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Pixhawk 2.1 and RSSI signal from Dragonlink V2

September 3, 2018, 4:23 pm
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@Leandro_Ludwig wrote:

Hello everyone.

Could anyone confirm if I did the correct installation of the dragonlink?

  1. Wiring (photo 01: https://1drv.ms/u/s!Aq4y6Yu1sPdmjH2ORBH-AwY3rUj9 )

1.1 Connected 12-channel (PPM) on the RC IN pin (Pixhawk 2.1)
(all channels working ok, flights already performed and no problem here)

1.2 I connected the receiver RSSI pin on the SBUS pin (Pixhaw 2.1)
(I just connected signal and ground, I’m not sure it’s possible to send 5.3v from the receiver to SBUS input)

  1. Mission Planner:

RSSI_ANA_PIN = 103
RSSI_CHAN_HIGH = 2000
RSSI_CHAN_LOW = 1000
RSSI_CHANEL = 0
RSSI_PIN_HIGH = 3.3v
RSSI_PIN_LOW = 0.2v
RSSI_TYPE = 1 (AnalogPin)

(I made several attempts to configure by AnalogPin and the PWM channel, but in none of the attempts the signal was 100%).

With this configuration, the RXRSSI appears 85% in the mission planner (in the tower RSSI application does not appear). Is that correct?

Configuration Hexacoptero Tarot 680:

RCTimer 360v Engine
Prop 1355
ESC BlHeli Littlebee 30a
Pixhawk 2.1 cube
Dragonlink V2
RFD900
Lipo 6s GensAce
Turnigy 9x - OpenTX
Firmware MP - 3.57

Topics already reviewed:

http://ardupilot.org/copter/docs/common-rssi-received-signal-strength-indication.html?highlight=rssi

http://ardupilot.org/copter/docs/common-rssi-received-signal-strength-indication.html?highlight=rssi

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Throttle control not working other SITL features work xplane 11, mission planner 1.3.57

September 3, 2018, 4:44 pm
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@Aeroenggguy wrote:

Xplane 11 and MP are connected using SITL and it does control once the aircraft is flying. but does not command the throttle for some reason but i cannot command it manually either. What could be the problem here? A huge thank you to all the cool people keeping this resource running.

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Show me your field development system?

September 3, 2018, 7:16 pm
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@linuxguy123 wrote:

I’d love to see what everyone uses for developing software in the field. Table, chair, laptop, generator, van ???

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Arm/disarm thr rover from RC

September 4, 2018, 12:37 am
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@wujingbang wrote:

Hi,
I’m currently testing the arduRover 3.4.2 with pixhawk2, and I managed to driver my rover using the RC. However I need to arm the rover in MissionPlanner every time because I dont know how to arm the rover in my RC. I can disable the arm process but the flight mode cannot tune to AUTO…
I have searched the availbale parameter list, and found “CH7_OPTION” may do the job, however my RC only has six channels.
I have also found that “RC1_OPTION” exists in the docs, however such option does not exist in the “Full Parameter List” of the Mission Planner when i connect it to the rover through Mavlink…
Any suggestions？ Thanks !!!

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Nimbus1800 首飞，，，，，，，，，，，

September 4, 2018, 2:11 am
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@a5888548 wrote:

:unamused::unamused::unamused::unamused::unamused::unamused::unamused::sob::disappointed::disappointed::disappointed::disappointed::disappointed::sob:http://v.youku.com/v_show/id_XMzgxMDQyMTE2MA==.html?x&sharefrom=android&sharekey=427ed84f53326dcfd697b2e2bcc5be467光环1800三倾转航向锁不住该怎么调？谢谢

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Override RC Input values

September 4, 2018, 3:44 am
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@SHikumo wrote:

Because I’m having issue with mavlink to RC_Override, it seems uart0 on apm2.8 did not work, i got no voltage between GND and Rx0 nor Tx0. So I think Can i use Arduino as Bridge between PWM input and Receiver ? Receiver -> arduino -> input. Arduino will read the value of receiver and put pwm output to APM RC input. If this is possible please let me know. Thanks

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Android 9 support on Tower Beta

September 4, 2018, 6:52 am
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@Paul_Atkin1 wrote:

Hi,

I know that Tower app is de-facto abandoned, but, could anybody confirm if there is any way to make it work on a Pixel 2 phone with Android 9 on it?
So far any attempt to connect to a vehicle via UDP causes an immediate app crash. I can connect using same tower beta app from old Samsung S7 with no issues, as it is running an older Android. Is there anything that can be done to fix/resolve this?

