Connect more than 3 motors to an NXT Brick

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Connect more than 3 motors to an NXT Brick

Postby dareangel87 » Wed Jan 11, 2012 7:06 pm

Hi,
I want to be able to connect more than 3 motors (Interactive Servo Motor) to an NXT Brick AND be able to control them individually. I know you have to use a multiplexer for this, but I don't know which one. I have a port-splitter (Port Splitter for NXT Digital Sensors) that I got from the Mindsensors website, however this seems to only work for sensors, and you cannot control each motor individually. Multiplexers for controlling motors on this site do not support Lejos.
Can anyone suggest something that would help me connect multiple motors to one brick, and would allow me to control them individually?
Thank you!
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Re: Connect more than 3 motors to an NXT Brick

Postby s.frings » Wed Jan 11, 2012 8:31 pm

You might use a servo motor controller together with regular R/C cars servos or motors.

See http://www.mindsensors.com/index.php?mo ... PAGE_id=93
or http://stefanfrings.de/servocontroller/index.html
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Re: Connect more than 3 motors to an NXT Brick

Postby gloomyandy » Wed Jan 11, 2012 10:00 pm

What makes you think that leJOS does not have support for the Mindsensors motor multiplexor? Details of the leJOS support are here on the Mindsensors site:
http://www.mindsensors.com/index.php?mo ... AGE_id=134
and the API details are here:
http://lejos.sourceforge.net/nxt/nxj/ap ... Motor.html

Andy
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Re: Connect more than 3 motors to an NXT Brick

Postby s.frings » Fri Jan 13, 2012 1:09 pm

Hello gllomyandy,
dareangel87 has possibly a sensor multiplexer, which is obviously not applicable to motors.
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Re: Connect more than 3 motors to an NXT Brick

Postby skoehler » Fri Jan 13, 2012 3:59 pm

dareangel87 wrote:Multiplexers for controlling motors on this site do not support Lejos.

The manufacturer websites might not be up-to-date. As recommended, you should look into the leJOS documentation to find out, whether a device is supported.
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