Calibration problem
 

I've got calibration problem of MMM with KO Porpo EX-1 UR 2.4G.
Here is my setting.
MMM arming delay time: 2s
Transmitter:
Max throttle position:150
Max break position:150
Calibration procedure stopped in break calibration and LED was blinking red.
There is no such problem with another transmitter.
(Finally, I calibrated MMM with another transmitter and switched it to KO EX-1 radio. It seems fine so far.)
Anyone could help me out?

Make sure to adjust the brakes to full (max). I know Spektrum defaults to 50% brake on some models, so must be turned all the way up for the MMM to see it.

I found on my KO EX-5UR the Mamba Pro and MMM would not calibrate with the throttle set to normal on the radio, only with it set to reverse.



But on the Mamba Monster Max in my Savage Flux, you know what I got the identical scenario! (And this is an ESC which works fine with over 250 runs under it's belt) Thankfully the ESC was already calibrated from my DX3S days but no, on these KO 2.4ghz radios you can't set the end point in brake calibration on the MMM. On the MM Pro it seems ok.

But, like you, it runs fine once calibrated with another radio!

I'd love to see what the Castle boys input on this is, I suspect it's a software thing as the newer Mamba Max Pro seems happy on it.

But in both cases, both ESC's needed to be set to throttle in reverse to even attempt to calibrate.

I suspect that as these KO 2.4ghz are fairly new and not all that common, it could just be an issue Castle isn't aware of. Hopefully they read this post and it's addressed by way of a software update.

Could it be a "UR" mode problem similar to "HRS" mode on futaba? Is there a setting for the response time in the KO? I have been considering a KO radio but would like to know if it will give problems like this.

@fastbaja5b; how do you like the KO compaired to the Spektrum?

I just spent a bunch of time trying to calibrate my new MMM to a Ko Propo EX-5 UR, with a KR-407S receiver. My MMM was on firmware V1.22. I flashed it back to V1.21 and I was able to calibrate it. However, it calibrates fine with my Airtronics radio, regardless of the firmware version. It's definitely something that the MMM does not like about the Ko Propo radio.

Downside on the KO radios is you cant slow it down to a 11mps response (std) it'll only run on the "HRS"style 5.5mps

Which also means you can't use std servos, digital only!

Thanks guys. I do set my KO throttle reversed. I even readjusted the variable resisters on my transmitter; not working. It may be worth a shot to downgrade firmware and then upgrade back.

I'll also give that a go on the Flux

On the Mamba Pro it didn't calibrate with the firmware installed on the unit when it arrived (which I think was released around the same time as the latest MMM firmware) but the latest firmware for the MM Pro did calibrate (and off memory I don't think there was a MMM update at the same time)

Ko radio
 

Just to confirm guys a firmware change fixes the problem. I had the same condition as you guys in my erbe and summit. Switching back to v1.21 fixes the problem. By the way I am runninng a ko ex-1 ur.

Hmm...I think I'm having the same problems, tried all sorts to calibrate my MMM to my KO Propo Helios EX-10 that has a Spektrum module in it. Regardless of EPA values of 90-150 on throttle and brake and normal or reverse on the throttle channel, it's not having it!!

Should I roll back to v1.21, or is there a fix for this now?

I hope CC. could see this and they have the firmware fixed soon.

I think this is related to another issue we saw with a VBar controller on helis. We are already working on a fix.

Patrick

Sure, I emailed some details and the link to this thread to Castle. They're working on a fix. Cheers Castle! :yipi:

Hello folks,

Just to let you know I have the same issue trying to calibrate a Spektrum DX3S with a Mamba Max

V1.21 works fine but any later will not recognise throttle or brake when running the setup

Changing EPA's does not make any difference (when set at 100% on v1.21 it works fine)

Looking forward to a fix as I would like to try the later vers that allows programming through the servo lead rather than the usb port

Cheers

Hmm...does that mean that using the MMM ESC firmware v1.21 will not allow me to use the castlelink to programme it? :oh:

Nope, MMM+castlelink+v1.21 will work fine together, but a higher version of the firmware may not work with certain radios; the castle link & MMM will still work fine together barring any disasters..

