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SimonK ESC issues.

Posted by Daniel NIkolov on December 30, 2013 at 11:31pm

I have been trying for the last couple of days to get my ESCS that came preflashed with SimonK firware.

http://montorc.com/ztw-spider-series-30a-opto-multicopter-esc.aspx

I am using a ar8000 spektrum receiver module. I can not for the life of me get the 4th beep when trying to calibrate the throttle on the ESCs with this receiver. Maybe someone out there has a bit more experience with SimonK and spektrum receivers. Any help from the community is appreciated...

Regards,

Dan

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Replies

  • Justin October 12, 2015 at 12:02pm
    same issue here!
  • Clancey aggen October 12, 2015 at 11:25am

    I to are having issues with the DIY 40AMP None BEC SimonK flashed ESC's, On the ground and in the air, randomly one of the 6 motors stops spinning and the one that is not spinning is the one that is beeping, to here the beeping watch my video I took bellow PLEASE HELP ME!!!!!!!!!!!!

    https://www.youtube.com/watch?v=DSQtrQTH7JE

  • Todd June 8, 2014 at 1:56am

    Hi Guys

    Also experiencing what I believe is a timing issue with motors randomly stalling mid air - see video:

    heli crash (0 min 53 sec)



    This isn't the first time its happened and its not always the same motor. I've got a good 50 flights in and its happened 4 times, but this is the first time I have clear video of the issue and first major failure - other times the motors have recovered near instant...

    Build:
    Tarot FY690S Hexacopter Frame Set
    DJI Naza-M V2 Multirotor Gyro System w/ GPS
    RCtimer HP4108-720KV (24N22P) Multicopter Brushless Motor
    Rctimer SK-40A SimonK Firmware Multicopter Speed Controller ESC 40A
    RCTIMER 2-Axis Brushless Gimbal Controller & IMU v1.0
    Tarot 1355 Carbon Propellers (Two Holes / CW and CCW)

    any help/ideas appreciated

    • Simon Kirby > Todd June 11, 2014 at 1:39pm

      Hello,

      At what point do you believe there is a stall? It seems to me like you just ran out of power or lowered the throttle too far and scraped the ground...am I missing something?

      • Todd > Simon Kirby June 11, 2014 at 7:11pm

        Hi Simon, Thanks for the reply

        Guess it could look that way in the video, but the problem actually first shows at 10 seconds in the video. I'm slowly descending with a small amount of yaw (no other stick) - then suddenly the front left motor cuts out and the copter violently pitches/rolls forward/left, I recover it just shy of the ground, then just as I apply more power then it cuts out again and goes into an uncontrolled yaw - at which point, I cut my looses and kill the throttle...

        Normally I would think loose joint/faulty wiring, but this isn't the first time this happened and its never the same motor, last time it happened 10cm from landing and the right middle motor cut-out, busting a prop on the concrete...prior to this it's happened twice at 10-15m high and recovered straight away, but I'm now running 13" props so I'm guessing that's hampering the quick recovery.

        PS flying in atti mode

        Thanks

        • Ruben Oliveira > Todd June 15, 2014 at 5:04am

          Hi Todd,

          Having similar behavior on my tricopter.

          In mid flight, one of the motors just stalls... 

          Motors: 480KV Turnigy Multistar 22 Pole
          Props: 1555 Carb
          ESC: Afro ESC 30Amp (SimonK Firmware)
          Controller: Multiwii Pro
          Battery: 4S 5000mA

          video: https://www.youtube.com/watch?v=HPwrfnkcxvg

          • Ruben Oliveira > Ruben Oliveira July 14, 2014 at 2:40pm

            Switched the ESC's for Turnigy Plush.

            Flies great now...

    • Chris Bell > Todd June 11, 2014 at 11:57am

      Ouch!  Sorry you are having problem - especially like this.  Hopefully you didn't get sand into your motors.  

      Unfortunately I don't have any "easy fix" ideas for this type of problem.  I also have a T690 with Naza v2.  Have you carefully checked the soldier of all the electronics?  To make sure there's not a bad connection or barely "hanging on" wire or soldier joint?  With vibration these things can easily happen.  If they wiring is all good what I can tell you is I've been reading that other pilots (with a lot of hours on their craft) are having similar problems using Simon-K ESCs and have switched back to regular ESCs.  I highly recommend Hobbywing Platinum Pro 30A ESCs.  I've been flying with there for quite a while and have not had any problems.

      Let us know if you find the problem Todd.  

      • Todd > Chris Bell June 11, 2014 at 7:17pm

        Thanks for the reply Chris - good info, see below reply to Simon

  • Daniel NIkolov February 24, 2014 at 8:33am

    Hey Simon k,

         Things went really well afterall with the ESCs. I checked all the inputs as well as my multiwii settings and made sure that I was seeing 1000-2000 range and that solved it. Plus whatever person had the remote for the last quad inverted the input so that was not helping me either. I really like the response that your software had and the experience taught me a whole heap about quad rotor architecture. I am working on a quad for a competition which is in 3 weeks. Afterwards I can post the pictures, video and results. So everyone, look forward to my first large blog on this website in a couple weeks. Should be a big one.,

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