Subject:
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Re: Sensor inputs of RCX
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Wed, 21 Jul 2004 12:32:55 GMT
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Viewed:
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3511 times
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In lugnet.robotics.rcx, Andreas Jurk wrote:
> Hi,
>
> I'm interested in the electronical function of the three sensor inputs of the
> RCX.
> I took an osilloscope and measured the voltage of the ports. So I got to know
> that a rectangular signal is put on the sensor ports when they are activated by
> software.
> Is this signal created by an extern generator or somehow by the H8
> microcontroler?
Hi Andreas,
Sensor inputs can be configured two ways:
1. Passive - sensor does not need power to operate
2. Active - sensor needs power to operate
Active sensor ports put out aproximately 7V most of the time, and drop the
voltage (every 3ms?) to take sensor readings.
Passive sensors only put out 5V.
The frequencey of the operations is controlled by the H8.
Kevin
>
> Andreas
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Message is in Reply To:
 | | Sensor inputs of RCX
|
| Hi, I'm interested in the electronical function of the three sensor inputs of the RCX. I took an osilloscope and measured the voltage of the ports. So I got to know that a rectangular signal is put on the sensor ports when they are activated by (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
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