Dedicated to the exchange of useful information between members using the Arduino or other families of processors for autonomous rovers.
Hi All,
Before posting an issue or a problem in the ArduRover Discussion Forum, please check the wiki table of contents, review the firmware release notes in the subforum, and search that subforum for existing answers to your question. Help avoid duplicate threads by finding other members with the same issue and their solution.
When formulating your post, use a descriptive title such as "rover will not navigate to waypoints in the Auto mode" (not "HELP!" or "Problem").
Please include the following information to help diagnose your query:
TCIII
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Hi, i am looking to build a new rover, but i need some advice on the chassis. I like the 4wd chassis/tank look and prefer it over the crawler/rc look.are those any good though? most people recommend crawlers.I am looking to get something from banggood, any advice will be highly appreciated. thanks
Read more…Hi all, I have a skid steer robot using a pixhawk cube, one 1x15 roboclaw motor controller and a dagu wild thumper 4 wheel chassis. I have skid steering working so far, testing motor c and motor d tests works as described and the vehicle can be controlled in manual mode. However, upon using any mode other than manual mode the rover wants to shake and pivot on the spot, and it seems the steering PID controller oscillates and these oscillations get larger. i have tried everything but it is still…
Read more…Hi,I have converted a Traxxas X-Maxx into a rover using the Pixhawk Cube 2 controller kit with a Here GNSS.I swapped out the original X-Maxx remote controller for an X6R receiver and Taranis QX7 radio.latest version of ArduRover firmware installed as of 8/11/18. The rover has an EZRun Max6 ESC. The problem now is the ESC control over the transition into reverse. The ESC is currently set to it's Running Mode Option 2: "Forward/Reverse with Break", AKA the "Double Click Method".What this mode…
Read more…Hi all.I know this is an Adurover group, but Thought I would reach out and try my odds for some help as I'm perplexed by this problem. I have a Traxxas X-Maxx set up with a Pixhawk Cube 2.1 and the Here GPS. I'm using a Tarranis X7 remote controller and a X8R Sbus Receiver. I'm using QGroundControl with the latest, Pixhawk 1.8.0 Firmware with the Generic Rover airframe profile installed. As instructed, I have Steering servo wired into Main 2 and Throttle ESC wired into Main 4. Sensors are…
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Comments
@Vijay,
I suggest that you put a small ground plane (metallic plate) under the antenna to improve reception.
Regards,
TCIII
Hi All,
A little note concerning the ArduRover IR sensor obstacle avoidance function:
The IR sensor obstacle avoidance function only works on ArduRover2 v2.20b which can be loaded from the MP. Also the obstacle avoidance function only works with the Sharp GP2Y0A21 10 - 80 cm IR sensor and should be connected to the Atmel 2560 mcu A(0) analog input.
The IR sensor obstacle avoidance function does not work on any version of the ArduRover2 v2.30 alpha code. The present ArduRover2 v2.30 alpha code only reads the A to D converter channel for the air speed indicator which is being used for the acoustic sonar sensor input on the the multicopters. The ArduRover2 v2.30 alpha code reads that input, but does nothing with the value that it reads as far as obstacle avoidance goes.
Tridge and I are working on restoring the IR sensor obstacle avoidance function and on adding several control parameters to that function. However that effort is still in the works at this time.
I have enabled the IR obstacle avoidance function in the ArduRover2 V2.20b code and know that it works.
Regards,
TCIII
yea were getin alot of snow soon so preping up for that. and to take my robot somwhere i need 2 people to pick it up amd put in truck. it weighs bout 40kg and awkward to carry.so i cant test auto anywhere except in a field just incase it runs off :p
Hello All:
I have been able to get the ublox LEA-6P GPS to talk to the rover APM. This thing is supposed use PPP (whatever that is) to get better position accuracy for slow moving vehicles. Also, it has a SMA connnectors for an external active antenna. So far I have it talking. 3D fix took 15 seconds and 9 sats HDOP 1.1. This is indoors, so I am hoping for HDOP around 0.7 - 0.8 outside. I am going to put a foot high non-metallic mast above the rover and mount the antenna on it.
Tomorrow is tax prep day for me so I will give you a update on whether it improves overall waypoint and course accuracy later in the week.
- Vijay
@ben - I did a lot of testing in empty parking lots and a playground nearby... where are you located? buried under snow? We're getting a pretty heavy snow today but thankfully it melts within a week, usually.
@ben,
No problem helping you. In the mean time I suggest that you read JLN's ArduRover Discussion and the discussions here on the ArduRover User Group. That's the way I started.
Regards,
TCIII
@ben,
Your home location reported by the GPS and your actual location will depend on the number os sats the GPS is reporting and the HDOP. You need 8 or more sats and an HDOP near 1 for accurate location reporting. Also being inside reduces GPS accuracy.
Regards,
TCIII
oh wow. uh wat if i dont have 10-20meters to work with :p that bad . and wen i tested it my home point was bout in my garage and robot was maybe 2 meters away from hit.
@ben,
You can read the ArduPlane Wiki on how to use the Flight Planner to setup waypoints. You just need two: the home waypoint which is automatic and one that you select that is at least 10 - 20 meters away from the home point. Set the waypoint radius to 1 or 2 meters. Then write them to the APM and read them back to make sure that they got written to memory.
Regards,
TCIII
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