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Help with RacingMat Code for 2DOF Hbridge

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by zylle, Oct 22, 2016.

  1. zylle

    zylle New Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Hi everyone! :)

    I've been building my 2DOF simulators frame this weekend and mounted my motors and such, as I'm currently waiting for my arduino and hbridge to arrive in the mail. I came across RacingMats code for arduino that can be used with a H bridge and looked into it, as i would like to have everything ready for when my electronics arrive, and couldnt figure out how i should wire my h bridge up to the arduino. As seen in the code here, it looks like that i should wire 2 directions up for each motor?

    upload_2016-10-22_22-53-22.png

    But my hbridge only supports on direction pin for each motor connectec ( as seen in this picture)

    upload_2016-10-22_22-53-42.png

    Sorry if its a bit of a noobish question, but i would hate to come home to my new h-bridge and arduino and be stuck on this for hours :p

    Thanks a lot in advance for the help, my build will have its own thread when i get some pictures of the frame :D
    upload_2016-10-22_22-53-22.png upload_2016-10-22_22-53-42.png
    zylle, Oct 22, 2016
    #1
  2. zylle

    zylle New Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Alternatively, are there any useful arduino codes that i can use with my h-bridge that i bought?

    Thanks a lot in advance! :)
    zylle, Oct 23, 2016
    #2
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    A model number and specification link would be far more helpful than a hbridge picture.
    noorbeast, Oct 23, 2016
    #3
  4. zylle

    zylle New Member

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    • Agree Agree x 1
    zylle, Oct 23, 2016
    #4
  5. evolaco

    evolaco Member

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    Hello, have you managed to run that h-bridge with some arduino code and simtools? Looks very robust and with a good cooler I think it could be 30a and over 60a max
    evolaco, May 20, 2017
    #5
  6. Vladimir

    Vladimir New Member Gold Contributor

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    This H-bridge with firmware must be connected in this way:
    7 pin - DIR1; 4 pin - DIR2; 5 pin - PWM1; 6 pin - PWM2;
    8, 9 pin - not used.
    Vladimir, May 21, 2017
    #6
  7. evolaco

    evolaco Member

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    Smc3?
    evolaco, May 21, 2017
    #7
  8. Vladimir

    Vladimir New Member Gold Contributor

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    For Smc3 connection: 2 pin - DIR1; 4 pin - DIR2; 9 pin - PWM1; 10 pin - PWM2.
    Vladimir, May 21, 2017
    #8
  9. evolaco

    evolaco Member

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    Thank you very much for replying, those connections would be in mode 1 of smc3? No need to change anything
    evolaco, May 21, 2017
    #9
  10. Vladimir

    Vladimir New Member Gold Contributor

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    Yes, all connections for mode1, pin 3 and 5 are not used.
    Vladimir, May 21, 2017
    #10
  11. evolaco

    evolaco Member

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    Thank you very much, my friend, this bridge with a good heatsink could end up much more than the 10A (30A peak) that says in its characteristics?
    evolaco, May 22, 2017
    #11