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Brian

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ESCs
« on: September 26, 2015, 11:25:41 pm »
It's been a while since I built a quad, so I'm not up to date on the new advances, specifically in ESCs.

I'm planning a build of a new quad, probably on a Tarot Mini 250 frame.  I have some motors and ESCs that I think I bought for it.  They are Emax 12A SimonK ESCs, and Emax mt1806-2280kv motors.  I don't know about the quality of the motors, but I think the specs are good for this quad.  The question I have is about the ESCs.

Obviously, the ESCs come with SimonK firmware, which is good, but it looks like they now support BLHelli.  In the past I used to flash BLHelli firmware to stock ESCs and was happy with it, but since these already have SimonK, it might not be necessary.

The one thing I noticed about the BLHelli firmware is something called oneshot.  Does LibraPilot support oneshot?  Is there any other advantage to reflashing them?
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f5soh

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Re: ESCs
« Reply #1 on: September 26, 2015, 11:37:42 pm »
You should use "Oneshot125" with BLHeli and "PWMSyncr" using Simonk.
BLHeli can also do active braking and should allow PID 10/15% higher compared to PWMSyncr.
PWMSyncr/Simonk still a good choice :)
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Brian

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Re: ESCs
« Reply #2 on: September 26, 2015, 11:53:41 pm »
Thanks.  I think I'll go ahead and update to BLHeli.  It looks like they're latest ESCs are running BLHeli, and I hate to start on an old firmware!   :D
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TheOtherCliff

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Re: ESCs
« Reply #3 on: October 10, 2015, 01:35:15 am »
Old thread, but a bit of a warning...

I bought some SimonK ESCs (eBay) and they had an old version of SimonK that just didn't run right.

I upgraded them to the latest SimonK and they straightened out and work fine.
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mazevx

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Re: ESCs
« Reply #4 on: October 10, 2015, 09:45:43 am »
The latest SimonK fw should support oneshot also.
I have the emax blheli 12A esc but i sort them out, the SimonK is the same hardware, the ones i have a very bad soldered, i had to rework the upper side with the fets completely... So be aware pushing them hard can cause desoldering...
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quadfather

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Re: ESCs
« Reply #5 on: October 11, 2015, 01:29:34 am »
Don't confuse SimonK with SimonSeries.  The Emax 12A ESCs run on Silabs chips, which SimonK doesn't support.  Emax used the name SimonSeries to lure in customers, a typical marketing strategy in the far east.
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cato

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Re: ESCs
« Reply #6 on: October 26, 2015, 10:44:12 pm »
New version of the Emax ESC's manual says that these ESCs are BLHeli based. The new version do OneShot125, I am flying my Nighthawk with these ESCs and OneShot.
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Nighthawk 250, MT1806, 12A ESC OneShot125, Revo, M8n GPS, FPV
Cinetank MKII, Elite 2216, 30A Afro OneShot125, Revo Clone, M8N GPS
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Hayabusa1

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Re: ESCs
« Reply #7 on: November 04, 2015, 06:38:51 pm »
I have these Emax 12a Esc on my 250 with mt2204 Motors, i flashed the escs with Blheli 14, i see there is damped light mode availible up too version 11.2! i used xp12a code

can somebodey post the settings in for use with active braking! i am unsure how must setting the Blheli for the mt2204 Motors
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xpantz

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Re: ESCs
« Reply #8 on: November 05, 2015, 11:23:36 am »
Quote from: Hayabusa1 on November 04, 2015, 06:38:51 pm
I have these Emax 12a Esc on my 250 with mt2204 Motors, i flashed the escs with Blheli 14, i see there is damped light mode availible up too version 11.2! i used xp12a code

can somebodey post the settings in for use with active braking! i am unsure how must setting the Blheli for the mt2204 Motors

Standard settings are Demag=Low, PWM Frequency/Damped=Low, Motor Timing=Medium

Start there and then you can change things if you have a problem later.

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