Arduplane 4.0 on Pixracer

User_4 · January 25, 2020, 11:37pm

I am using an mrobotics pixracer R14: https://store.mrobotics.io/mRo-PixRacer-R14-Official-p/auav-pxrcr-r14-mr.htm

On Arduplane 3.9 in Mission Planner, I can see that the channel monitor is behaving as expected.
On Arduplane 4.0, the channel monitor behaves very unexpectedly. Channels will oscillate between two seemingly random values, and sometimes the channel monitor will not respond at all to radio input.

Is Arduplane 4.0 incompatible with the pixracer R14?

Dave84 · January 26, 2020, 6:17am

Good day, didi you flash the firmware fmv4 or pixracer version? Just consider you have also new firmware arduplane 4.0.2

User_4 · January 27, 2020, 5:28pm

I am not sure what you are referring to by “fmv4”, and “pixracer version”. Do you mean arduplane and px4 firmware?

I believe I was using Arduplane 4.0.1. Do you think this issue has been resolved in 4.0.2/4.0.3?

Dave84 · January 27, 2020, 7:57pm

me i’ve flashed arduplane on my pixracer without issues… i will attach you the links…
https://firmware.ardupilot.org/Plane/stable-4.0.3/fmuv4/
https://firmware.ardupilot.org/Plane/stable-4.0.3/Pixracer/
if you will flash the firmware just flash only the .apj file

In every release there are always a bug fix…

i will also attach you this link so you can check

github.com

ArduPilot/ardupilot/blob/master/ArduPlane/release-notes.txt

Release 4.0.3, 21st January 2020
--------------------------------

This is a minor release with a few bug fixes and enhancements. The
changes since beta1 are:

 - fixed 3 missing semaphore waits
 - fixed checking for bouncebuffer allocation on microSD card IO
 - fixed incorrect param count
 - prevent failsafe action from overriding a VTOL land
 - fixed compass calibration failures with auto-rotation detection
 - fixed errors on STM32H7 I2C (affects CubeOrange and Durandal)
 - fixed a race condition in FrSky passthrough telemetry
 - fixed DSM/Spektrum parsing for 22ms protocols
 - added fixed yaw compass calibration method
 - re-generated magnetic field tables
 - ensure SERIAL0_PROTOCOL is mavlink on boot

The most important fix is for FrSky pass-through telemetry. Pass
through telemetry support had a race condition which could lead to the

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adcam · January 30, 2020, 7:14pm

Hi everybody

I jave a pixracer R15 from mrobotics
Do I need to do something special for arduplane 4.0.x ?

Thanks

Dave84 · January 31, 2020, 9:18am

Good day… i don’t get what do you mean do something special for, 4.0.x

patrick · February 25, 2020, 10:11pm

How did you do the update? About the Mission planner software?

Dave84 · February 26, 2020, 1:02am

with MP you can update your firmware

User_4 · February 26, 2020, 1:32am

For the R14 I could not get 4.0+ to work; I reverted to 3.9.2 and everything functioned as expected.
I am not sure about the R15. If you find that 4.0+ works as expected, please let me know!

Alexey_Degterev · February 26, 2020, 1:57am

i have chinesee copy of R14. Ardupilot 4.0.4 work fine in my wing dart250g
old frsky d8r-ii plus flashed to CPPM output

User_4 · February 26, 2020, 2:10am

Oh can you send me a link to the Chinese clone you are using? I would love to take a look.

Dave84 · February 26, 2020, 4:17am

I will do some test on my mro r15…i will let you know asap

Alexey_Degterev · February 26, 2020, 6:18am

i can’t find on market it now. I bought it 3 years ago.
look like this

Red PCB, pink shell. Marking R14 on pcb

Dave84 · February 26, 2020, 1:10pm

Good da, i think you have bought the pixracer v1.0.
I’ve done a test on a pixracer r14 and im able to install arduplane 4.0.4.
On your fc do you have update the bootloader with chibi os? arduplane 4.04

Alexey_Degterev · February 26, 2020, 3:05pm

my pixracer update BL automatically. I not update it manually.

Dave84 · February 26, 2020, 4:58pm

are you able fly with this version?

Alexey_Degterev · February 27, 2020, 3:33am

yes it fly. baro, compasses, serial ports, everything work.