@derelicte wrote:
Hello,
I am building a rover based on a remote control John Deere tractor for my kids to drive their dolls around in. It has an articulated body that uses skid steering driving the front wheels to move and steer. I have a pixhawk mounted on it and have configured skid steer out it so that it drives correctly. I'm using rover 3.1.0 beta 1.
My radio is a Futaba 7c radio that doesn't have a centering spring on the throttle (left stick) and it makes it hard to drive as I need to precisely center the stick to stop the rover from moving. What I'd really like to do is move the throttle to the pitch channel (right stick) and just use the right stick to drive the rover. However when I swap channel 2 and 3 with the rc map parameter, the rover no longer drives correctly. If I push the right stick straight up, only the left wheel drives instead of both. When I push it down, it just stops.
Did I configure this correctly or is there something else I need to do?
Thanks!
Posts: 4
Participants: 2
Read full topic
↧
@mr337 wrote:
Hi All,
I'm currently using a Navio2 which has 2 onboard compasses. With the location of the Navio2 I'm still getting EMI during calibrations.
I've been recommended an external IMU with a self calibrating magnetometer, http://www.tinkerforge.com/en/doc/Hardware/Bricks/IMU_V2_Brick.html.
Problem is I don't know how to hook it up to APM. Digging around in the compass code it looks like onboard and externally connected compasses talk via I2C. I don't see anything that talks over serial like a GPS receiver etc where you can provide a tty.
Looking at adding serial for this would be quite a chore. From what I have gathered APM also wants to talk to the raw device and do internal calibrations etc. Using something like the IMU brick is all that is offloaded. I guess you could set offsets of 0.
Any thoughts or opinions or am I talking crazy!
Posts: 3
Participants: 2
Read full topic
↧
↧
@Nguyen_Duc_Hoa wrote:
Hi all, I am quite new for ardurover project. After a week facing this trouble, I really need your help to keep moving on.
3 weeks ago, everything was working fine but after I updated the new firmware for Pixhawk to 3.0.1, the problem appeared. On Pixhawk I connect 3DR UBlox GPS + Compass Module, PPM encoder and output are steering and throttle to the car. I disabled all ARMING parameter therefore the pixhawk is now having solid blue led. After checking the RC input signal to pixhawk, everything seem to be fine (when I accelerate or steer, the PWM signal changes) but the output signal doesn't work for steering, only throttle is working. However the throttle also stop after working for a while (I guess because of fail-safe) but steering doesn't work at all. I stuck at this for more than a week, I hope that somebody could give me some idea to fix it.
Thank you very much.
Posts: 3
Participants: 2
Read full topic
↧
@jborden wrote:
Does anyone know of a site with a compiled version 2.50 or maybe have it archived?
I need to revert back to it from v2.51 beta and am clueless on how to compile it from the zip files.
Thank you, Jonathan
Posts: 1
Participants: 1
Read full topic
↧
@extremerc wrote:
Hello,
Is there a Follow Mode in Tower for the Ardurover? The rover is running everything else fine but I'd like it follow the GPS position of my phone when moving around. Thanks in advance!
Wayne
Posts: 3
Participants: 2
Read full topic
↧
↧
August 23, 2016, 11:59 am
@dksmall wrote:
I have a Trax Slasher, Trax ESC, PixHawk, and the 3DR power module. When I first power up the system by plugging the battery cables together, the PixHawk starts booting. Then I press the start button on the ESC and the PixHawk gets stunned and stops working. I hear a clicking noise from the buzzer and that's it. But if I hold down the ESC button first and then connect the battery cables, then release the button after a second, everything starts up as expected.
I'm assuming when the ESC starts up, there's a current surge which drops the voltage going to the PixHawk and stuns it. Any ideas on how to fix this?
Posts: 7
Participants: 2
Read full topic
↧
August 28, 2016, 12:28 am
@billb wrote:
Ok, my first adventure in to Rover is starting and its going to use a Traxxis Stampede. I just happened to be at the park with the kids and a conversation about my flying toy drone ended uo with me buying a lightly used Stampede and all the bits. Now where the best place for the autopilot, off to read docs I go.
![]()
Posts: 6
Participants: 2
Read full topic
↧
September 2, 2016, 12:52 pm
@dksmall wrote:
I'm preparing my PixHawk based rover for AVC. I can set waypoints and drive a course with good repeatability. I power off the rover and go home. I go back to the same location the next day or so, power the rover, arm it, and hit the start switch. I would expect the rover to drive the course with similar results to the previous day. But it appears to drive around randomly. If I upload the waypoints to the laptop, everything looks as I would expect. I changed the home position just slightly and sent the waypoints back to the rover. Then it rain the course ok. My intention is to run AVC, so I need to learn on Friday and then run on Saturday using Friday's data, but my current operation isn't going to cut it, what am I doing wrong?
Posts: 15
Participants: 3
Read full topic
↧
September 6, 2016, 3:37 pm
@Nick_Nunno wrote:
Is it possible to setup ph to output an analog voltage instead of PWM for steering? If not, has anyone tried a simple low pass filter? Any other way?
Posts: 1
Participants: 1
Read full topic
↧
↧
September 8, 2016, 2:47 pm
@Amrita_Maitra wrote:
Hi,
I have a raspberry pi running Linux on it. There is mavproxy running on the raspberry pi and it shows the parameter values on the mav console. Now I need to get the waypoint parameter from the pixhawk constantly, to trigger the next part of the logic. I want this to be done programmatically rather than through the command prompt.
