Subject:
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Re: Parallel sensor problem
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Tue, 23 Jan 2001 23:50:57 GMT
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Viewed:
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1465 times
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"Ross Crawford" <rcrawford@csi.com> writes:
> Hi, all.
>
> I'm experiencing a strange problem. I'm using two RCXs to control my crane, and
> I have a single touch sensor connected to input 1 on RCX 1 & input 2 on RCX 2.
> However, when I run both programs, which both have a wait_event function like:
I don't know if this is your problem, but the input ports have polarity
(one lead is connected to ground and the other to +5V through a resistor,
if I remember correctly). Have you tried to change polarities?
> Both programs work OK until one switches on a motor! As soon as that happens
> the *other* program does the slow-down! When the motor stops, correct
> functioning returns! But this *only* happens when the sensor is connected to
> both inputs!
Maybe the problem is not in polarity but in a voltage drop on the RCX with
the motor on, draining current for the input port of the other RCX (that
accounts for the fact that one RCX thinks the sensor is pressed).
Hope it helps!
bye
Bernardo
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Message has 1 Reply:
 | | Re: Parallel sensor problem
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| Bernardo Dal Seno <piu1759@cdc8g5.cdc.polimi.it> wrote in message news:87d7dd25ge.fsf@...o.bogus... (...) crane, and (...) RCX 2. (...) like: (...) Thanks. I'll try that. (...) happens (...) connected to (...) Nup. I disconnected the motor, but the (...) (24 years ago, 24-Jan-01, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Parallel sensor problem
|
| Hi, all. I'm experiencing a strange problem. I'm using two RCXs to control my crane, and I have a single touch sensor connected to input 1 on RCX 1 & input 2 on RCX 2. However, when I run both programs, which both have a wait_event function like: (...) (24 years ago, 23-Jan-01, to lugnet.robotics.rcx.legos)
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