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APM 2.0.27-rc1 Ch7 & Ch8 Opts Gray

June 3, 2020, 12:54 pm
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@franklin_m wrote:

Apologize if this has been answered elsewhere, but I did all sorts of G**gle searches and come up dry.

I’m running APM version above on Linux machine connecting to a Pixhawk 2.4.8. When I do radio calibration, the system can “see” all 8 channels of the X8R receiver. But when I go to extended parameters, the channel 7 and channel 8 options are grayed out.

There’s got to be something simple. Already had APM check for updates, and it didn’t register anything.

Thanks,

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Cube orange and loop rates

June 3, 2020, 1:12 pm
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@R.S.T wrote:

I’m running a naked cube orange on the bench and setup dshot
as the load is 16% maximum I’d like to ask if higher loop rates would be possible
1k perhaps?

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Copter 4.0.3 on Pixhawk 1 (2.4.8 clone), BLHeli32/Dshot issue. Bad serial, or Aux out?

June 3, 2020, 2:00 pm
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@cdfratzog wrote:

As stated. I’m on version 4.0.3 on a Pixhawk clone (2.4.8). I’m using Holybro Tekko32 F3 ESC’s on a S500 quad. Using BLHeli 32.7.1.3 and Mission Planner 1.3.71. Settings listed below.

Problem is: While I can get the ESC’s to be recognized by BLHeli32 on AUX 2,3 and 4. I cant get any of them to be recognized on Aux 1. Also, the ESC’s are showing up on channel 6, 7 and 8 in BLHeli32. Nothing on 5. And Channel six shows as “Master” and the others show as “slave”. Or, if I plug them in one at a time, they each show up as “Master”. But still noting on AUX1/channel5. I can still program them individually, using AUX 2,3 or 4. But they SHOULD work together, right? The motors will spin when using “motor test” in Mission planner, as well as by remote controller. But they don’t spin very fast. And slow down over time, even at full throttle. But otherwise seem to work fine.

I have all four motor telemetry outs summed into “Serial 4/5”, pin 5. And of course, motor PWMs on AUX 1,2,3 and 4.

Mission planner settings:
Serial5_Protocol set to 16 (ESC Telemetry).
Servo_BLH_Auto set to 1.
Servo_BLH_Mask set to 3840.
Servo9_Function set to 33.
Servo10_Function set to 34.
Servo11_Function set to 35.
Servo12_Function set to 36.
All other servos set to 0, but Servo 5,6,7 and 8 keep showing up as 37,38,39 and 40.

Any ideas what’s wrong here?

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RTL Command kept rising, resulted in crash

June 3, 2020, 2:47 pm
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@creepyokester33 wrote:

I went out to test the autonomous flight capability of my copter today. My goal was to perform a waypoint mission. I performed a short flight using just poshold to test the gps and was successful. I then set the RTL_ALT parameter to 7500 as i didn’t want it to fly up too high. I performed two successful tests with the RTL flight mode, I basically flew a bit far away and went into RTL flight mode. It returned to home on both attempts at roughly the altitude I set it to. I then proceeded to the mission test. I had a very basic mission with just two waypoints. I took off and went into auto and the drone traversed the mission properly. But I had forgot to add the RETURN_TO_LAUNCH command at the end and had to land it manually. I then added the command and did another attempt. The second attempt went fine until the RETURN_TO_LAUNCH command. When it was time to return to home the copter kept rising and rising. At first i thought the return to home command had a different altitude parameter from the flight mode and thought that it was going to stop at 15 m. It went way up high (blackbox log says 50m) and I turned it back into poshold to land. I was hasty as i had low visibility and decended a bit fast. About 5-10 meters from the ground the copter started wobbling mildly (from the propwash perhaps?). It then had a piece fly off from it (after a review of the flight footage i realised it was the top left propeller’s wing) and then crashed. I don’t know why it decided to rise up so high or why the propeller wing snapped off (the props were brand new, maybe the chassis flexed enough for the proppeler to hit the chassis? My chassis is 3d printed PLA but it was rigid enough to not flex or break from a small wobble, it survived much worse) Anyways thanks for your attention, I would be extremely grateful if you could answer why the copter flew so high or why the propeller suddenly broke off.
Here are all the flight log files and flight footage. The crash happens at 1.18 on the video titled Mission crash: https://drive.google.com/drive/folders/12rHBE3fgy8AFaL3T8zZAjTTrvj0iHQ-S?usp=sharing

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Excess return of GCS FailSafe, even if my antenna is 2m from the GCS!

June 3, 2020, 3:45 pm
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@framosnt wrote:

Hello friends, I have a situation that I didn’t have before, I am receiving eventual failsafe due to loss of GCS Beatheart and followed by “GCS cleared” in less than 2 seconds, I can only fly with FS_OPTION = 2 to avoid premature return.

I remember that the rule for Copter is 5 seconds time out, right? why does my drone activate GCS FAIL SAFE?

Thank you who can enlighten me, I will publish a log to demonstrate the problem.

