Hi, any pointers in trying to resolve the annoying Unhealthy GPS Signal warning?
My setup consists of the following:
Pixhawk 6C Mini
Ublox F9P GPS
Sats 30 Hdop 0.7
rtk Fixed status.
The F9P is powered from an external source rather than the FC.
Installed into a boat which performs 100% as expected and does not cause any issues other than being annoying.
3 posts - 2 participants
I have fitted a Benewake TF03 rangefinder to my rover and am unable to get it to stop when it reaches an obstacle.
It is wired as a serial device on serial 5
I am getting the correct distance displayed on the sonarrange status.
I have tried running a simple mission and stood in front of it but it does not stop,
Please find my parameter file below.
Any help on this would be welcome.
Cheers,
Martin
05-07-2024 12-45.param (19.2 KB)
2 posts - 1 participant
Dear Sirs. I came across a sonar with the following connection diagram. I connected it according to this diagram. But it doesn’t work. I can’t find the error. I ask for your help.
7 posts - 3 participants
Hey guys, I have completed a Zturn mower project, and have a quick question just as a sanity check. Being 1 servo is named “throttle” and the other “steering” in the outputs section. I just want to make sure when Im doing my PID tuning that the steering and throttle PID’s are actually tuning that function? If that makes sense? as in, do I need to keep the steering the throttle PID values the same to make the servo act “symmetrical”? Thank you in advance. and I do plan on making a thread with my Z turn build to share with others, its been quite the adventure for an amateur like myself.
2 posts - 2 participants
Hi Everyone.
i experiencing so issues with setting up DShot on my cube orange plus , the last time i had Dshot working is on rover 4.4.0 release, today i updated a new cube orange plus to Rover V4.5.5-beta. When I arm the system, the motors start turning slowly without any throttle input also When I provide a small amount of reverse throttle input, the motors unexpectedly go to maximum reverse speed.
iv tried different esc’s setup to 3d mode but get the same results
2 posts - 2 participants
I have had multiple issues with my old Radiolink Pixhawk and decided to swap it with a Pixhawk4 mini that I had available. The job is almost completed. The only issue remaining is my solution to receive NMEA data from my echo sounder. This was working well on my old pixhawk using serial 4 and baud 4800. As the mini has less physical serial ports readily available I decided to use the RCIN.
Firmware 4.2.3 selected as this is what my old Pixhawk also had. And right now I want just to swap the autopilot without need to redo any tuning, firmware upgrade can come later.
In this documentation I read that the RCIN can be used as a regular serial port:
https://ardupilot.org/copter/docs/common-holybro-ph4mini.html
Quote:
The RCIN port can be used as RX or TX as a general UART using the SERIAL4_OPTIONS bits to swap pins
The options to “swap pins” using the options is not very precise. I may not have the correct settings as a result. I have tested using the following settings, so far without any success:
SERIAL4_OPTIONS = 0
SERIAL4_OPTIONS = 8
Cabling:
Further the same link has documentation for the RCIN pinout. I made an assumption that I should use the following pins:
1: 5V
2: TX
3: RX
4:
5: GND
Further settings:
SERIAL4_PROTOCOL = 23 (default value for PX4 mini, did not change it)
SERIAL4_BAUD = 4 (for 4800 as working well with my old Pixhawk)
Can anyone tell me if I am on the right track here? Most important when the boat is now opened, obviously, to get the physical cabling right. Settings can be played around with at any time.
2 posts - 2 participants
Hello
I have used a 2x60A 60HVDC motor controller and want to upgrade it to 2x 160A 60 HVDC motor controller from Roboclaw.
I was wondering where do I connect the wires from the Roboclaw motor controller to the Pixhawk autopilot?
At the picture below you can see where my wires are connected to the Autpilot system, but where to connect them on the motor controller? Do I need something else between?
My setup is 4 x 1000W brushed engines (2 pair on each channel).
1 post - 1 participant
Hello everyone.
