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VESC Original Hardware

VESC 100/250MK issues with output power

Submitted by martin321 on Tue, 2026-01-13 09:52

Hello,

We have a VESC100/250 MK3 firmware 6.6 on 52v battery.

Running a Flipsky 6384 140kv motor in our testbench with eddy current break and torque sensor.

 

While running the motor with a Hargrave microDRIVELP we get max output power of 3600watt and 7.5Nm on 60% duty and 90% breaking power running both FOC and Trapozoidal

With VESC after running calibration we can only get 6.3Nm at 60% duty, this is 80% break and motor stutters and phase current spikes.

Vesc Pronto Hall Sensors not detecting

Submitted by lcappellano on Sun, 2026-01-11 19:27

I bought a vesc pronto a few months back. I just had time now to set it up on my ebike and it seems like the hall 2 input is not working. I tested the motor off the bike with an external 5v power supply and
logic analyzer which showed the 3 hall sensors toggling as I would expect, so I'm fairly certain that the hall sensors are working

VESC 4.12 Running Perfectly in sensorless mode but in Encoder Mode it is unable to run

Submitted by Godfather on Sun, 2025-09-07 14:12

I have set up the hardware using an MT3515-650kV Motor, along with a 360 PPR ABI  Encoder. Everything is properly coupled, and I have verified the index and A-B wave forms on the board; everything appears to be perfect. The waveform on the VESC Tool is showing proper feedback. But the Current is huge without any load and no feedback control seems to be working when I remove the encoder or ty to stop the motor by hands.
 

Doubts on ERPM limit on VESC 4.12 HW

Submitted by raghuvir on Tue, 2025-07-08 13:10

I have VESC 4.12 HW and I am using 150KV motor and I am supplying it with two li-ion batteries in series (12s system, 50.4v with full charge)

My motor is having total 28 magnets in its outer peripheri, then what shoud I enter in VESC tool FOC setup in "Motor Pole" field? Should I enter 28 or should I enter 14?
I mean what is the number expected, the actual no. of magnets or the half of the no. of magnets?

VESC 75/300 repair

Submitted by mah on Tue, 2025-07-01 16:16

Trying to repair my VESC 75/300

I know the STM32 is fried, so a new one is on the way.

All the power are fine, 3.3V 5V and 12V are all present after i removed the shorted stm32 and 2 fet drivers.

But some things i'm still wondering about.

1: What firmware should i flash with?
(and where do i find that file)
The PCB says version 3.1

2: These transistors, does anyone have the exact part?

Vesc Express show up as "Serial ESP32" when connecting to USB.

Submitted by rikard.wildare@... on Tue, 2025-05-13 18:34

Hi!

 

I've been using my Vesc express togheter with a Ennoid HV bms to do logging. Its been running for a couple of weeks but today I lost contact with it over wifi and BLE. Its connected to via CAN and when I connect the USB it shows up as Serial ESP32 \\.\COM15 in the VESC tool. 

Does Trampa BMS work with multiple VESCs?

Submitted by kylerlaird on Sun, 2025-04-20 03:57

I want to use a Trampa BMS in a project with (at least) four VESCs.  I realize it uses CAN, so every VESC should be able to get the BMS status.  Is there some coordination for limiting usage, though?  If two of the VESCs aren't drawing much current, I want the other two to have the full current available.  I don't want to simply limit each one to using one fourth the available current.

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