Pixhawk + Taranis / X8R Fail Safe Configuration

Hey, everyone.  

I've got my X8R seemingly working well with the Pixhawk for basic controls and some flight modes on sbus.  I haven't flown it yet.  I'm curious about how to trigger RTL with a switch.  I setup channel 7 on the transmitter, mission planner sees it triggered, but I'm unsure how get the signal to trigger RTL on the Pixhawk.

My current FS Options are set to Enabled always RTL and FS pwm 990.

Thanks in advance.

Cory

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Permalink Reply by Todd on April 5, 2014 at 9:31pm
Is there any documentation / videos on setting up Taranis + x8r + Pixhawk? I'm just about to attempt this. Thank you
Permalink Reply by iskess on April 5, 2014 at 9:41pm
@Todd
Simply output the SBUS from Rx into the RC port on the Pixhawk. Don't use the SB port on the Pixhawk.

@Cory,
Are you using plane or copter? If plane, it doesn't have the ch7 RTL option.
Permalink Reply by Todd on April 5, 2014 at 9:57pm
Thanks for your response @iskess. I'm using a quad.
Permalink Reply by iskess on April 5, 2014 at 10:02pm
Can't you just set the ch7 action to RTL in Mission Planner like with the APM? Sorry I don't have a Pixhawk.
Permalink Reply by Tom Gyllenhammar on April 6, 2014 at 12:43am
A bit OT, but do you know if failsafe is configured and tested from the factory on the RTF y6 with taranis?
Permalink Reply by Walter Smit on April 6, 2014 at 11:09pm

@Todd - Unfortunately there isnt one video only that I can remember. But if you search Youtube for things like: Taranis custom switches and flight modes and APM, you will find a few useful videos.
Physically connecting them could not really be simpler - as iskess explained above. Figuring out which channel the Pixhawk is listening on and setting the custom switches on Taranis to output the correct pwm values is more difficult.

In Mission Planner you will see which channel and pwm values Pixhawk is expecting. On another screen you can set which flight modes (like rtl or loiter) are assigned to which pwm value.
Setting up custom switches and their related "mixes" on the Taranis is actually also easy once you understand the "logic".

Permalink Reply by Todd on April 7, 2014 at 1:56pm
Thanks Walter
Permalink Reply by Todd on April 22, 2014 at 6:48pm
Hey Cory, can I ask where you plugged cable from pixhawk into x8r? Was it sbus? Thanks
Permalink Reply by Para on April 22, 2014 at 10:09pm

On X8R it's the SBUS. The horizontal connector below all the vertical PWM ones. Do not connect it to the S-Port where the antennas exit the case, because that's for telemetry.

Permalink Reply by Chris Podesta on April 23, 2014 at 1:58am

My X8 has been nothing but a pain..    my mate has DJI and its amazing works all day never and issue.. 

CP

Permalink Reply by Todd on April 23, 2014 at 4:21am

Thanks Para

Permalink Reply by david hitchcock on August 21, 2014 at 10:33pm

Im a little confused here, as Im trying to set up the offical "throttle failsafe" with my pixhawk/x8r/taranis.  I am using the x8r with sbus cable only.  when I turn off the tx, the pwm doesnt drop, it stays where it is currently at.  my confusion is; does the throttle failsafe (no pulses at tx) method work while using sbus with pixhawk? If so, then im doing something wrong.....

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