholm Pedersen wrote:
> > Have anyone tried to add an external motordriver to the RCX ports, so you
> > can use the powerful 3Amp motors from the 8366 RC car on the RCX?
>
> I'm working on a scheme to do that sort of thing.
>
> I propose to use opto-couplers with their LEDs in reverse parallel, connected to
> the RCX output, and their transistors driving a power H-bridge powered from a
> separate supply. I can't see any other way of using a bidirectional 300mA PWM
> signal to control a more powerful H-bridge.
What does this mean in electrical novice terms? What is an auto-coupler? Is it possible to modify the reciever/power unit to interface with the RCX? ie maybe add an inferred recuever to interpret commands from the rcx to power the motors directly from power supply of 8366
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Message is in Reply To:
 | | Re: Add motor driver to RCX
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| (...) I'm working on a scheme to do that sort of thing. I propose to use opto-couplers with their LEDs in reverse parallel, connected to the RCX output, and their transistors driving a power H-bridge powered from a separate supply. I can't see any (...) (20 years ago, 31-Jul-04, to lugnet.robotics.rcx)
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