Subject:
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Re: Questions about unoficial (?) use of electrical LEGO parts
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 1 Mar 2000 10:29:19 GMT
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Original-From:
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Marco C. <MARCO@SOPORCELsaynotospam.PT>
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Viewed:
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2302 times
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At 19:19 29-02-2000 +0100, Thomas Christiansen wrote:
> I wouldn't advice you to connect the Cybermaster directly to the RCX,
> you should use an optocoupler or similar...
Hi Thomas :)
hmmm... well, I always thought so, but thinking something along the lines of:
"Well, LEGO's for Kids, and kids make mistakes (adults too, eheh), so
wouldn't LEGO prepare the INPUT's to withstand a "mistake" of such a
connection ?"
John has the some opinion:
At 13:38 29-02-2000 +0000, John Barnes wrote:
> Hi !
>
> My impression would be that the engineers at Lego would design the
> input circuitry in the RCX to be very robust. Since the the input swings
> upto 8 volts anyhow during the power phase, I would not expect damage
> to occur if you connect an output to an input. I'm sure one of the
> first things the Lego quality people did was connect a Lego wire from
> an output to an input, when they were validating the RCX design.
>
> I'd say try it.
>
> I'm sure the nice customer service people at Lego will give you another
> RCX brick if you pop it. There have been lots of reports of replacement
> pneumatic parts and notors. Haven't heard of a RCX problem. That makes
> me think they must be pretty robust.
>
> By the way, we are working on a RCX multiplexor which gives you six
> motors and nine sensor inputs! So all is not lost!
GREAT! :D
Oh well... I was hoping that someone already "tested" this type of
connection, on purpose or by mistake ;)
I'm not going to be the first to try it on my little old CyberMaster :(
Thxs all :)
____________________
Marco C. aka McViper
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