Subject:
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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 11:22:58 GMT
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Viewed:
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3595 times
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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?
Andreas
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Message has 2 Replies:
 | | Re: Sensor inputs of RCX
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| Hi Andreas, (...) this is the pwoer supply for active sensors (light and rotation). It is interrupted briefly every 3ms to sample the value of the sensor. (...) It is done by the microcontroller, every 3ms the OCIA interrupt routine turns off the (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
| | | Re: Sensor inputs of RCX
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| (...) 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?) (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
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