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Cheers Mike, much appreciated

Is this handling MAVLINK over the FrSky SPort protocol, or handling MAVLINK data directly, as in the "Ardupilot" version of er9x? Mike Hi Mike In short, I was referring to direct MAVLINK display on 9XR/ER9X, as passed-through OpenLRSng TX/Rx serial from the APM FC. In OpenTX 2.1.9 this wo...

Hi MikeB Could you please compile ER9X v822 with multiprotocol support and the -MAVLINK feature enabled? I've been trying to do this with a custom build of OpenTX 2.1 (most recent 9XRm128-compatible) but I'm not able to get the basic multiprotocol features working, and it lacks the other ER9X trimmi...

Ok, makes sense. If just a few hertz of slow (but true) serial output at the ground is enough, I still don’t see why an FC can’t just use an unused Rx message ID (IBus/SPort) to encapsulate true consecutive serial bytes and have the 9XR convert it into a serial stream and push it to a pin (and displ...

So what is the prognosis? Not possible with smartport (FrSky) or IBUS (FlySky) and a 4in1? I guess I still have 2 options if they don’t work:
- flash OpenTX and use my OLRS modules (or buy crossfire modules)
- keep er9x, use OLRS modules, beg Mike to compile mavlink in!

Kilrah, I’m referring to this use of smartport for serial mavlink passthrough: https://ardupilot.org/copter/docs/common-frsky-passthrough.html#common-frsky-passthrough I haven’t looked what’s under the hood there, but is that what you’re referring to? I thought it was just serial, because it says th...

Seems something similar can be done using FlySky IBUS receivers? Not sure what’s required on the ground end though: https://github.com/cleanflight/cleanflight/issues/2545 I get that these are not “true” serial if they use specific message IDs in the protocol to interleave the serial data into the do...

Pixhawk does send "passthrough" data using FrSky SPort protocol and er9x does support it, see this thread: https://openrcforums.com/forum/viewtopic.php?f=123&t=12840&p=151108#p151024 . It may be that other APM firmware also sends this, I don't know. Mike Got it from you. The Ardui...

Once we had '128 and '2561 processors I was able to add quite a lot of things. Mike Ok, - APM/PixHawk can send serial data to er9x via the 4in1 using native smartport ✅ - er9x can turn smartport stream back into serial data ✅ - er9x should be able to display Mavlink sent in the serial stream (when ...

:geek: Ok, thanks for the info mike and kilrah. Mike, it would be very cool if you compiled mavlink into your r822 build - because then I could at least use the 4in1 with my FPV quads (no telemetry), as well as being able to swap to my OLRS module for my APM drone, without having to re-flash the old...

Hi er9x telemetry experts! Sorry I’m reviving an old thread here but hoping to get the latest er9x telemetry info... About 8 years ago, I used a 9XR with the bi-directional telemetry mod (running OpenTX FW) and OrangeRxLRS Rx/Tx modules (running gitsly OpenLRSng FW) to stream raw serial MavLink data...

Hi Rienk,
Regarding RC_RSSI, can you add a multiplier config parameter in the new MAVLink menu to scale 3v3 to 5v RSSI when necessary (*5/3.3)?
Cheers
Andrew

Rienk, It works beautifully. Also boots faster, so seems you removed the default command sending as requested. Given that MAVLink Baudrate can be set nicely on the radio, I doubt if Companion9X needs that option. There is no real point in setting it via Companion9X - even FrSky telemetry users don't...

Hi Rienk, thanks for responses. Regarding RC RSSI, I changed aerials and now get a max of 62% - this is inline with your result, and 3v3 max RSSI from my Rx. All good :) Regarding PC RSSI, a few weeks ago I was chatting with the OpenLRSng developer about inserting the PC RSSI value into the MAVLink....

For those interested, See this link for pics of MAVLink mode display (and 9XR mode setup procedure for those interested): http://www.rcgroups.com/forums/showpost.php?p=25873163&postcount=46 See this post in the same thread for *current* setup steps: http://www.rcgroups.com/forums/showpost.php?p=...

Rienk, I can confirm the modes are now correct! Very cool to be able to look at the screen to know what mode is selected, rather than try to remember based on the position of switches :) It still takes a long time to boot the APM when OpenTX uses MAVLink - During bootup the screen gives very useful ...

Also, I have a quick question... Is OpenTX sending any commands/requests/instructions? My arduplane APM seems to startup much slower when I use the MAVLink OpenTX compilation... and in the process my 9XR displays "initialising..." a few times, then "calibrating baro", "calib...

Hi pienk, Just now I tried the latest version of OpenTX (17/August/2013), and compiled using EXT=MAVLINK (I notice it has not yet been separated into MAV_PLANE and MAV_COPTER so I didn't expect things like plane modes and datas to be displayed differently, as confirmed/reported below). I see you add...

I think I would like to see here the custom telemetry screen that we have on FrSky extension. Also I would like that the Tx tells me when the ardupilot is armed / disarmed! I agree, It would be great to be able to customize 1 or 2 MAVLink telemetry screens somewhat. But some "default" scr...

The existing message coverage is quite good, I especially like the descriptive startup status messages during APM bootup. Most important "flight" data from my perspective (plane) include: - Battery V, A, % --> just tested, these are not updating correctly. - speed, distance from home and a...

ioan wrote:How are you getting the MAVLINK messages from the plane/copter to the transmitter?

Via OpenLRS, or similar. See this thread/post:
http://www.rcgroups.com/forums/showpost ... stcount=32