Castle Creations Telemetry Link for Futaba Sbus2

[cml001]

So this is the response I got from Futaba...
http://manuals.hobbico.com/fut/sbs-01rb-manual.pdf
A manual on the Futaba rpm sensor... Lol... I however look it over for the what if... Very bottom right of the last page.. Think that would work with the castle telem link?

[Chris Sexton]

Yeah that's basically what Clint told me too. He couldn't remember the formula though lol So let's try that

[cml001]

Strange to me.. But I'll try it.

[Danny Dugger]

Buuut... we can't set the sensor type to "magnet" if we're using the TL0, right? And the TL0 menu requires a separate pole # and gear ratio...

[cml001]

Damn!

[Danny Dugger]

Seems to me it should be a two minute modification to the firmware code... if that! Change "×" to "÷" and done.

[Danny Dugger]

I finally got word to Nick Maxwell about this. He said it was the first he had heard of the issue and sent a message to the factory inquiring about it. He said he will let me know what they say and if there is a fix in the works. At least I feel like this has gotten somewhere now.

[cml001]

Absolutely! Thanks Danny!

[Chris Sexton]

Spent some time with Clint and Steve Rogers tonight working on this on one of my 766s. It's actually much simpilar than you think Danny. It's off by exactly x100. Set gear ratio and pole count and watch. My desired head speed is 1660. It reads 166000.  1950, reads 195000.

Steve and Clint reported it to Futaba directly after Huntsville. Nick knows now too, thanks Danny.  We just need to wait for Futaba to patch it.

So I just left rpm off my display for now.






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[cml001]

U have the correct pole count and ratio of ur set up and those are the #s? I'll check mine tomorrow.. Didn't think of that way.. Kool.. At least I'll have an idea until they update.. Thanks Chris.. Danny..everyone! Lol

[Danny Dugger]

Chris, I would expect this is a product of your motor rpm and gear ratio. What is your gear ratio, and what does telemetry say your motor RPM is at your target head speed (if you set the gear ratio to 1)? Mine was not a factor of 100. My target head speed is 2350 and telemetry gave me 173723.

[Chris Sexton]

Chris, I would expect this is a product of your motor rpm and gear ratio. What is your gear ratio, and what does telemetry say your motor RPM is at your target head speed (if you set the gear ratio to 1)? Mine was not a factor of 100. My target head speed is 2350 and telemetry gave me 173723.

Traded emails with Nick, and that's right, it's a product of the gear ratio/pole count. In my case it just happens to be pretty close to x100.

The good news is Nick says they have identified the issue and he is testing the new firmware now. Hopefully it will be released soon!

[cml001]

Anyone heard of a firmware update release yet?

[Danny Dugger]

A handful of us have done some beta testing working with Nick and Clint. The math on the Futaba side is fixed, and the official update is in the works. There is still a little bit of error in HS that seems to only show up when using Edge ESCs, but we haven't seen it with Talon. So we're still waiting for something from the Castle engineers on that. There IS a recent firmware update for Castle Link and the Telemetry Link, but it was not to address this particular issue. The ball is in their court, hopefully they're working on it.

[cml001]

Kool.