Endless Sphere

I just wanna share the new product "hovershoes".

MCU：STM32F103C8T6
OP：LM324
MOSFET：FBM100N80
DRIVER：FAN7842
LINK：https://detail.1688.com/offer/559010270 ... 0.0.B5qtH0
LINK：http://www.nerch.xin/

I implemented open loop foc firmware on the EUC2 controller board(Not be tested) That's great, I'm looking foreward to see your motor run with this firmware. You use DMA for ADC reading, that should be much faster. But I think that doesn't work with a STM8. Wich toolchain do you use with the STM32?...

I implemented open loop foc firmware on the EUC2 controller board(Not be tested).
Finally,i will implement foc firmware on the Lishui and JinHui and etc.
https://github.com/KingQueenWong/BMC_FOC

I'm serious. EUC1 controller could do FOC,you can use Pin PB6 and Pin PB7 to printf somthing information(PB6 and PB7 is used for MPU6050,).The SHUNT is use the MOSFET internal resisitor. Maybe implementing software UART using LED pins... I would like to play and try implement the angle observer tha...

EUC1 controller( https://item.taobao.com/item.htm?spm=a1z09.2.0.0.2ed6e797zYFu2e&id=528731314428&_u=bm58rj4e4ba ) and JinHui controller( https://world.taobao.com/item/544557726531.htm ) both can do foc. Are you kidding?? All this time and we didn't know EUC1 controller could do FOC???? I ha...

casainho wrote:KingQueenWong,

Can you find on taobao the MicroWorks 30B4 board or equivalent??

Any EBike motor controller with STM32F103??

I can not find MicroWorks 30B4 board or equivalent on taobao.

Just found out about this forum after I bought a few FOC controllers on taobao: https://world.taobao.com/item/544557726531.htm Going by the taobao sales volume, this is one of the most popular FOC controllers in chinese ebike market. The bare board item (https://world.taobao.com/item/551416490678.h...

OK, fine that your start up is running now. I don't understand your the start up procedere in the code of motor.c completly yet, it would be great, if you add some comments to explain what happens when. @KingQueenWong: Do you have the equipment for reflow soldering? I'm always in despair if I have ...

casainho wrote:

KingQueenWong wrote:My Cheeta Controller:
https://github.com/451506709/Cheeta

For what application did you developed that controller??

Redesign low cost controller board for position control and speed control in my spare time,just my hobby

My Cheeta Controller:
https://github.com/451506709/Cheeta

casainho - Software Engineer;
stancecoke - Mechanical Engineer;
I am a Electronical Engineer.

My opinion:
In low motor mechanical speed,the interpretation need to slow down;
In high motor mechanical speed,the interpretation need to speed up;

STM32FEBKC6T6:Ebike-Solution-Replace-With-STM32F103C6T6

The seller talk me that my test video is ok,because the controller is FOC controller which is controlled the phase current.High current mean high torque,low throttle mean low current,low current mean low speed.I compare to your EUC firmware,the LSW959-94F firmware can reach larger torque.The seller ...

I connect the TX pin and RX pin to PC via "USB to Serial module",the lishui controller parameters adjustor application feedback "connection to controller is not detected".

LSW959-94F Controller Original Firmware Test
https://www.youtube.com/watch?v=dCBna4io5-E

1. that controller, seems to not have LCD connection, right? ( You are right ) 2. can you please identify which pins on the microcontroller are connected the pins for the programming header? ( You can see the below picture .) 3. searching on google, I can't find anything about LSW659-94-1F and nor e...

I buy a LSW659-94-1F Controller which cost $27(180RMB).Now i received it.
The board's information:
LM324(1 unit)
0.002OHm SHUNT(3 unit)
STM32FEBKC6T6(1 unit)
IRS2003(3 unit)
78M05(1 unit)
AMS1117(1 unit)
STP110N7F6(6 unit)

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

LD-LS13-F and LD-LS11-f is so cool. There are some things I don't like much: - 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 sen...

LD-LS13-F and LD-LS11-f is so cool.

-F suffix mean"FOC"
-C suffix mean"Square wave"

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 pe...

I buy one and try to draw the schematic(Not finished all yet). :D :D :D That's great!! Please put the source files on github after. 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, ...

I share something techniques about using the MOSFET's internal resistance as current sensing.