Subject:
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Re: Port types (Re: NXT to NXT communication?)
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 3 May 2006 23:22:42 GMT
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Viewed:
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2900 times
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In lugnet.robotics, Steve Hassenplug wrote:
> On Wed, May 3, 2006 3:25 pm, Rob Hendrix wrote:
> > So you can use a motor port as a sensor input and/or use a motor as an input
> > device (and vice-versa)?
>
> Not exactly. There was talk about that early on. You can not use the sensor
> port to drive a motor, and you can not use the motor port to read an analog (old
> style) sensor.
>
> The hardware specs may have changed, so I may not be 100% on this, but I think
> the hardware will allow you to connect a digital sensor to any of the seven
> ports. However, the NXT software (currently) doesn't allow you to configure the
> motors ports as another type of sensor. (only as a built-in rotation sensor).
>
> So, in addition to the four digital lines in each port, there are two lines that
> represent input and output, as we know it from the RCX. (I think)
Erm, can I clarify here;
The digital sensor port which is part of the motor port is not the same as the
digital port which is part of the main sensor ports.
The two digital wires which are part of the motor port are input only, whereas
the sensor port digital wires can be bidirectional so they can support I2C.
JB
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Message is in Reply To:
 | | Port types (Re: NXT to NXT communication?)
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| (...) Not exactly. There was talk about that early on. You can not use the sensor port to drive a motor, and you can not use the motor port to read an analog (old style) sensor. The hardware specs may have changed, so I may not be 100% on this, but (...) (18 years ago, 3-May-06, to lugnet.robotics)
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