I am using HOLYBRO 500MW TELEMETRY 915MHZ RADIO, Mission Planner 1.3.70.

Messenger Tab:
GCS Failsafe Cleared
GCS Failsafe

Tlog:
https://drive.google.com/open?id=1gox6xMSxL7u600F98I-KgCv6Svl5BYki

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Arducopter 4.0 / 4.03: Auto Set_Servo_Command Not Working

June 3, 2020, 4:24 pm
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@Todd_Stubblebine wrote:

Hello All,

I have a hexacopter and I’m trying to have a servo open / close during an auto mission.

  • I have it on Channel 7.
  • On my Futaba / Dragonlink set-up, the servo opens and closes on a manual switch with RC_Passthrough.
  • In the parameters, for the auto mission, I set Servo_07 to 0.
  • In the flight plan window, I choose the option of Do_Set Servo, on channel 7, and and it set to 1, as well as 0. When I execute the mission, the servo does not want to move.
  • I have tried Relay as well, with no success.
  • On the main flight page, I have the servo set up and it works manually there too.
  • I have done this on Arduplane, and it works everytime, but not on Arducopter. Any suggestions? I have updated the Pixhawk from 4.0 to 4.03, with no luck on either. I’m running the most current version of Mission Planner.

I’d appreciate any insight. #arducopter #development-team

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Landing gear reversed with upgrade to 4.0

June 3, 2020, 4:26 pm
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@Ragbagger wrote:

I am running Arducopter on a pixhawk hex. I was running an older version and everything was fine. I updated 4.0 and the landing gear is reversed. In the old version I had set lgr_servo_deploy and lgr_servo_retract to get the proper servo positions for retract and extend. In version 4.0 I cannot find these parameters anymore. Where did they go. I am using landing gear on RC7 I have tried setting the reverse flag on RC7 but that doesn’t do anything. Can anyone help with how to get the gear output reversed? Thanks

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Analog temperature sensors TMP36 / LM35Dz

June 3, 2020, 9:49 pm
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@Josh_Agrably wrote:

Hi all, I’m using copter 3.5.7, and was wondering if it is possible to connect an analog temperature sensor to the ADC 3.3V such as the TMP36 analog sensor, or the LM35Dz analog temperature sensor.

Thanks in advanced

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Motor slow spin down on throttle down behavior

June 3, 2020, 10:08 pm
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@ololosha wrote:

Hi!
I found similar topic (Motor still spin after shut off) , but will ask for clarification here as well.
So, the issue is, that after putting throttle all the way down, motors stop spinning only after couple of seconds.
MOT_SPIN_ARM is set to 0 as well as MOT_SPIN_MIN is also set to 0.

Consider situation:
Copter crashed and you need quickly show down the motors.
There are few possibilities:

  1. Disarm - 2+ seconds for proper stick movement and disarm delay.
  2. Motor emergency stop - 1+ second for reaching correct switch and use it.
  3. Just move throttle to 0 - <0.5 second, but it does not work :(.

I have cheap Chinese drone for training and on throttle down it stops spinning of the motors instantly.

Currently I worked around 3) using Taranis features:
On Throttle > 0 -> Motor Interlock ON via aux channel
On Throttle ~0 -> Motor Interlock OFF via aux channel
Having this, motors stop pretty quick, but I feel there is better way to achieve this, rather such hacks.

So, question is - is there a way (by tuning some parameter or so) to enable behavior of instant stopping of the motors?

Thank you!

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Motor output on pixhawk not working

June 4, 2020, 1:11 am
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@J_B1 wrote:

Hi, I got a new Pixhawk and i plugged all wires from the old into the new but one motor does not spin. I swapped one motor with the one wich did not turn and now the other motor is not turning wich means that it needs to be the output of the Pixhawk which makes the problem. So i wanted a refund which i got and i ordered the same model (Happymodel 2.4.8). But on the new Model i have the same problem what can i do? Can it be the firmware and i had flashed it wrong?..

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Strong drift in Altitude Hold

June 4, 2020, 1:21 am
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@natyshemer wrote:

Hey,

When I takeoff the drone seems to be stable in place, after a few seconds it start to drift very strongly backwards. In this case I need to put quite a lot of stick to stop the backward flight.
I have verified that the motors are horizontal and have verified that drone is level horizon.
The pixracer is not in the drone c.g. but I don’t understand why this will cause this phenomena (INs parameters were updated).

I have uploaded the log file:


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Sudden Fall Down and Crash (Attaching LOGS)

June 4, 2020, 4:19 am
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@Raphael_PARK wrote:

00000012.zip (978.4 KB) Hi Guys,

I got sudden free fall and crash during the flight of Octocopter.

The Flight Controller was CUAV V5+ and the firmware was ArduCopter V4.0.3
While the mission flight, there were no error messages at all on my Mission Planner HUD but, without any symptoms, it just stopped all motors and got free fall to the ground.

I am attaching log and Tlog file. Please help me for any advice.

Thanks a lot.

