KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Thanks!!
I don't see where are the 2 phase current amplifiers... I would say that board don't have them and if so, than S06S controllers are better than that one.
I don't see where are the 2 phase current amplifiers... I would say that board don't have them and if so, than S06S controllers are better than that one.
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- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
The SHUNT use the MOSFET's internal resistance.
Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Never heard of such thing. Is there any application note about this?? I would like to read to understand more.KingQueenWong wrote:The SHUNT use the MOSFET's internal resistance.
I must say I look at that brand/company as the MicroWorks on the EUC market and to Kunteng/BMSBattery as GotWay (like Samsung VS some unknown chinese company that also produces and sells Androids). I think Kunteng controllers may be less capable technically compared to that ones but will be much more stable on the market, unlike what happened with MicroWorks that I invested a lot of time on theirs boards and they just disappeared

About Kelly controllers, they very expensive and there is no information available about the microcontrollers they use, on the controllers version that do FOC. I think they are so expensive that they are not so popular/there isn't much information about them available in the web. They are popular in the sense they are on the market since long time.
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Found another user that shared pictures of that controller and sent a link to another EN shop and seems it is used on the citycoco (scrooser) -- I guess this product will have success and will stay on the market for long time, at least I hope.
viewtopic.php?f=30&t=89380
Controller and parts on EN shop: http://www.chinaglobalmall.com/products/547408992949
viewtopic.php?f=30&t=89380
Controller and parts on EN shop: http://www.chinaglobalmall.com/products/547408992949
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I buy one and try to draw the schematic(Not finished all yet).




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BMC-02A.PDF
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
That's great!! Please put the source files on github after.KingQueenWong wrote:I buy one and try to draw the schematic(Not finished all yet).![]()
![]()
One think that I value as user, is the LCD of Kunteng controllers. That one do not have a specific connection for an LCD, right?? -- but I see TX and RX headers pins, including other 2: PA13 and PA14...
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- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I share something techniques about using the MOSFET's internal resistance as current sensing.
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AN606.pdf
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AND8093-D.pdf
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AND8210.pdf
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Current-Sensing.ppt
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- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
The controller may have a specific connection for an LCD.Actually,the LCD interface can be made to order.You could contact with the controller's seller to extend this featrue freely.The board have the ST's SWD interface,so i can burn my firmware by myself easily.casainho wrote:That's great!! Please put the source files on github after.KingQueenWong wrote:I buy one and try to draw the schematic(Not finished all yet).![]()
![]()
One think that I value as user, is the LCD of Kunteng controllers. That one do not have a specific connection for an LCD, right?? -- but I see TX and RX headers pins, including other 2: PA13 and PA14...
Last edited by KingQueenWong on Jul 10 2017 11:15pm, edited 1 time in total.
- amberwolf 100 GW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
If you found this advice helpful, supporting contributions are accepted here.
"if it ain't broke, improve it till it is"----Dog-Hauler Cargo eTrike SB Cruiser----The HI-Lebowski: a Lebowski SMD brain running a zombified Honda IMA Inverter: a HOW-TO guide----Cargo eBike CrazyBike2----General Blog
"if it ain't broke, improve it till it is"----Dog-Hauler Cargo eTrike SB Cruiser----The HI-Lebowski: a Lebowski SMD brain running a zombified Honda IMA Inverter: a HOW-TO guide----Cargo eBike CrazyBike2----General Blog
- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Temperature VS RDS(ON)/DCR
As the temperature rises, the RDS does not rise too much. This feature can help us to sense current well.If you choose a good mosfet and good heat sink,maybe the temperature impact the RDS very little.Maybe something compensation need to be added,which may casue better performance.

As the temperature rises, the RDS does not rise too much. This feature can help us to sense current well.If you choose a good mosfet and good heat sink,maybe the temperature impact the RDS very little.Maybe something compensation need to be added,which may casue better performance.



