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HB-25 controller powering/configuration — Parallax Forums

HB-25 controller powering/configuration

jessicajessica Posts: 8
edited 2010-08-28 14:40 in Robotics
Hi everybody,

I'm planning driving the 7.2 V Motor, Bracket and Wheel Kit from parallax with two HB-25 motor controllers using a BS2 Board of education USB.

I will use two 7.2V 2000 mAh R/C packs for powering the two HB-25.


I would like to ask you what would be the best/intelligent solution ? :

1) to daisy chain the two controllers (removing the jumper), use 'mode 2' configuration and one I/O to simultaneously PULSOUT the 2 motors.

2) to use 'mode 1' and two I/O to PULSOUT separately the two motors.


(i'm building a robot with differential steering like the stingray and I need it to move straigh-line)

Comments

  • legoman132legoman132 Posts: 87
    edited 2010-08-28 14:40
    Either will work. If you daisy-chain them and set one of them to mode 2 it will go just as straight as with each on their own channel. If you put them each on one channel, you will save a PAUSE command and make the software slightly less complex, but if you daisy chain them you save an I/O. your choice. To go straight, you could add encoders of some sort or do some software fine-tuning to the PULSOUT values through trial and error.
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