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Tune an overpowerede hexa

September 4, 2018, 9:17 am
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@elgarbe wrote:

Hi, I’m working on a F550 clon with a pixhawk and arducopter 3.5.7.
My motors are MN2213, 950Kv on a 4S LiPo.
The MOT_THST_HOVER was automatically set to 0.17 (and I think it will be lower on the next flights)
I want to make Climb rate much lower than my current value. But Climb sensitivity is 0.5 (the lowest value). Is there a way to make it?

BTW, I will put more weight in the future (on board computer, a cammera and maybe a gimbal), but right now I need to tune with this setup and I don’t have a 3S battery.

Thank

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Crash: Log Review Help

September 4, 2018, 10:57 am
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@Kar2run wrote:

Would greatly appreciate log review Help. First flight after a long journey trying to learn setting up S 500 quad, Pixhawk 2.4.8, apm copter 3.5.7, MP 1.3.58 , 3 S, . Have a lot of bench log errors, bad logging, compass, Gps… This flight not real stable tried to switch flight modes did not get what i expected, drifting away switched to RTL and it went down. I may have lost my cool and may not have let RTL have full command, (reduced power???).
https://drive.google.com/open?id=1v8DG-IaGdFU-0SQBLrAHjJNohot-UGhY
https://drive.google.com/open?id=1YlrQQbfEo6CjBEEQPHDuyQoTpLDZ_nlg
https://drive.google.com/open?id=11dTPXTWWTh1LT8fzVD7srww8HW0TKBZq
Thanks for any help available. Ken

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Rover Sailboat Auto Misison

September 4, 2018, 1:40 pm
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@iampete wrote:

This is a short video demonstrating the progress that has been made on rover sailboat support in the past few weeks.

The boat is a International One Meter class that has been fitted with a pixhawk, standard set up with GPS and telemetry. The only bit of special equipment is a wind vane. This is used to sense the direction of the wind allowing the sails to be trimmed and the best course to be chosen.

40797719_233351140668345_4425020396076531712_n
40797719_233351140668345_4425020396076531712_n.jpg1992x1121 119 KB

The sensor is a 360 degree rotation potentiometer, this allows the wind direction to be read using a analog input. A new wind vane library has been written, we hope to support other devices and methods of sensing the wind direction and speed in the future.

Sailboat now supports:

  • Maunal mode, rudder like standard rover, throttle controls sail position
  • Acro mode, the heading is controlled like a standard rover but the sails are trimmed to the wind automatically.
  • Hold mode, the sails are let out and the boat steers into the wind to try and minimize is speed
  • Auto mode, if the next waypoint can be reached the sailboat takes a direct route like a standard rover, the sails are trimmed automatically. If the next waypoint is upwind and cannot be reached directly the sailboat will tack into the wind to the next waypoint. By default this results in a long leg and a single tack to reach the waypoint so for confined water a tack can be triggered from a transmitter switch or from a full rudder input in the correct direction.
  • RTL mode, the same logic as auto mode is used so the sailboat will tack upwind to reach the home location if necessary

Still a few more things to be done before its ready to merge but its coming along nicely. If anyone has and use-cases or ideas that would be great. The clear advantage is the power efficiency as our propulsion is free. Possibly for mapping a boat with both sails and a motor would be the way to go, we can do the easy bits with the sails and the tricky bits with the motors.