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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Just found that Kunteng also sells the bluetooth module and as expected, it connects to the 5 wires LCD connector (UART TX and RX pins): http://www.szktdz.com/en/news_show.php?article_id=485




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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I just received my second controller: https://www.aliexpress.com/item/24V-36V ... 0.0.TRjIRt
Opening it up, it looks exactly like the S06s on your bitbuckets-page, but it does have a few more wires connected, as the link describes.
I already have a S06s controller working on my bike, bought from electricbikeconversions.
I am now confident to dedicate one of the controllers to FW-development, don't want to risk getting stuck with a dead bike
I won't get started just yet though, still having a holiday to get through first
Hope to be of some assistance in the future.
Opening it up, it looks exactly like the S06s on your bitbuckets-page, but it does have a few more wires connected, as the link describes.
I already have a S06s controller working on my bike, bought from electricbikeconversions.
I am now confident to dedicate one of the controllers to FW-development, don't want to risk getting stuck with a dead bike

I won't get started just yet though, still having a holiday to get through first

Hope to be of some assistance in the future.
Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Nice!!nollkolltroll wrote:I just received my second controller: https://www.aliexpress.com/item/24V-36V ... 0.0.TRjIRt
Opening it up, it looks exactly like the S06s on your bitbuckets-page, but it does have a few more wires connected, as the link describes.
I already have a S06s controller working on my bike, bought from electricbikeconversions.
I am now confident to dedicate one of the controllers to FW-development, don't want to risk getting stuck with a dead bike
I won't get started just yet though, still having a holiday to get through first
Hope to be of some assistance in the future.
- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
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- TSDZ2 FAQ: issues and repairs, etc
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I was able to look at the Kunteng 18 mosfets controller (battery voltage 24-72V, maximum operating current 60A, maximum power 4320W) and I took some pictures and notes - see here: https://opensourceebikefirmware.bitbuck ... sfets.html
This controller uses the same microcontroller STM8S105C6T6 as BMSBattery S06S controller. The difference is that this version do not have the phase current sensor (although may be possible that there is a version that has the phase current sensor as we can see there is a place on PCB for it).

This controller uses the same microcontroller STM8S105C6T6 as BMSBattery S06S controller. The difference is that this version do not have the phase current sensor (although may be possible that there is a version that has the phase current sensor as we can see there is a place on PCB for it).

- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
Developer of OpenSource knowledge and technology for ebikes: Wireless EBike standard ANT+ and Bluetooth, TSDZ2 OpenSource firmware, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.
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- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
Developer of OpenSource knowledge and technology for ebikes: Wireless EBike standard ANT+ and Bluetooth, TSDZ2 OpenSource firmware, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Took me many days but finally is done:
- the makefile now builds separated source files that include debug information
- only the changed files are built
Before I couldn't debug code that were outside main.c file and so the main.c file had all the code, making it very hard to manage/code the full project. Also, every time I built the project, took some some because was building 2 times the same files and all the files... wasting of time... now everything is optimized
- the makefile now builds separated source files that include debug information
- only the changed files are built
Before I couldn't debug code that were outside main.c file and so the main.c file had all the code, making it very hard to manage/code the full project. Also, every time I built the project, took some some because was building 2 times the same files and all the files... wasting of time... now everything is optimized

- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
Developer of OpenSource knowledge and technology for ebikes: Wireless EBike standard ANT+ and Bluetooth, TSDZ2 OpenSource firmware, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.
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- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
BMSBattery is now selling S06S controller with bluetooth for 25.5€: https://bmsbattery.com/home/842-36v48v- ... s-app.html


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- TSDZ2 FAQ: issues and repairs, etc
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I am starting to be short on programming memory on the STM8S105C6T6 -- it has only 32kbytes flash memory.
I am being working with the STM32F103C8T6 that officially has 64kbyts flash memory but in reality has 128kbytes of flash memory -- this is well documented over Internet: https://eggelectricunicycle.bitbucket.i ... flash.html
I tried to program STM8S105C6T6 with a file with a size slight higher than 32kbytes but it won't program and so this means only the 32kbytes are available.
I am being working with the STM32F103C8T6 that officially has 64kbyts flash memory but in reality has 128kbytes of flash memory -- this is well documented over Internet: https://eggelectricunicycle.bitbucket.i ... flash.html
I tried to program STM8S105C6T6 with a file with a size slight higher than 32kbytes but it won't program and so this means only the 32kbytes are available.
- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
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- TSDZ2 FAQ: issues and repairs, etc
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I found another EBike controller that BMSBattery sells and that uses STM32F103 and does FOC. But for some reason this controller seems less popular that S Series controllers -- maybe due to higher price??
See all the information here: https://opensourceebikefirmware.bitbuck ... llers.html
Nanjing Lishui Electronics Research Institute Co., Ltd. -- http://www.lsdzs.com
• this controller can be bought from BMSBattery
• has a LCD connector that uses UART TX and RX pins for sending/receiving data
• there is a bluetooth module and app
• this controller does FOC and uses STM32F103C6T8 with 128kbytes flash memory
• Lishui provides an application to update the firmware seems an encrypted firmware file, possible for the proprietary Lishui bootloader


