About

Gender

Male


Location

Combrit, Brittany


About Me:

Retired Air Force Transport Pilot. Back to R/C models since retirement.


Please tell us a bit about your UAV interest

Quad and Y6 Copters.


Hometown:

Combrit


Activity Feed

Marc LE BRET replied to Fabian David's discussion DIY 350mm quadcopter
"Naze32 is good "obsolete" control card.

Rule of thumb weight:
1/4 frame and accessories,
1/4 motors and esc and propellers
1/4 battery
1/4 payload (cam, gimbal, video tx,...)"
May 28
Marc LE BRET replied to Bruce Ardern's discussion Octocopter Transmitter Set Up
"You get it,

RC transmitter send commands to the flight controllers (Up, Down, Right, Left,...). Flight controller send commands to the motors.

https://www.rcgroups.com/forums/showthread.php?2429327-Basic-Introd...

Enjoy,

Marc"
May 24, 2019
Marc LE BRET replied to Bruce Ardern's discussion Octocopter Transmitter Set Up
"Octocopter or Quadcopter, the radio settings are the same.

Follow the wiki: http://ardupilot.org/copter/docs/common-rc-transmitter-flight-mode-...

All pertinent information is there.

Pixhack 2.8.4 is not a Pixhawk. It is an adaptation of an old p…"
May 22, 2019
Marc LE BRET replied to Dan Beich's discussion Telemetry Issues - Connecting a Navio2 to Flight Planner using Radio Telemetry
"Not easy.

I have some modules (3DR or equivalent) and Comport is USB Serial Port (FTDI), version 2.12.0.0 26/08/2014, on a W10 setup. Dan Beich said:
I can now confirm it's not a port issue. I tried another computer's ports and I got the exact sam…"
May 14, 2019
Marc LE BRET replied to Dan Beich's discussion Telemetry Issues - Connecting a Navio2 to Flight Planner using Radio Telemetry
"Red blinking is data transmit. 
When the two units are connected (mission planner), the two units have red light blinking. If connection is not established, ground red (near the serial plug) is off.

It could be a bad COM port selection or Serial 1…"
May 14, 2019
Marc LE BRET replied to Dan Beich's discussion Telemetry Issues - Connecting a Navio2 to Flight Planner using Radio Telemetry
"Steady green indicate the two units are paired.

Can you look at https://docs.emlid.com/navio2/common/ardupilot/installation-and-run...

and confirm Telem2 line is uncommented in your arduxx file.

If there is also a micro usb plug on the air unit,…"
May 13, 2019
Marc LE BRET replied to Nick Donnelly's discussion APM 3.5 Instant Flip on Takeoff
"Hello,

Parameter reversed: could be part of QGroundControl radio calibration process. 

Motor problem: It also could be a bad ESC calibration. You can redo ESC Calibration with a receiver and a 4 in 1 plug or repeat the process for each ESC. 

Marc"
Apr 3, 2019
Marc LE BRET replied to Nick Donnelly's discussion APM 3.5 Instant Flip on Takeoff
"There is something. In the Edge RC settings, RC2 (Pitch) is reversed. It should not. You have to reverse the Pitch channel of your RC Tx. You will have to redo the RC Calibration after changing your RC Tx settings.

RC1_MIN
985

RC1_TRIM
1501

RC1_M…"
Apr 1, 2019
Marc LE BRET replied to Nick Donnelly's discussion APM 3.5 Instant Flip on Takeoff
"Hello,

Try to share your .bin file (downloaded from Edge). From first look at the .log file parameters, you use default parameters.

Can you share a picture of your quadcopter (from above) and confirm Prop size and take-off weight.

Best place to d…"
Apr 1, 2019
Marc LE BRET replied to Max Wolf's discussion Pixhawk 2.1 Return to Nearest Waypoint?
Jul 19, 2018
Marc LE BRET replied to Paul's discussion Lots of pins, little documentation
Jul 6, 2018
Marc LE BRET replied to Darius's discussion Coax dodeca-copter on Arducopter 2.x
"ContraRotation on a flat Hexa or Octa is for Yaw control.

Developpers choose to have contrarotatings motors on Y6 then Octo-Quad X config for thrust distribution staying even during Yaw.

As 12 motors control card are not common on the market, your…"
Aug 9, 2017
Marc LE BRET replied to Walter Andreas's discussion Xaircraft x650 Center Software
Apr 5, 2017
Marc LE BRET replied to Dusty Kirschmann's discussion Futaba Sbus
"Hello,
If you google "R7008SB pixhawk" you will find old information with your same problem.

I have a 18SZ (had a 14SG) and I do not use R7008 or 3 sBus2 receivers on my multicopters, but R6202SBW or R6303SB. I have telemetry via 3DR radio.

Proble…"
Mar 13, 2017
Marc LE BRET replied to Dusty Kirschmann's discussion Futaba Sbus
"? What is your Arducopter card ?

No sBus in with APM, only PPM

?? Is sBus Rx mode configured  ??

See Futaba Rx user manual for that,

Marc"
Mar 12, 2017
Marc LE BRET replied to Edmond H. Pepper, P.E.'s discussion Purple Polygons in APM Mission Planner
"The data source available I found was here:
http://tfr.faa.gov/tfr_map_ims/html/ns/scale3/tile_1_2.html
and looking at Oregon, one lousy spot in the middle of the state.


T is for Temporary. For permanent information, you have to look at sectionals…"
Oct 1, 2016
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