Any word on a fix for this yet ?

Just recieved my Field Link and cant use it with my Mamba Max as I'm only running 1.21

Cheers

Any news Castle?

No news? :neutral:

We haven't been able to reproduce the issue with the newest firmware. I'll ping Richard about it again.

Sorry I don't have more information at this time.

You might be able to fix the issue yourself by using this procedure:

Using a radio that will correctly calibrate the MMM:

1. connect a servo to the throttle channel and power the RX with a battery
2. note the servo positions at max throttle, neutral, and max brake

Then, using the KO Propo radio

1. connect a servo to the throttle channel and power the RX with a battery
2. adjust the end points so that the servo positions match the other setup

Thanx!

Patrick,

Mines a plain old Mamba Max and I do not have the luxury of owning a second transmitter

Running a Spektrum 3300t reciever and DX3S I can calibrate it using v1.21 only

Any later version and it fails

Cheers

Just tried to calibrate my newly acquired Mamba Max with my KO EX-10 Helios. Tried all sorts, pulled it back to FW V1.21, reversed throttle channel, increased EPA on both the throttle and brake to 150%, all to no avail.....I turn it on with full throttle held on the TX, MM then flashes green and then we get no further than this :whip::neutral::neutral::neutral:

Any news Castle guys? Sadly I don't have another radio to try :cry:

I dont think there is going ot be a solution if they are/were unable to reproduce the issue. Maybe its time to give up and try a different radio or esc ( which means selling off what you have now ); drastic maybe, but Im sure theres a suitable replacement with the same features and a reasonable price tag... :neutral:

Man, selling my chosen radio gear because of some software bugs in an ESC seems pretty extreme:oh:

If any of the Castle guys read this and would like me to email them video or otherwise to show what is happening then I'm more than happy to help. It's clear there is definitely a problem, based on the posts above from various people. Whatever we can do to help castle (to help us:yes:) then I'm more than willing to assist.:yes:

My problems went away when I change recievers from a Spektrum SR3300t (telemetry) to a stock standard sr300, seems some recievers arent as picky

Cheers

Hmm....I'm using a Spektrum DSM Pro receiver....wonder if that has anything to do with it, although I was using the normal grey spektrum rx with the MMM that wouldn't play ball until the FW was rolled back to V1.21.

Using the MM then it has no switch as it's been removed, would that have an impact on this perhaps?

In the SW I even dropped the arming time to 5 seconds hoping that might help too, no joy...

http://www.hebrewhammer.com/AnimatedHammer.GIF

I wouldnt think the switch/ lack there of one would make a difference, just seems like certain rxs have some bad juju with signal strengths/voltages or something like that ( recent thread with a guy from europe who had a futaba rx that didnt like the MMM- only that particular model of rx was a known issue... ). If you've got friends with different rx by speky, or an lhs near by etc, see if you can work anything out with a different rx...

Hmm...I'll try one of my standard Grey DSM RX's to calibrate the MM.....

Nope, this is driving me insane now! Got the MMM to work fine by using FW V1.21, no worries there as it calibrated fine.

I have tried all sorts with the MM and my KO radio and just not having any of it to calibrate. I have tried increasing/decreasing EPA's, sub trims, trims, TDB on the ESC, all sorts. Plugged in a servo into the RX, worked a charm, throw looks great, no issues. Tried reversing the throttle channel, no luck at all. I have no ABS or anything fancy on the radio setup either.

Occurred to me that during use, I've never seen either the red or yellow LED light up at all, at any point, even during startup? is that normal? Beginning to think my MM has a problem maybe?

Going to have one last try to calibrate it using an old RTR 27mhz radio I have at home...if that doesn't work then might send it back to CC, as then I'll be pretty sure it has issues....the fast i've never seen the red or yellow LED's light up, ever, has me thinking it's more than just a weird radio syncing issue.....