Some New FOCers (84V VESC 6 based controllers)

bj97301 · August 9, 2020, 4:32am

Not sure what the wand is.

Fosterqc · August 9, 2020, 4:39am

VESC WAND REMOTE soon to arrive from the future

bj97301 · August 9, 2020, 4:57am

Ah yes. Thank you for the link.

Movation · August 9, 2020, 5:59am

Ever since this project started I have been eyeing off my lawnmower battery.

hummieee · August 9, 2020, 6:08am

84v! I’m excited and then wondering how I can find a motor with low enough kv. Everyone is going to have to rewind or re-terminate their motors.

b264 · August 9, 2020, 6:13am

Some folks are just going to go faster

rey8801 · August 9, 2020, 7:10am

For some give drives I was making I asked companies to make custom Kv motors.
Flipsky for instance made me 4 low KV motor. I also have 6384 55Kv motors.
Alien has 130kv motor in stock. HK I think has few low Kv.
In case of ebike or escooters they hare already really low.
Just to give few solutions.

shaman · August 9, 2020, 1:03pm

So if i did it right, this should support the VESC Bluetooth accessories and VESC App.

NuRxG · August 10, 2020, 6:00pm

I got to some independent digging and it looks like that BT module is based on the nrf51822 which wont support NRF controllers? Or at least i haven’t been able to get any of my nrf51822 to work with NRF controllers. I still don’t understand it all.

shaman · August 10, 2020, 6:06pm

I thought it was a matter of the amount of RAM. 16KB vs 32KB

NuRxG · August 10, 2020, 6:20pm

I have a few with 32KB of ram, but when i flash them through the VESC i only see the same firmwares as my 16KB ones and they don’t work with my wand. Maybe I need to flash it a different way? This whole NRF thing confuses me.

edit I see support for the wand in the nrf51 repo, gonna try it lol

NuRxG · August 11, 2020, 3:50am

Many wasted hours later, it turns out the ones sold to me as 32k are actually 16k, the VESC detects them as 16k and when i manually flash the 32k firmware they don’t work. So 16k

shaman · August 11, 2020, 5:15pm

Sorry to hear that man…but at least it means that a real 32KB NRF51822 could and should fully support the VESC bluetooth accessories

NuRxG · August 11, 2020, 5:36pm

Ill believe it when i see it.

It would be cool if there was a remote only 16k firmware, then i could use 2 of them with different firmwares LOL! I looked at the code but I’m in way over my interest level.

Im kinda surprised nobody is selling BLE adapters that support NRF, one could slap that chip (or even a 50Q) on a lil jst-xh breakout board from JLCPCB, flash the firmware, and turn a profit pretty easy. I’m kinda considering doing it myself. Maybe i just haven’t looked around enough, and most wand users are probably happy enough to scoop up a trampa module.

b264 · August 11, 2020, 5:39pm

Max sold a few

linsus · August 11, 2020, 5:42pm

I remember that vedder ran the firmware on both 51 and 52, if I’m not misstaken he had stability issues on the 16kb so he pulled support for it entirely.

I also got some NRF modules from him that are like 5 bucks a pop from china. They work well so far. You had to add add a cap between power and ground tho cause the module died occacionally to power dropout

NuRxG · August 11, 2020, 5:55pm

For the sake of completeness of a future googler, this the offending nrf51822 I’ve seen it listed multiple places as 32K but the ones i got are 16K and probably all that look like this are 16K, and therefore wont pair with an NRF remote. </end_offtopic>

Scepterr · August 11, 2020, 6:21pm

been doing it and still have some available
@NuRxG you want nrf52 for remotes like the FreeSK8 reciever

NuRxG · August 11, 2020, 6:39pm

I explicitly said supports NRF so I’m not sure why you’re linking ones that don’t explicitly say they dont support NRF.

As discussed a few posts up, NRF51 with 32K of memory should work fine. Have you verified that they do not?

Scepterr · August 11, 2020, 7:10pm

it’s a radio quality issue not memory though that could also be an issue