I am referring to the sample code available on the site which is written in C or python. I need to know how do I run .c or .py file in mavproxy so that I see the output..
Right now I am not able to figure out where and how I place my program logic.
Posts: 3
Participants: 2
Read full topic
↧
September 9, 2016, 10:00 am
@D_S_S wrote:
When trying to configure the SIK telemetry units for Pixhawk via Mission Planner, I cannot connect to the remote/air telemetry unit.
- Ground telemetry unit flashes green
- Air/remote unit flashes green with solid red (when plugged into the boat). When the Pixhawk is plugged into the PC via USB, the unit flashes green with a solid red. I read that solid read means firmware update but it seems to hang in that status when plugged into the pc.
When using Mission Planner/Initial Setup/Optional HW/Sik Radio, I can only connect to the Local/ground unit.
So the question is, what can I do to get the telmetry units to communicate?
Posts: 7
Participants: 3
Read full topic
↧
September 11, 2016, 8:35 am
@dksmall wrote:
Well the last thing I tried to do was setup my rover to start without a radio.
arming_check changed to 8126 (ignore RC failsafe)
fs_action = 0 (disable failsafe)
But the rover will not arm unless I turn on the radio and do the right rudder for a few seconds. Or I can arm it via GCS. It would appear I have to set arming_require to 0, but then I have no system checks before arming.
Is there something I'm missing here? Or should I arm via GCS?
Posts: 4
Participants: 2
Read full topic
↧
September 13, 2016, 9:10 am
@gergo75 wrote:
Hello everybody,
I have one question, i hope somebody can help me in this.
I have one not light weight wehicle, and i attached one arduRover robot. i would like to asking, how do you setting brake and throttle (in one channel, or you use throttle and break in different channels?)?
I mean how can i set break when this wehicle gpoing down downhill and must breaking somehow (specially if i want to stop at waypoint during downhill)
I hope you understand me and somebody can help me in this.
I waiting answers because i got good and helpfully answers here already.
Thank you my friends
Gergo
Posts: 1
Participants: 1
Read full topic
↧
↧
September 15, 2016, 3:13 pm
@busbice wrote:
First of all thank you if you can help or lead me in the right direction! I've been working on this for the past 3 weeks, everyday and cannot resolve.
I am connecting from an RPI to an Adafruit 16 channel PWM to the Traxxas Stampede ESC 3355R. I have no problems controllng the steering or other servos with this configuration through a Python app. However, I cannot get the ESC to respond and I have no idea what the issue is or how I need to set the commands or the ESC to make this connection work.
Any thoughts, help is tremendously appreciated! I live in the Ventura County (Thousand Oaks area) CA if anyone lives near by, I would really like to work in person for an hour or so.
BTW: I tried the PixHawk method but get GPS and AHRS errors so never can get the PixHawk armed through mission planner and after countless calibration attempts, I gave up.
Posts: 1
Participants: 1
Read full topic
↧
September 18, 2016, 9:43 am
@ArthurGuy wrote:
I have been playing with the sonar avoidance options in steering mode and I had a question about two of the params.
One is the rotation time when an obstacle is spotted and the other is the rotation angle.
How do these work together? I would have expected one or another
Thanks
Posts: 5
Participants: 3
Read full topic
↧
September 20, 2016, 6:57 am
@thetacowarrior wrote:
Hey guys I have something that may not be an issue but I am just checking because I have another issue and want to be sure this isn't related. I have a rover with an APM 2.8 mounted pointing left (yaw 270) to save space. The external compass is mounted with the arrow facing the same direction. After compass calibration the heading on mission planner points in the direction of the compass and not the direction the vehicle is pointed. I tried auto missions and they seem to work just fine. Is this normal, or do I have to change the compass orientation as well? I understood the compass orientation references off the FC mounting, so I should have to make no changes in MP if it faces the same direction as the APM.
Thanks.
Posts: 4
Participants: 2
Read full topic
↧
September 20, 2016, 2:52 pm
@thetacowarrior wrote:
What does this mean? I understand its use on a copter, but on a rover the sensor is facing forwards and should return infinity (or the max range of the sensor) when on the ground, correct? Do they need to know the sensor's mounted height off the ground for some reason?
Posts: 1
Participants: 1
Read full topic
↧
↧
September 23, 2016, 1:00 pm
@thetacowarrior wrote:
Hey guys, I have a question you may be able to help with. I want to build a new rover for long range FPV exploration, and I want to try out a tracked platform. I think the tracks might better suit the needs of my rover better than my current SCX10 platform (it tips and gets stuck pretty easily). Has anybody tried Sinoning tracks? I am looking at this or similar:
Any other decent track sets out there that won't break the bank?
Thanks.
Posts: 1
Participants: 1
Read full topic
↧
September 24, 2016, 5:03 pm
@Handyman1078 wrote:
i have built a rover using a brushless SCT drives fine in manual but in auto mode it goes to each waypoint stops and moves the steering from on side to the other and just randomly stops on its way to the next way point the only way to get it back to moving is to change mode from auto to manual back to auto
Posts: 1
Participants: 1
Read full topic
↧
September 26, 2016, 9:03 pm
@thetacowarrior wrote:
I have an idea for a feature for those of us who use rovers for exploration. A sort of backtracking function where either on RTL the rover can follow the path it took out in reverse, or even a manual way to record waypoints on the way out and switch to a form of auto and have the rover follow the waypoints in reverse order when coming back. Is this possible?
Posts: 1
Participants: 1
Read full topic
↧