  • Raphael

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Communication error when starting sitl

June 4, 2020, 7:28 am
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@clev0910 wrote:

I have managed to install cygwin, MAVProxy and to get airsim running on Unreal Engine, and have also been able to use MAVProxy to control a drone on Airsim. I wanted to use a different board configuration and change the physics a little bit, so I imported a new ardupilot folder and rebuilt the project. However, when I run the SITL command on cygwin ,it results in [WinError 10061] No connection could be made because the target machine actively refused it sleeping, as shown below. I also tried changing the udpip to 0.0.0.0, but it still displayed the same error. Could someone please help me with this issue?

WhatsApp Image 2020-06-05 at 00.22.45
WhatsApp Image 2020-06-05 at 00.22.451156×868 119 KB

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Number of Available Range Finders

June 4, 2020, 8:56 am
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@vanderbt wrote:

Hello,
I just have a newbie question. Is there a limit to just four range finder sensors? I’d like to set up sensors in all six directions.
Best regards,
Tom

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Telem 2 slow when Telem 1 in use

June 4, 2020, 9:21 am
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@Xelax wrote:

We are running the cube orange with V4.0.3. We have a datalink running through Telem 1 to Mission Planner, and an OSD connected to Telem 2 (only Tx pin and ground connected). With the datalink off (manual flying) the OSD updates fine, when we switch the datalink on and monitor the aircraft through Mission Planner (only monitoring aircraft status, position etc, still manual flying) the data output from Telem 2 gets very slow indeed and most OSD parameters update very slowly or not at all. All the systems are working so at least most of the settings should be right, and both ports are set to manufacturer of data link and OSD recommendations (same company).
Anyone have any thoughts?

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Adding external compass

June 4, 2020, 10:20 am
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@Josh_Agrably wrote:

Hi all, I’m in the need of using an external compass rather the the gps+compass module.
Can anyone suggest a standalone compass module that communicates on I2C?
Using arducopter 3.5.7.
Pixhawk 1 board.

Thanks in advanced.

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[Mavros] Body rate control

June 4, 2020, 1:04 pm
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@lmark wrote:

Hello,

I am using ROS + Gazebo + Arducopter SITL to run UAV simulations. Currently I control the uav by publishing AttitudeTarget messages with type_mask set on 7 (which ignores body rate commands).

I would like to control the UAV through a combination of body rates and thrust. However, in the documentation for SET_ATTITUDE_TARGET it says that body rate control is not supported.
I tried publishing AttitudeTarget messages with type_mask on 0 (nothing is ignored) / 128 (attitude is ignored) and body rates are indeed not being controlled.

The only mode which supports body rate control is ACRO mode. However, attitude setpoint messages are only considered in GUIDED or GUIDED_NOGPS mode and completely ignored in ACRO mode.

Any help is greatly appreciated.
Best regards

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APM 2.8 Minimosd Video but no OSD information. HELP

June 4, 2020, 5:09 pm
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@mikeyboy wrote:

Im using an APM 2.8 with minimosd. Im using MissionPlanner 1.3.7277.34800
When i interface with minimosd and open OSD_Config, i can successfully read my setup.
My problem is, when i plug battery into quad, i see video only, with no OSD data.

Gear:
VTX - Woolfwhoop TS5828
Cam - PZ0420m
OSD - MinimOSD Rev. 1.1
FC - APM2.8

Wiring:
Minim TX to APM Telemetry port RX
Minim RX to APM Telemetry port TX
Minim +5V to APM Telemetry port 5v
MINIM GND to APM Telemetry port GND

MINIM VIN to Camera signal
MINIM VOUT to VTX Video
CAM is using 12v directly from PDB
CAM is using GND directly to PDB

I tried enabling OSD in missionplanner however nothing happens
I tried adding SR params to Missionplanner parameters but still same result.
No OSD information displayed. Only video.
Please help.

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Bad LIDAR Health with VL53L1X

June 5, 2020, 4:35 am
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@danielhellin wrote:

By testing with different lidar and sonar I am stuck with the lidar VX53L1X, and constantly get “Bad LIDAR Health”. I have tested two units with the same result.

On the contrary, the tests with the lidar VX53L0X are satisfactory.

These are the parameters modified according to the recommendation:

RNGFND1_TYPE = 16 (same as VL53L0X)
RNGFND1_ADDR = 41 (The sensor’s default I2C address is 0x29 hexademical which is 41 in decimal)
RNGFND1_SCALING = 1
RNGFND1_MIN_CM = 5
RNGFND1_MAX_CM = 360 for the VL53L1X.(120 for the VL53L0X)
RNGFND1_GNDCLEAR = 15

Anyone have experience with this lidar?

Thanks.

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Bad GPS health once in a while

June 5, 2020, 5:39 am
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@Corrado_Steri wrote:

Since some of my aircraft suffer from bad gps health once in a while, would it be safe to run gps at 10Hz?

All of the uav are using F9Z gps, all corrected rtk and use 3 constellations, Gps, Glonass and Galileo.

FW 4.0.3
Serial 115200

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