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  1. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Been running the firmware for a few weeks now, seems to be working great so far except for 2 times now it just doesn't stop accelerating. Both times were on the same hill with a low-ish battery, brake handles took like 6 seconds to stop the motor and by then I was off the bike.. Going to see if...
  2. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Did you try adjusting the under voltage setting? It may think the battery is too low
  3. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    The cheaper ones ($70ish) go up to 13S (60v spikes) lipo 50amp continuous which should be perfect for the hub motor I've got.. unsure about the higher voltage stuff though... I'm sure there's a vesc for higher voltages but I haven't looked. Thanks for the precontroller link, I may have to take...
  4. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    That sucks.. wish I had known before I spent so many hours messing with it to try to get it to go away :P Think it'd be a pain to get this firmware running on the Voilamart controller, or has it already been done? It doesn't do any stutter and seems like a more high quality product (silicone...
  5. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Got a bit of a weird issue.. So I ended up settling on a 1500W Voilamart kit and then swapped the controller for the KT one from my old kit so I could run this firmware as well as soldering up the 50A bidirectional phase current sensor for sine wave functionality. My issue is that it makes this...
  6. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Out of curiosity how do you like it compared to the stock? Is it worse in any way? Still trying to decide if I want to take the one way trip on my kit when it shows uo
  7. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Awesome, greatly appreciate the work being done on this :)
  8. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    ̶s̶u̶r̶e̶l̶y̶ ̶t̶h̶e̶ ̶P̶I̶ ̶c̶o̶n̶t̶r̶o̶l̶l̶e̶r̶ ̶w̶o̶u̶l̶d̶ ̶b̶e̶ ̶u̶s̶a̶b̶l̶e̶ ̶f̶o̶r̶ ̶a̶ ̶3̶m̶p̶h̶-̶i̶s̶h̶ ̶s̶p̶e̶e̶d̶ ̶l̶i̶m̶i̶t̶ ̶w̶o̶u̶l̶d̶ ̶i̶t̶ ̶n̶o̶t̶?̶ ̶I̶'̶m̶ ̶c̶o̶n̶f̶u̶s̶e̶d̶ ̶o̶n̶ ̶h̶o̶w̶ ̶t̶h̶e̶ ̶o̶f̶f̶i̶c̶i̶a̶l̶ ̶K̶T̶ ̶s̶o̶f̶t̶w̶a̶r̶e̶ ̶w̶o̶u̶l̶d̶ ̶d̶o̶ ̶i̶t̶ ̶i̶f̶...
  9. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Seems like a pretty good idea, but wouldn't it be better to set a constant speed target rather than amp draw so it'd assist more uphills and less downhill?
  10. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Oh cool, might give it a try then.. Might like to keep the walk assist but otherwise sounds like I'll give it a try :) Thanks for confirming it all works
  11. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I don't actually have the kit with me yet, but I remember seeing a forum post at some point that said it didn't work at all on the open firmware for them.. I have no idea on the specifics yet.. Is it working for you on the open source firmware or anyone else that you can find? I just don't want...
  12. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    It works fine on stock but it doesn't work with the open source firmware this thread is about
  13. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I should've specified, I ordered the 48v 12 fet version which appears to be this chip for phase after doing some digging on the website... https://www.ebay.com/itm/ACS758LCB-100B-PFF-T-ALLEGRO-SENSOR-CURRENT-HALL-100A-AC-DC-ROHS-4-PIECES/114012326992...
  14. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Also, related to post above, what part number is the phase current sensor for the 48v kt controller? Can barely see it in the pics.. If someone with a sine wave controller could pop theirs open and get a part number it'd be greatly appreciated :) Edit: Nevermind, found it...
  15. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    So, since posting last time I've gone ahead and ordered an ebike kit with a KT controller. I've been informed it's a square wave controller, but the wiki says it's possible to retrofit phase current sensors onto most boards, but I can't find anything on it so far. Does anyone have anything that...
  16. tenten8401

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Hey guys, I'm about to buy one of these bike kits, it doesn't have a display wire at all so I'm not sure if it'd be compatible with this firmware since I see you need to solder stuff to it to get it to work with the app over bluetooth (I have spare modules laying around).. Is there any way to...
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