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  1. alec

    help sabvoton 72200 meltdown!

    Replace all the FETS, is what I would suggest.
  2. alec

    Sabvoton User's Guide (unofficial) [sabvoton.wire.bike]

    The HC06 will work as a serial bridge for sure. The problem that I’ve faced with writing a third party configuration app is that all of MQ’s software is compiled and spits out quite confusing serial data. The amount of time required to reverse engineer the 64-bit string sent from the app via...
  3. alec

    Sabvoton User's Guide (unofficial) [sabvoton.wire.bike]

    I’m happy to answer any questions. I’ve misplaced the files for this website, I’m desperately looking for my backup so I can get this back online!
  4. alec

    Sabvoton User's Guide (unofficial) [sabvoton.wire.bike]

    Sorry for the very late response! Been busy here as of recent. And no, you'll probably be fine considering you have an M! They're standard with RS232 during that era... if you're lucky. You never know! I think we both know the best way to find out... hook 'er up! :D
  5. alec

    Help in San Francisco (cycle A + castle creation)

    PM’d.
  6. alec

    What could be wrong with my bike?

    PS - The correct replacement sensors for the Cromotor are Honeywell SS441A-S. You can use the SS441A’s but you’ll have longer “legs” off the sensors to deal with. Make sure they’re unipolar and not bipolar. I made this mistake and am having to replace them for the second time right now.
  7. alec

    What could be wrong with my bike?

    I have a Greyborg and Cromotor V3 just like you and am going through an identical issue. I’m fairly certain, up to 95% sure, it’s the hall sensors inside your Cromotor or the wiring leading up to them. There’s certainly an off chance that it’s an internal issue inside your Lyen controller or...
  8. alec

    Do you recognize this hall sensor?

    Thanks for your input, Cal. I am about to buckle up for round 2 of my hall sensor replacement. Fun stuff, isn’t it? What motor do you have? The eBay link is sure to help most people, but for the those with the Cromotor, it may be a bit misleading. According to Zelena, you’ll need unipolar...
  9. alec

    Sabvoton 60150 or 72150 constant current?

    I think it can take it, but of course it’ll kick it down to 30A or below if you hit your DC current limit temp/voltage flags. Honestly, these Sabvoton controllers are pretty cryptic to understand. All I know is that I’ve been able to get 120A continuous on my 96150, and it’s set to 120A.
  10. alec

    Do you recognize this hall sensor?

    I’ve done further feverish research and am starting to think these are Honeywell SS441A-S. That would explain the S. And the other digits are likely manufacturer dates. I’m going to keep looking and update my thread if need be for future reference.
  11. alec

    Do you recognize this hall sensor?

    It sounds silly, but I actidentally sent a ton of voltage into one set while testing a light kit which killed all three. And on the secondaries, I actidentally broke an arm off one while tinkering with wiring and a second was already failed to begin with. :(
  12. alec

    Sabvoton 60150 or 72150 constant current?

    Here's the documentation supplied from Sabvoton! :D Lazy answer: 50-150A.
  13. alec

    Do you recognize this hall sensor?

    I'm in the process of replacing the hall sensors inside my Cromotor V3. Yes, somehow four out of six of my sensors have died. I'm likely the most unlucky Cromotor owner on here. After removing the stator, a few observations: There's a lot of magnetic force when dealing with the stator... Yeah...
  14. alec

    Complete newbie wants to go EV racing - will it end in tears?

    Highly agree with this statement. My wallet sees four therapists after the Greyborg...
  15. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    You’re exactly correct! I hadn’t realized that during my initial testing.
  16. alec

    Sabvoton MQCON review and documents

    Nevermind, I figured it out. I’ll be continuously updating my findings at http://sabvoton.wire.bike
  17. alec

    Sabvoton User's Guide (unofficial) [sabvoton.wire.bike]

    Hi everybody, I've started an unofficial Sabvoton User's Guide at http://sabvoton.wire.bike I'll be constantly updating it with new information. Please feel free to critique, contribute content on or leave any other comments here. :idea: Update log: v.0.9 12/22/17 - Initialization...
  18. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    Cool! I just got a KK 232->485 DB9 converter that should do the trick.
  19. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    Also, do you think the baudrate is still 19200 even though it’s RS485? Any way to test for output baudrate?
  20. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    http://ebike.nexun.pl/wp-content/uploads/2014/08/SSC.pdf According to the spec sheet, it is indeed RS485. Pretty funny how they’d be willing to sell me a USB cable and Bluetooth dongle that are RS232. No wonder why this hasn’t worked for me. I’ve got the proper converter coming in the mail...
  21. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    https://imgur.com/gallery/Kw3MZ Here’s a look at what I’m dealing with. I jumped the ground to the black throttle wire. That seemed to close the circuit up. Still no RX on the PC side. Rx/Tx stick around 3v. Red is 5v. Tried using the HC-05 module and also my USB to TTL. Tried setting...
  22. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    Pin 1, 2, 6 And 7 appears to be 11, 16, 17, 19 on my end. Reference: https://goo.gl/images/e69v4j What are these 1, 2, 6 and 7? Are you talking about internally or on the “big” (B[x]) plug?
  23. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    Yes, that's a typo! I corrected it. Pin 1, Pin 2, etc. are all referring to the "big" harness plug, correct? The one that has hot snot (glue) covering the connections? Using any other ground wire would be rerouting the black gnd to the throttle connector at the harness connector level...
  24. alec

    Help with Sabvoton and USB ($20 PayPal reward!)

    :arrow: $20 of beer money via PayPal or Square Cash to whomever helps me solve this problem that has been plaguing me for the past week. I am also willing to donate it to a charity of your choosing. I finally got my Sabvoton MQCON 960150 playing nice with my CA3-DP and Cromotor V3. It took...
  25. alec

    Help setting up Sabvoton and QS-205

    It can’t communicate to the motor, or you can’t Rx from the serial?
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