General discussion

Hey guys, noob here ;)

Just installed a flipsky 75100 on my scooter and there's a slight motor stutter, like a single short 'tah' when it transitions to sensoreless mode.

It is set to go sensoreless at 2000 erpm so it happens really fast at very low speeds but if I increase it to say 6000 erpm then it will do that same stutter only a bit later.
If I change it to 30,000 erpm then it never does it as it stays in sensored mode the whole time.

Hi, I'm trying to connect 4 vesc controllers over the can-bus interface and run them synchronous. I have removed the resistor on the two vescs in the middle, leaving the first and fourth with a resistor. But the issue is that the motors are not running very well, they are stuttering and locking up. 

I have tried and successfully runned two and two, but not 3 and 4 together.

 For me it seems like there is a communication problem when running more than two vesc controllers over can-bus. Has anyone successfully gotten 4 vesc to run synchronous?

Hi

building a trials bike using a vesc 75 300

Need to run a lanyard on it for safety and pass scrutineering at club meets. Would it be best to have it switch out throttle voltage or use the acual vesc power switch?

it has to work instanley,with no motor run on !

Hi

trying to set up a vesc with analog throttle for electric bike. Having a problem with the full throttle only able to go to 3.4 volt were the actual throttle peaks at 5 volt !

is there a way to change the adc1 to full throttle @ 5volt ?

Hi,

A quick question... 

Does anyone know if you can use the SolidGeek VescUart library to both read values from the VESC and also write speed values to the VESC at the same time? or is it a one or the other type of library?

Thanks,

Arran.

Hi i only chare me firmware modification for use on a bike
one sensor for PAS (no quadrature)
Stop motor on break
and BLE

Tested on a old VESC V4.12

PAS connected to ppm
break to ADC1
BLE on uart

in app_pas.c

I believe I am getting a VESC response now with PPM information, though I am having trouble understanding the output format. My short Arduino code is below.

My primary question is, have I gone about this correctly to read the PPM info, is the output as expected, and can anyone advise of the parsing format or where I can dig to find it?

Hi

can someone please supply some leads or links where to purchase a comms plug and leads for analog throttle & brake ?

Hi,

I am wondering if there is any other way to get additional status message such as ABS_OVER_CURRENT faults via the CAN bus in addition to the CAN_STATUS messages.

I can receive the CAN_STATUS_1_2_3_4_5

#CAN_STATUS_1_2_3_4_5
can2  00000904   [8]  00 00 00 00 00 00 00 29
can2  00000E04   [8]  00 00 00 00 00 00 00 00
can2  00000F04   [8]  00 00 00 00 00 00 00 00
can2  00001004   [8]  00 FD FE 84 00 00 25 1E
can2  00001B04   [8]  00 00 00 0C 00 EF 00 00 

Is there any documentation for the serialization of the data?

Hi,

Looking for any tips how to approach debugging the following situation:

VESC is controlling a direct drive winch motor that should lift a load. There is a magnetic 5047 encoder.  Motor detection and encoder initialization complete successfully. Idle operation in both position control and speed control mode looks correct.

With the load attached, in position control (position hold) mode the operation look correct - the current is roughly proportional to the load and is close enough to theoretical value ( Torque / Kt )