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Hall effect potentiometer

Discussion in 'Electronic and hardware generally' started by AceOfSpies, Nov 27, 2013.

Page 5 of 6
  1. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    If you choose Hall sensors it is easy to direct drive/mount them, no gearing needed.
    • Agree Agree x 1
    noorbeast, Aug 25, 2016
    #81
  2. helisfreak

    helisfreak Member

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    So go with the 180degrees? Like this one?
    http://www.digikey.com/product-search/en?keywords=987-1392-ND

    Just to confirm, this work with Adruino and wiring is the same, except these important positive and negative need to be right?
    helisfreak, Aug 25, 2016
    #82
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Yes those would be fine. It is a good idea to use a flexible coupling and those come in a variety of sizes to suit most mounting needs.
    • Agree Agree x 1
    noorbeast, Aug 25, 2016
    #83
  4. helisfreak

    helisfreak Member

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    I have never seen a hall sensor before... They have no friction right, meaning the shaft turn super easily unlike a wire wound pot? Does it have ball bearing to support the shaft?
    helisfreak, Aug 25, 2016
    #84
  5. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    bruce stephen, Aug 25, 2016
    #85
  6. Nick Moxley

    Nick Moxley Well-Known Member

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    The Bitech/TT pots have a bushing not a bearing unfortunately, but that bushing is pretty dang tough i might add.
    • Informative Informative x 1
    Nick Moxley, Aug 25, 2016
    #86
  7. paulg100

    paulg100 Active Member

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    • Informative Informative x 1
    paulg100, Aug 25, 2016
    #87
  8. helisfreak

    helisfreak Member

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    Well... I ordered 2x 6127 from mouser...

    But I found a few of these from some old project... the specs say they are Potentiometer, but man, they absolutely have no friction whatsoever and spin ultra smooth... wonder if I can use it.

    http://www.vishay.com/docs/57042/157.pdf
    helisfreak, Aug 26, 2016
    #88
  9. lcturkey

    lcturkey Member

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    did you buy the hall effect pots ? Do you need to change setup values in Arduino codes ? Do you know it ? I made a diy hall effect pot. it can control the motor but cant control the angle of the rots. Motors continue to turn doesnt stop at the position.
    lcturkey, Aug 31, 2016
    #89
  10. lcturkey

    lcturkey Member

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    lcturkey, Aug 31, 2016
    #90
  11. helisfreak

    helisfreak Member

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    Just got them in yesterday, have not try it yet... I haven't read up on it. But did you make sure the + and ground is correct? I think this is important.
    helisfreak, Aug 31, 2016
    #91
  12. Slider

    Slider Active Member

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    I have the 180 Hall effects, but should have got 360's i think.
    Slider, Sep 1, 2016
    #92
  13. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Sep 1, 2016
    #93
  14. Slider

    Slider Active Member

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    The effective range seems to be less than 180 even if they are, Im worried if a motor runs over one side of the limit it will be outside all range and stop working. Just wouldn't have that issue with 360.
    Slider, Sep 1, 2016
    #94
  15. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Most don't run anything like 90 degrees up and down on a motor, as the torque loss is really significant. Personally I use 40 degrees max up and down, so 80 degrees total. There is huge headroom left over.
    • Agree Agree x 1
    noorbeast, Sep 1, 2016
    #95
  16. speedy

    speedy Well-Known Member

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    speedy, Sep 4, 2016
    #96
  17. SilentChill

    SilentChill Problem Maker

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    SilentChill, Sep 4, 2016
    #97
  18. gigi

    gigi Active Member

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    gigi, Jan 15, 2017
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  19. paulg100

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    same resolution in a smaller range so more precision
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    paulg100, Jan 15, 2017
    #99
  20. Nick Moxley

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    • Agree Agree x 2
    Nick Moxley, Jan 15, 2017
    #100
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