See all the information here: https://opensourceebikefirmware.bitbuck ... llers.html
Nanjing Lishui Electronics Research Institute Co., Ltd. -- http://www.lsdzs.com
• this controller can be bought from BMSBattery
• has a LCD connector that uses UART TX and RX pins for sending/receiving data
• there is a bluetooth module and app
• this controller does FOC and uses STM32F103C6T8 with 128kbytes flash memory
• Lishui provides an application to update the firmware seems an encrypted firmware file, possible for the proprietary Lishui bootloader


- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
Developer of OpenSource knowledge and technology for ebikes: Wireless EBike standard ANT+ and Bluetooth, TSDZ2 OpenSource firmware, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.
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- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
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- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
LD-LS13-F and LD-LS11-f is so cool.
-F suffix mean"FOC"
-C suffix mean"Square wave"
-F suffix mean"FOC"
-C suffix mean"Square wave"
Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
There are some things I don't like much:KingQueenWong wrote:LD-LS13-F and LD-LS11-f is so cool.
- the controllers seems to be available on 250W or 500W only
-- the power resistors to measure phase currents should impose a limitation
- not sure if there is a 48V version as I can't find it on online shops
- no hall sensor support
- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
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- TSDZ2 FAQ: issues and repairs, etc
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- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
casainho wrote:There are some things I don't like much:KingQueenWong wrote:LD-LS13-F and LD-LS11-f is so cool.
- the controllers seems to be available on 250W or 500W only
-- the power resistors to measure phase currents should impose a limitation
- not sure if there is a 48V version as I can't find it on online shops
- no hall sensor support
Only LD-LS06-F,LD-LS33-F,LD-LS34-F support larger than 48V,they are FOC controllers.
Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
So you think that LSW-675 works with 24V, 36V or 48V??KingQueenWong wrote:Only LD-LS06-F,LD-LS33-F,LD-LS34-F support larger than 48V,they are FOC controllers.
Only LSW-675 is kind of cheap, the others are somehow expensive. The LSW-675 + LCD: 63€ VERSUS S06S + LCD: 35€!! I think BMSBattery is just selling LSW-675 because is the only one that works well with the Q75 motor, that seems to be the smaller and lighter motor they have.
- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
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- TSDZ2 OpenSource firmware
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- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
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- stancecoke 100 kW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Great work! I'm plannig to test it!
can you tell me, if the KT36 is the same as the S06S?
The KT36 is easily available in Germany.
Regards
stancecoke
can you tell me, if the KT36 is the same as the S06S?
The KT36 is easily available in Germany.
Regards
stancecoke
Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
Thank you.stancecoke wrote:Great work! I'm plannig to test it!
can you tell me, if the KT36 is the same as the S06S?
The KT36 is easily available in Germany.
I am pretty sure that link links for a controller that is the same as S06S!!
I would like to ask you a favor: please share/promote this project on german forums, like pedalecs or others in your language -- I believe this can be of interest of many. Thank you.
- EBike wireless standard: wireless motor, wireless cycling GPS display Garmin Edge and wireless remote with wireless brake sensor
- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
Developer of OpenSource knowledge and technology for ebikes: Wireless EBike standard ANT+ and Bluetooth, TSDZ2 OpenSource firmware, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.
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- TSDZ2 FAQ: issues and repairs, etc
- TSDZ2 OpenSource firmware
Developer of OpenSource knowledge and technology for ebikes: Wireless EBike standard ANT+ and Bluetooth, TSDZ2 OpenSource firmware, KT motor controllers and displays: Bafang 850C color, SW102 Bluetooth and KT-LCD3.
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- KingQueenWong 100 mW
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Re: OpenSource firmware BMSBattery S/Kunteng KT controllers
I order a LD-BL03-F controller,include a battery case and a controller ,which cost only $42 all .
I contact with this distributor:https://item.taobao.com/item.htm?spm=a1 ... 6491121354
I contact with this distributor:https://item.taobao.com/item.htm?spm=a1 ... 6491121354
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