The main thread is here: Sailboat Support
and the code is here: https://github.com/ArduPilot/ardupilot/pull/9322

If anyone has a sailboat and fancy’s doing some testing that would be great!

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Support for Castle Live Link

September 4, 2018, 4:41 pm
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@gotmynina wrote:

Would anyone be interested in adding support for Castle Live Link ESCs? Ithe seems like a great feature for rovers. Castle makes the protocol available, but it is beyond my ability to incorporate into ardupilot. Is the pixhawk (cube in my case) up to it?
Here is a link to protocol details:
http://www.castlecreations.com/castle-link-live

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UAVCAN compass detection problem ChibiOS

September 4, 2018, 5:34 pm
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@rbachtell wrote:

I am using a Zubax GPS on my rover, cube black, 3.4.2 ChibiOS. External compass is only detected if I boot up the system via USB and switch to on board power after boot. If powered initially with on board battery the compass is not enabled and I of course get compass errors. I have tried several different power modules and all act the same. I have a large hex running the same hardware with 3.6rc8 Chibi and works perfectly. I realize that I’m one of very few using a Zubax UAVCAN on a rover but it is extremely accurate and the rover nails waypoints every time so I’d like to sort this issue out if possible. All worked well with nuttx.

Cheers, RB

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ArduPilot Monthly Update for Sep 2018

September 4, 2018, 7:05 pm
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@rmackay9 wrote:

Sep2018-topimage
Sep2018-topimage.jpg1285x363 189 KB

Below is a link to the monthly update presented by Tridge, Randy, Olivier, Jaime, Craig and other members of the dev team at this morning’s Partner ’s call. Thanks to those that could make it and thanks for supporting ArduPilot!

By the way, the images above are from iampete1’s sailboat and AntiiT’s experimental Y4.

If you company is interested in supporting ArduPilot by becoming a Partner please refer to the “How does my company become a partner?” section of our Partners wiki page for details.

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First Flys. RC sounds stranger

September 4, 2018, 9:47 pm
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@GeoCON wrote:

I worked the last weeks in this quadcopter

SIBU project:

  • Frame X, Daya 550.
  • PIXHAWK 2.4.8
  • 4 MOTORS GARTT ML3508S 700KV
  • 4 ESC ZTW 30A SPIDER 2-6 LIPO 600HZ (oneshop configuration)
  • PROPELLER 12.5 (DJI INSPIRE 1)
  • 3DR POWER MODULE 5.3V
  • Battery 4s 10000mh 14.8v.
  • RC TARANIS Q X7 with FlightDeckQ for ArduPilot v 3.3.0
  • Receptor X8R with Telemetry cable (by Craft and Theory)
  • Ardupilot 3.5.7

Please see this video of some firt fly:

I make all the calibration like the suport page. And have some problems in the firt fly:
RC sounds stranger. What those sounds mean?
I am newbie in the stabilized mode. And take off to front as vertical fly.
Is very dificult take control of the throttle, the drone go to left, if try to take control with the pitch and roll the drone go up or down.

Please get me some help.

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PID changes logged in the dataflash files?

September 5, 2018, 12:32 am
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@Skybot wrote:

Hi
I am tuning a -16kg gas engine canard - conducting flights for system excitation characterization.
When I review the data flash logs where can I see the times and values of the updates I made to the PID control loops?
I cant seem to find messages in the logs that show this? I assumed it would be in the ground station commands.
Many thanks in advance.

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Uploading a Mission blocking GLOBAL_POSITION_INT

September 5, 2018, 12:52 am
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@mrdyrden wrote:

Hi,

I am dynamicaly uploading a mission to the copter while in mid flight.

This procedure can take sometimes for a couple of seconds.

