SBus connection on Atmega2560

matster · Post by **matster** » Sun Oct 12, 2014 8:23 am

Hi

Which rs232 port do I connect my SBus port from my X8R FrySky receiver?

I'm running 2.30Navi-B7 firmware and software

Thanks in advance

Arakon · Post by **Arakon** » Sun Oct 12, 2014 9:13 am

Whichever you define in #define RX_SERIAL_PORT x.
Remember that you need a signal inverter.

matster · Post by **matster** » Sun Oct 12, 2014 2:25 pm

Thanks Aakon!

Signal inverter? Do you age an example

not sure what you mean.

matster · Post by **matster** » Sun Oct 12, 2014 3:28 pm

Just brought one of these, hopefully it'll work!
http://www.hobbyking.com/hobbyking/stor ... duct=24523

Arakon · Post by **Arakon** » Sun Oct 12, 2014 4:31 pm

That'll work, yes.

haydent · Post by **haydent** » Sun Oct 12, 2014 10:16 pm

yes that is fine, short end goes to rx

dfruehwald · Post by **dfruehwald** » Mon Oct 13, 2014 2:31 am

I just setup my X4R with one ofd those to the Flip Pro 32u4 based FC, worked great. I did have to use the DEV 1648 branch to get the S.Bus values to stabilize. Watch out for that, I remember reading the FrSky sends packets at 9ms and the baseline 2.3 code had to be adjusted to sync properly.

matster · Post by **matster** » Mon Oct 13, 2014 7:48 am

That's brilliant guys I'll give it a try!

Many thanks

matster · Post by **matster** » Wed Oct 22, 2014 10:06 pm

OK good news is that the inverter and serial port etc worked as well....

however in my WinGUI I still can only allocate AUX commands to 1-4 AUX, I can see that 5-8 are working, but they're not selectable!

what am I missing?

haydent · Post by **haydent** » Wed Oct 22, 2014 11:47 pm

I'm not sure if it is supported

Arakon · Post by **Arakon** » Thu Oct 23, 2014 5:16 am

It isn't, unfortunately. Multiwii stops at 8 channels total.

matster · Post by **matster** » Thu Oct 23, 2014 9:24 pm

priceless, then why show it!

haydent · Post by **haydent** » Thu Oct 23, 2014 11:15 pm

i guess to show that it is being decoded from sbus, and likely with the intention for when it is supported in mw.

MultiWii