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How to choose potentiometer

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by DonCorleonez, Mar 15, 2016.

Page 2 of 3
  1. RacingMat

    RacingMat Well-Known Member Gold Contributor

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    I don't know for JRK but Arduino built in ADC (analog to digital converter on Analogic pins) is optimized for 10k ohm :)
    RacingMat, Aug 4, 2016
    #21
  2. Raymann

    Raymann New Member

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    Hi
    When i understand that right ,hall pots are plug and play to ardinio?
    I have crashd my normsl pot,and wil by hall pots.
    Normaly can i replace the normal with the hall pot,or is tomthing to do?
    Sry for my bad english :-(
    Raymann, Aug 18, 2016
    #22
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    You can use Hall sensors as a drop in replacement of pots and mounting them is simple as you don't need to gear them.

    I have used these 180 Hall sensors, Element 14 has worldwide distribution: au.element14.com/bi-technologies-tt-electronics/6127v1a180l-5fs/sensor-hall-0-2v-20v-to-10v-pin/dp/2319662
    • Like Like x 1
    • Agree Agree x 1
    noorbeast, Aug 18, 2016
    #23
  4. Raymann

    Raymann New Member

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    Thanks for the information, but one more question I have
    Need hall sensors a magnet on the shaft, or can i built them nearly to the shaft and it works?
    Raymann, Aug 21, 2016
    #24
  5. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    • Agree Agree x 1
    bruce stephen, Aug 21, 2016
    #25
  6. TFOU57

    TFOU57 Member

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    Hello,
    Interesting mechanical angle and electrical angle 360 °.
    Mine are mechanically 360 ° but 340 ° electrical angle, so with a dead zone of 20 °
    Your potentiometers with the mechanical angle and electrical angle 360 ° were they an operating shaft 6mm and 6.35mm?


    Bonjour,
    Intéressant l'angle mécanique et l'angle électriques à 360°.
    Les miens sont des 360° mécaniquement mais des 340° pour l'angle électrique , donc avec une zone morte de 20°
    Vos potentiomètres avec l'angle mécanique et l'angle électriques à 360° ont-ils un axe de manœuvre de 6mm ou de 6,35mm ?
    TFOU57, Aug 21, 2016
    #26
  7. TFOU57

    TFOU57 Member

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    Hello,
    I just found the answer by reading the datasheet for a pin 6mm I need the model 6124

    Bonjour,
    Je viens de trouver la réponse en lisant le datasheet, pour un axe de 6mm il me faut le modèle 6124
    • Like Like x 1
    TFOU57, Aug 21, 2016
    #27
  8. Milton

    Milton Well-Known Member Gold Contributor

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    FYI: I bought that Hall effect potentiometer 3 years ago and today I had one disintegrate on my hands while cleaning! i guess the housing is plastic and with time they come apart easy

    IMG_0708.JPG

    IMG_0709.JPG
    IMG_0711.JPG

    IMG_0710.JPG
    IMG_0713.JPG
    Milton, May 6, 2018
    #28
  9. Nick Moxley

    Nick Moxley Well-Known Member

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    Im still on my Original set in which were LOCKED up twice (due to too Rigid of Pot mount) and required BIG BIG pliers to free up.

    They are FAR from Fragile if you ask me.
    Nick Moxley, May 6, 2018
    #29
  10. baxbax

    baxbax New Member

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    A question, about, these Hall potentiometers:
    how can I put the value in the middle when I will mount the potentiometer on the motor axe?

    Thanks in advance
    baxbax, Oct 8, 2018
    #30
  11. BlazinH

    BlazinH Well-Known Member

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    Apply 5v from Arduino or other source. Use volt meter and twist pot until output reads 2.5v.
    BlazinH, Oct 8, 2018
    #31
  12. baxbax

    baxbax New Member

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    Thank you very much!!!
    baxbax, Oct 8, 2018
    #32
  13. Djalma Ribeiro

    Djalma Ribeiro Member

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    Where do I buy this pot? Any Chinese website?
    Djalma Ribeiro, Mar 26, 2020
    #33
  14. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Mar 26, 2020
    #34
  15. czgui

    czgui Member

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    You can go to (Taobao), the price is about 10 dollars.
    czgui, Apr 6, 2020
    #35
  16. chavilap

    chavilap New Member

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    Hi, I recently bought these hall effect gyro sensors to replace my old Bourns 5 ohm potentiometers.

    https://www.ebay.es/itm/Hall-angle-...rand=Unbranded&_trksid=p2047675.c100012.m1985

    And now that I want to change them, a question arises: I know that I can change the polarity of the bourns, that is, I can invest as appropriate between vcc and gnd so that it goes hand in hand with its motor. But I don't know if I can do the same with these new sensors.
    I hope I have explained myself well.
    chavilap, Jul 1, 2020
    #36
  17. chavilap

    chavilap New Member

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    Sorry, I answer myself: can´t reverse vcc and gnd on hall sensor.
    I just found the answer:blush.
    chavilap, Jul 1, 2020
    #37
  18. Arihant

    Arihant New Member

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    Hi, i buyed 360 deg hall sensors pot but i want connect it directly to the motor shaft without any gear, so this is my question . do i need make some adjustment in the smc3 ino file in the arduino to get the right feedback from the pots????? Or it can be adjusted with the clip limit??? Thanks in advance
    Last edited: Mar 29, 2021
    Arihant, Mar 29, 2021
    #38
  19. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Use a correctly sized flexible connector to directly link the Hall Sensor and motor: https://www.xsimulator.net/community/faq/how-to-connect-protect-a-potentiometer.13/

    You can use the SMC3 utility to make the settings adjustment, you don't need to mess with the ino file.
    • Informative Informative x 1
    noorbeast, Mar 29, 2021
    #39
  20. Zed

    Zed VR Simming w/Reverb Gold Contributor

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    Just to add, there are also Hall sensors that have separate magnets and sensors. While you need to be careful to get the magnet aligned with the sensor axis, that’s pretty easy to do with 3D printing and there is no bearing to gall and bind. Just make a mount for the magnet that fits to the rotating part and a mount for the sensor itself that is fixed in position. Besides the need for proper magnet alignment in the X-Y plane of the sensor, there is also a distance requirement between the magnet and sensor but these are all less demanding than alignment with the shafted Hall sensors. Plus, separate magnet Hall sensors need no lubrication because nothing touches or rubs. I used separate magnet Hall sensors and they have been totally trouble free with the only issue being my output arms hit early versions on my sensor mounts and broke them. That was preventable and entirely my fault. Operationally, no issues at all with the Hall sensors. Highly recommended - shafted or free.
    • Informative Informative x 1
    Zed, Mar 29, 2021
    #40
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