Subject:
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Re: Use RCX motor output to switch devices
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 30 Aug 2002 14:23:12 GMT
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Viewed:
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803 times
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Thanks for the help, Mark!
I have a few questions still (I'm a novice at electronics).
In lugnet.robotics, Mark Riley writes:
> ...
> The transistor is easy to find (Radio Shack in the U.S. carries it).
I live in The Netherlands, so instead of Radio Shack I buy at Conrad. Is
there a universal transistor description in this case?
> ...
> it's important to keep the transistor in saturation to avoid it overheating.
What does "in saturation" mean exactly?
> ...
> Also, don't try to hook up more than one switched device to the RCX in this fashion.
The transitor will blow up (overheat), because of the large current (I)
through it?
> ...
> To be safe try the circuit first by connecting it to a 9v
> battery box (try both polarities).
I was planning on doing that. I have a 9.6V, 300mA powersupply, I suppose
that works just as well for testing purposes.
Thanks again!
Grtz.,
Remko
P.S. more info on my project can be found in this thread:
http://news.lugnet.com/robotics/?n=18204
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Message has 2 Replies:
 | | Re: Use RCX motor output to switch devices
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| "Da Byte" <dabyte@hotmail.com> wrote in message news:H1nuMp.CMK@lugnet.com... (...) Try looking for 2N2222A. 2N4401 should also work. They're both fairly common. (...) overheating. (...) Sorry... basicly, it means "fully on". When the transistor is (...) (22 years ago, 30-Aug-02, to lugnet.robotics)
| | | Re: Use RCX motor output to switch devices
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| In an e-mail Eric send me the following info, for which many thanks. -----Oorspronkelijk bericht----- Van: Da Byte [mailto:dabyte@hotmail.com] Verzonden: vrijdag 30 augustus 2002 16:23 Aan: lugnet.robotics@lugnet.com Onderwerp: Re: Use RCX motor (...) (22 years ago, 31-Aug-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: Use RCX motor output to switch devices
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| Oh yeah, I forgot to add my usual disclaimer for things of this nature: Do it at your own risk. If things aren't connected up quite right, you could fry your RCX. To be safe try the circuit first by connecting it to a 9v battery box (try both (...) (22 years ago, 30-Aug-02, to lugnet.robotics)
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