I’ve linked my gazebo sim with the Ardupilot SITL, but it seems to have a compass issue.
When I say to my rover to go to a waypoint, it goes around the waypoint as a toilet bowl, and ArduPilot says “error compass variance”. Does somebody has any idea to help me please ?
1 post - 1 participant
Barge type boat with differential steering.
I have gone through the steps to tune for speed and turning.
This is the turn rate desired and actual:
I feel like the boat is pretty good at keeping up with what the controller wants. However DesLatAcc is 25 times higher than what the boat can acheive.
Unable to figure out what I can do to make this less demanding, Turn G Max is at the minimum of .1, and turn radius is at max 10.
Thanks for your time and appreciate any feedback.
Side notes:
Waypoint radius has no affect, it does not cut corners.
Pivot is off.
Just need it to counter steer earlier, before it gets to the line.
The BIN: https://drive.google.com/file/d/1qhHOd2D4T00TJidsxMpC3YYl-OcMY73E/view?usp=drive_link
1 post - 1 participant
hello everyone,
I would like to use a gamepad joystick to command my sitl, but when I try to set up it, there is no option for roll, pitch, yaw and throttle…
Furthermore, I want to simulate a RC with the joystick to be the closest possible from the reality…
Can I have some help please ?
1 post - 1 participant
I apologize in advance for asking questions as a Arduboat newbie. I have spent 2-3 days viewing forums and YouTube videos.
I am part of a volunteer water lake water quality group. I recently built a submarine using Pixhawk and Ardusub for exploring the bottom of our 40 ft lake.
I want to now build an autonomous platform for capturing gps and depth measurements for a detailed bathymetric map of our lake a a few others. Lake is only 3 miles around and 40 ft deep and has little waves.
Here is my wish list:
Extra bonus is someone has associated DiY instructions with your proposed build.
I have a Spektrum 6 ch DSMX transmitter and receiver if this is useful for the build. Also have iPhone and windows laptop.
Thanks in advance.
3 posts - 2 participants
Hello, I try to setup my joystick as it is said in the official Ardupilot tutoria, but I don’t have the “roll”, the “pitch”, the “throttle”… as you can see in the picture below…
Any idea to help me please ? 
2 posts - 2 participants
Hello All,
I would like to use an InertialSense RUG-3-IMX-5-DUAL (IMU Module - Mini Calibrated Inertial Measurement Unit | Inertial Sense) to integrate into an autonomous boat running ardurover (with a blue robotics navigator flight controller)
If I connect this to a serial port on the raspberry pi and output NMEA sentences, will the autopilot recognize the NMEA streams even though its not on the list of GPS’s that work? (GPS/Compass (landing page) — Copter documentation)
In particular I would like GPS to come in obviously, and use the dual compasses for GPS Yaw.
Even better would be if I can get AHRS data coming in too, but that would be an added bonus.
1 post - 1 participant
I’m struggling to tune my Robomower RL500 with a Pixhawk 1 and F9P GPS. I can tune the throttle and steering to closely match the PID desired but can’t seem to get the ‘wiggles’ out in auto. I want to make sure I’m setting the GPS and INS position. Below is a photo that describes my setup. Is this correct?
Thanks
1 post - 1 participant
Hi,
I have a problem that the rover can breach fence and hold when it runs by auto mode with oa_type=3 in Mission Planner with Simulation. Can you tell me the reason why it holds and how I can do.
It’s my parameter, fence, and WP.
Thanks,
Jack
stilconfig.param (22.1 KB)
siltfence-wp.zip (736 Bytes)
1 post - 1 participant
I have been trying to manual tune my rover past 2 weeks but just not able to get it right. My rover is a skid drive. For some reason in acro mode it just doesn’t wanna behave correctly. After changing all the possible values of ATC_STR_RAT_FF (i started from 0.1 upto1.2) its still behaves erratically. By erratic behavior i mean at medium throttle when I send rc command to go left or right sometimes it may go in opposite direction or sometimes at low speed it initially goes in the correct direction but eventually after turning 2-3 times it starts to go opposite to rc input directions and sometimes when I continue to input left or right rc input its starts to oscillate.
