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Hooking up 2 HB-25s and the 6" wheel kit — Parallax Forums

Hooking up 2 HB-25s and the 6" wheel kit

Steve HobleySteve Hobley Posts: 4
edited 2009-06-05 01:41 in Robotics
Hi,

I just bought a the 6" wheel / encoder kit and 2 HB-25s to control them.

I'm struggling to grasp how all this stuff is hooked up. I want to connect the two controllers and motors in a single pin fashion so I have direction control from 1 line. There don't seem to be enough connectors to hook up the dual motors *and* the rotation encoders all at the same time.

..or maybe I'm just reading the docs wrong.

Is there a resource somewhere that includes all of this? So far I'm bouncing between the two user manuals and scratching my head.

Steve

P.S. Can HB-25s be controlled via RC receivers, or just from a microcontroller?

Comments

  • Steve HobleySteve Hobley Posts: 4
    edited 2009-06-04 12:50
    UPDATE:

    OK I finally worked out what was going on. I should pretty much ignore the HB-25 manual and go with the wheel kit manual. The encoders are more than just light sensors they have a microprocessor onboard and can receive serial instructions from another chip.

    They control the HB-25s completely, so I don't connect to them at all.

    Amazing how I got all this completely backwards in my head.

    lol.gif
  • PrettybirdPrettybird Posts: 269
    edited 2009-06-04 14:59
    I am a newbe too but know electronics. The Parralax servo controler is designed for Parallax basic stanp servo to anolog motor. You can use an R/C controller to Stamp with the software. An H bridge (can be single chip) is used for DC motors. Parallax servo programming is different then indusrtial servo. This forum can help you more. I am just a hardware bird. Software still Scary. lol
  • SeariderSearider Posts: 290
    edited 2009-06-05 01:41
    I am glad to see you got it figured out. It is a bit non-intuitive that the part closest to the motor is what you send commands to and the "Motor controller" is ignored. I have been working with this combo for a few weeks now and it is a very cool combination. One thing that is not quite and easy as I had hoped was to hook it up to and RC system. It seems optimized for AI control and not RC, thus the name Position Controller. Regarless, I am well on my way to having an object that will mimic and RC input. Meaning that you can provide speed and direction input instead of Distance to travel.

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    Searider
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