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Tutorial SMC3 Arduino 3DOF Motor Driver and Windows Utilities

Discussion in 'SimTools compatible interfaces' started by RufusDufus, Dec 1, 2013.

Page 137 of 137
  1. Doomak

    Doomak New Member

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    My Motion Simulator:
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    Hi all) I'm using SMC3_v2.1_SoftStart_Sebastian2, 2DOF UNO + BTS7960. SimHUB/ I have a problem when I quickly turn the steering wheel left right left right, one of the engines shuts off while simulating a car roll... and the second one continues to work. Where should I look for the error? in software configuration? in the firmware? or is there a bad contact in the wiring?
    Doomak, Aug 28, 2025 at 23:01
    #2721
  2. Joe Cortexian

    Joe Cortexian Active Member Gold Contributor

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    Is it always the same motor? Does it come back on when you turn the. Or or power supply off and on?
    Joe Cortexian, Aug 29, 2025 at 01:19
    #2722
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    That could be a USB disconnect, a PSU tripping out, poor settings, or some combination. It would help if you start a thread of your own and detail your rig plus all harware, both in description and pictures, and post pictures of all of your settings.
    noorbeast, Aug 29, 2025 at 01:34
    #2723
  4. Doomak

    Doomak New Member

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    if I press stop in SimHUB and press play again, I make it seem like I'm restarting (without disconnecting the USB), then the engine is working fine. And sometimes the engine freezes out of the central position, the green line is not in the center, if I turn the potentiometer, the lever moves, but the center is not in the zero position... it's not related to electronics, it's something in the firmware or settings, I guess..
    Doomak, Aug 29, 2025 at 19:59
    #2724
  5. Joe Cortexian

    Joe Cortexian Active Member Gold Contributor

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    Generally the Arduino resets when you reconnect the serial port. You might verify by pressing the Arduino reset button to see if that clears the issue.

    Can you reproduce using SMCUtils? There is a check in the codes which trips if it gets a single unexpected encoder reading. This will turn the motor off and you can see that in the SMCUtils screen. I had that problem with a generic Arduino. Noise on the sensor input could also cause this.

    Another possibility is that the ibt-2 or PSU has shut off due to momentary overload or glitch. I have this problem occasionally but it clears when I cut 24v power to the drivers. I have my estop turn off the 24v power so it’s a minor inconvenience. It happens based on how hard I push the limits of the drives. In general reproducing with just SMCUtils makes it easier to debug. I had a similar issue that I could reproduce using the “Motion” pattern even when the drive was disconnected from the rig.
    Joe Cortexian, Aug 30, 2025 at 16:56
    #2725
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