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Shoutbox

ched:
04 Jun 2020 17:27:04
Hello Six6siX
Six6siX:
03 Jun 2020 13:28:30
ooo... hello all
badger1:
02 Jun 2020 22:09:18
TBS Source One frame with 7" arms
badger1:
02 Jun 2020 22:09:02
my guess was bang on the number - just out on the units!
LiamHowe89:
02 Jun 2020 21:48:33
Just a bit out from your initial guess then  :laugh: What kind of frame do you fly with?
badger1:
02 Jun 2020 18:52:22
shoutbox doesn't like ampersands for some reason
badger1:
02 Jun 2020 18:51:54
and it was more like a 100m fall  :o
badger1:
02 Jun 2020 18:50:36
lol - checked my logging
badger1:
02 Jun 2020 11:52:29
@Liam - no, absolutely fine.  had another couple of flights with it afterwards -  :laugh:
LiamHowe89:
01 Jun 2020 21:23:22
Ouch! Any breakages?
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3d - Printworx

Printing 3d Forum

Flysky rx on F4 FC using sBus pad.

Started by ched, Tuesday,June 18, 2019, 17:27:54

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ched

Just received a Diatone R349 3" and it doesn't have an option to buy with a receiver.

It does however come with the connector in place for a Frsky R-XSR! So that's nice and easy for Frsky people.
It is connected to the Mamba F405mini stack FC on the pads labelled 0v, 5v and SBUS.



So I would have to use uart6 as uart 3 is used for vtx. So that didn't leave me with any spare uarts and I was thinking of adding a runcam camera control board as I do use that on my Swift Micro v2 on my Martian3.

I was thinking that some FC have a hardware inverter to deal with Frsky's inverted sbus signals and have an un-inverted pad on the same uart. Unfortunately the F405Mini doesn't seem to!
That got me thinking  :hmm: after a bit of digging, BF 3.3.3 and newer appears that if you select serial rx and then Sbus it automatically inverts the signal. If you select iBus it doesn't invert the signal!! In the CLI it's 'serialrx_inverted' if you want the correct inversion you don't need to do anything!!

Sounded too good to be true. So I used the wires connected to 0v, 5v and sbus to connect to my flit10 rx, selected serial rx on uart1 and iBus. Bingo all working perfectly.
No if only the XSR connector was the same size as the Flit10 I wouldn't have any soldering to do.

So bottom line is would appear that you can use the sbus pad on F4 FC and FlySky rx on iBus will work perfectly on BF 3.3.3 or newer!!!

So I now have the spare uart  :D
I try :-)