I've connected the yellow wire to TX1 and still nothing. only telemetry works. then i remove the sbus out wire and still o ly telemetry works.

TX3 and TX6 shares the same UART. can TX3 still be used?

I have just check my voltage out from SBUS out (RX) to SBUS (FC) is 0.55V. Is this normal?

(14-Apr-2019, 04:48 PM)voodoo614 Wrote: If you have a SD card slot, then you have the correct firmware. So here is the issue with Omnibus F4. At some point the F4 moved the inverted pin for SBUS from UART1 to UART6. So either you have to figure out what version of the FC you have or you can some trial and error. I would leave the firmware, solder SBUS from R-XSR to the SBUS pin on FC. Select serial rx for UART6. If it doesn't work then change to UART1. I would remove the S. Port pin for now.

Do I need to solder bridge the protocol pad?? Saw this from another youtube video.

If you have a bridge, yes you need to solder. And still believe the serial rx is on UART6. And TX3 and TX6 do not share an UART.

i have no idea what a bridge is for. I guess i leave it alone first.

yes i set the serial RX to UART6. UART 1 is my smart port. UART3 is disabled.

Currently the yellow cable is at TX1.

Bridge the middle with SBUS like photo. 

Bridge done. Whats next...

My telemetry is going bogus...sometimes it detect. and then sometime a few went missing. sigh...

(20-Apr-2019, 08:01 AM)mza81 Wrote: Bridge done. Whats next...

Wire SBUS out to SBUS pin. Turn serial rx on for UART6.

done.

how about the yellow cable?

anyway, its all the while been like that.

I have change from TX1 to TX3 and now my telemetry stabilize.

Did the programming

feature -softserial
set serialrx_provider = sbus
set serialrx_inverted = off

and saved.......still no improvement

smartport is at UART 3
serial rx is at UART 6

try changing serial rx to uart1

OMG!!! Like FINALLY! Tears of joy running down my cheeks right now....

It's finally ALIVE!

Thank you so much Voodoo....Must be a pain to guide a noob like me..

I hate Omnibus for having some many version. It so hard to help because it is hard to tell which board you have and which port the SBUS pin isl linked to. Anyway, glad it worked.

Yikes...then which FC will you recommend to buy next?

Anyway, after this, what should I do?? I dont think its ready to fly right??

(20-Apr-2019, 09:18 AM)mza81 Wrote: Yikes...then which FC will you recommend to buy next?

Anyway, after this, what should I do?? I dont think its ready to fly right??

Your FC will fly fine. Omnibus newer stuff are pretty good. Anyway, don't worry about getting another FC, this one will work fine. If you want opinions on a new FC, then you make a new thread.

I just realize my Yaw and throttle is moving together. when i move my left stick, up and down, both yaw and throttle moves. But when i move my left stick, left and right, nothing happens.

Updated - My QX7 Inputs had 2 throttles. Already did the changes and now looks ok. This drone building is sucking my brain juice dry. LOL.