I have noticed while in the process of uploading a mission i am not receiving any GLOBAL_POSITION_INT msgs, however i recieve HEARTBEAT msgs - any ideas?

see below (in this example there are no position msgs for about 4 seconds):

|07:15:35.439|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_ACK (Type: 0)|
|---|---|---|---|
|07:15:35.439|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 0)|
|07:15:35.899|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:35.907|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:35.917|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 1)|
|07:15:35.917|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 1)|
|07:15:36.415|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:36.425|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:36.434|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 2)|
|07:15:36.434|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 2)|
|07:15:36.948|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:36.958|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:36.967|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 3)|
|07:15:36.967|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 3)|
|07:15:37.455|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:37.465|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:37.474|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 4)|
|07:15:37.474|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 4)|
|07:15:37.983|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:37.992|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:38.002|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 5)|
|07:15:38.002|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 5)|
|07:15:38.484|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:38.494|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:38.503|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 6)|
|07:15:38.504|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_REQUEST (Seq: 6)|
|07:15:38.972|MavlinkCom  |DEBUG|Sending new message (sendMissionWaypoint). |
|07:15:38.982|MavlinkCom  |DEBUG|[MSG] HEARTBEAT (type: 2, autopilot: 3, base_mode: 217, custom_mode: 4, system_status: 4, mavlink_version: 3)|
|07:15:39.018|MavlinkCom  |DEBUG|[MSG] PARAM_VALUE (param_id: MIS_TOTAL, param_value: 7)|
|07:15:39.019|MavlinkCom  |DEBUG|[MSG] MAVLINK_MSG_ID_MISSION_ACK (Type: 0)|
|07:15:39.019|MavlinkCom  |DEBUG|[TXT] STATUSTEXT: Flight plan received|

Thank you all

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Communication between Pixhawk and arduino

September 5, 2018, 1:44 am
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@connor93 wrote:

I am currently making an autonomous sailing boat and have an Arduino UNO connected to a pixhawk via the telem2 port, i am wondering if it is possible to stream GPS and compass Data from the pixhawk to the Arduino as to avoid the boat trying to sail into the wind.

any help would be much appreciated

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Manual Mode left drift

September 5, 2018, 2:58 am
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@JimiJoplin wrote:

Hi,
I have a rover that gives me some problems in manual mode. when I use the acceleration lever to obtain a straight trajectory, the rover advances with an unwanted left drift. My RC controls the throttle with the left stick and the steering whit the right stick.
I post 2 videos that show this behaviour

VIDEO 1 - ( https://drive.google.com/file/d/1MjDL7EgRK0Q88L2qfn_P38B6HN6xfU9e/view?usp=sharing )
VIDEO 2 - ( https://drive.google.com/file/d/1GSAEU0iuy0bNMyOuWodHwH6GtThqyXoJ/view?usp=sharing )

Anyone knows how can I solve this problem?
Thanks

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Manual and Guided crash

September 5, 2018, 3:10 am
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@JimiJoplin wrote:

Hi,
I post here two videos of my rover in manual and guide mode. After a few meters of flight the rover disconnects the power supply and it is necessary to disconnect and reconnect the battery to restart it. This type of problem also occurs with other flight modes.

MANUAL MODE VIDEO - ( https://drive.google.com/file/d/1MnwmPCixQNKfeJm5LhbNN7wML47NGK2l/view?usp=sharing )

GUIDED MODE VIDEO - ( https://drive.google.com/file/d/1nuCya1FSUWnJTshztLCMSTdwgIZ60Fxz/view?usp=sharing )

what may be the causes?
Thanks

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Plane 3.9.1 reversed elevator behaviour

September 5, 2018, 4:06 am
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@gediminasgu wrote:

Hello,

I had reversed elevator behaviour after deep stall landing recovery. Please find my log here: https://we.tl/t-e1XVBYbZJs
That was first flight with this plane after upgrading it from 3.8.4 to 3.9.1. During that flight, it was a 3rd time when I initiated deep stall landing and tried to recover, but this time I couldn’t recover from it as in place of levelling the elevator, autopilot moved it to a position “nose down” and keep holding it like that until the plane crashed.
I did the same thing many times with 3.8.4 and it always worked good, but not this time. Any ideas what happen?

Thanks!

Regards,
Gediminas

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