Subject:
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Re: Nxc and Mindsensors stuff
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Newsgroups:
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lugnet.robotics.nxt
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Date:
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Tue, 27 Nov 2007 11:20:03 GMT
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Viewed:
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29948 times
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John Hansen wrote:
> I do not have the mindsensors DROD-Nx sensor but I have read the documentation
> from their website. It says that the sensor is an analog sensor which you can
> read using the standard NXT-G light sensor block. That means you need to
> configure the sensor port as an active light sensor and then simply read its
> value.
>
> I also compiled a simple NXT-G program containing one DROD sensor block and
> examined the decompiled .rxe file using BricxCC. It shows that the
> mindsensors.com block uses the NormalizedValue sensor reading. So in NXC you
> can simply do this:
>
> task main() {
> SetSensorType(S1, SENSOR_TYPE_LIGHT_ACTIVE);
> SetSensorMode(S1, SENSOR_MODE_PERCENT);
> ResetSensor(S1);
> while (true) {
> NumOut(0, LCD_LINE1, SensorNormalized(S1), true);
> Wait(100);
> }
> }
>
>
> Hope this helps,
> John Hansen
Well, I use Linux so I completely skipped the part about NXT-G in the
docs and I missed the reference to the light sensor. Anyway, that is
sort of what I tried (I changed the original program so many times I am
not sure).
But probably I missed something because I got some results with this:
task main ()
{
SetSensorType(IN_2, SENSOR_TYPE_LIGHT_ACTIVE);
SetSensorMode(S2, SENSOR_MODE_PERCENT);
ResetSensor(S2);
while(!ButtonPressed(BTNCENTER,true))
{ NumOut(20, LCD_LINE3, Sensor(S2), true);
Wait(100);
}
}
Using SensorNormalized() gives values around 350 while Sensor gives what
the doc says ~33, ~77, ~66 . It doesn't seem to be too reliable 'tho,
as it doesn't really detect where the objects are that well and they
have to be really close (<5cm). But at least I got something!
Thanks!
GianPiero
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Message has 1 Reply:
 | | Re: Nxc and Mindsensors stuff
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| (...) Thank you! But it worked only after firmware upgrade (to version 1.05) and using original NXT flat cables (Mindsensors flat cables are very poor quality). -- alf (17 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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Message is in Reply To:
| | Re: Nxc and Mindsensors stuff
|
| (...) I do not have the mindsensors DROD-Nx sensor but I have read the documentation from their website. It says that the sensor is an analog sensor which you can read using the standard NXT-G light sensor block. That means you need to configure the (...) (17 years ago, 27-Nov-07, to lugnet.robotics.nxt)
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