Things I have done to get better result:-
Followed tuning process according to rovertuning wikia for ardurover
Made sure that servo output is not reversed( as suggested in this thread Pidachieved opposite to piddesired? - #10 by rmackay9)
Tried quick tune was able to complete it but result PID values were not good.(Although this could be more my fault than quicktune lua scrip as i had to do multiple correction during tuning process so it doesn’t collide with surrounding objects, main reason i have been stuck going the manual tuning route)
Trying to match piddesired and pidachieved curve(to no success, Sometimes I am able it get it close but after continuous drive eventually pidachieved goes completely opposite to pidreceived
Tried to use log data to getter better pid ff, P and I values using PIDS graph but to no success. Usually in those graph my FF values line is spiking too frequently (again to be fare i might not be doing it right i was just trying to get the FF graph values to not spike continuously )
Also in my STER graph **desturnrate" and “turnrate” are similar aside from the usual spike is opposite directions, but my steerout value is to high and spikeing in both direction that i found odd. I tired to find out what steerout value is but not able to determine it if someone could explain me that too.
If any one has faced similar problems with ardurover and can give any inputs that they can give me to getter better tune it would be very helpful.
2 posts - 2 participants
Total noob here taking baby steps toward autonomous rover… thanks in advance for any insight provided.
Use case: skid steering rover / 4 motors, 2 ESC, channels 1&2
Transmitter: Flysky FS-16X Receiver: FS-16X
Pixhawk 6c with M10 GPS and PPM Encoder flashed from MP with rover V4.5.4 firmware. No other config done from MP. Just trying to get basic RC through Pixhawk at this point.
Tested config for RC steering direct to model using PWM to each ESC from receiver, all channels/motors work as expected…
When config is changed to put Pixhawk between receiver and model using PPM from I/0_PWM OUT port to PPM Encoder, only motors on Channel 1 ESC works. Channel 2 ESC is non-responsive to RC input.
I feel like I must be missing something simple, any pointers on what to check?
4 posts - 2 participants
Hello, I’m a beginner in assembling rovers and deciding to build one on my own, my goal is to make an autonomous one based on a here3 but I’m having difficulties. I used a Pixhawk fmuv2 (yes, this is old), a 30a micro esc brushed and a dc motor to test it. Unfortunately I’m not getting significant results, I don’t understand it very well but when assimilating inputs 1~4 the esc doesn’t respond well, I don’t have any rc module and I believe this could be the problem. When assimilating the motor to input 6 and changing it on the servo configuration screen, the motor responds calmly, the problem occurs when assimilating it as a motor, and not as a servo.
Could anyone guide me on how to resolve this?
1 post - 1 participant
Hello,
Here in NZ it’s common practice to send a fishing line past the breakers using a product called a Kontiki. This is basically just a long RC boat with a brushed motor, which is controlled by a timer and gets pulled in by a winch to collect the Kontiki and the catch.
I live in a part of the country where the fishing is pretty abysmal unless you have a boat so my solution is to build my own which is controlled by ardurover. I quickly learnt from testing that a passive rudder alone didn’t give me the turning authority I wanted and I thought it could be useful during loiter to have some sort of bow thrust.
This is what I came up with:
Does anyone have any thoughts on how to configure the rudder with ardurover?
It’d be nice to be able to use both the passive rudder and thruster to get out of trouble. Then use the ‘power rudder’ to translate rather then rotate around a point while holding position to not get it caught on the line.
Any help would be greatly appreaciated.
Tom
P.S. The GPS/compass, serial transceiver, receiver, video transmitter and status LEDs are housed in a translucent PETG print on the top of the mast.
3 posts - 2 participants
Hello everyone,
I have the message “error compass variance” when using the sitl with gazebo.
Any idea ?
1 post - 1 participant
