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
@ben,
Historically the ArduRover2 code will cause the APM to go into reset and resturn to the manual mode when the auto mode is selected and there are no waypoints in memory.
Regards,
TCIII
so with al this done do i have to make the "home" on flight planner ? and then i can test ? becoz before i didnt jav any waypoint or home set.
@ben,
My suggestion is to make Tridge a friend and send him a pm stating your request and the need for it.
Regards,
TCIII
could u ask tridge.or.someone how to delete ch3 from throttling wen failsafe ...turning off receiver. coz i tried seperate battery and same thing. its something to do with the.apm unit .
Hi All,
I have discussed the proposed configuration change to two throttles with Chris Anderson and he is in agreement with me that we will save that configuration change for a later place in time.
Our main commitment at the moment, due to the tight allocation of programming resources, is to complete the update of the present ArduRover2 code for a beta and then final release as we cannot go on forever with alpha updates.
The members who are working with twin screw drives are welcome to start a User Group committed to aquatic vehicles or establish a discussion within the ArduRover User Group that will deal with the changes to the ArduRover2 code required for the implementation of the two throttles configuration.
Regards,
TCIII
What other reciever has firmware specific for bots?
Maybe they would bring it back just for us;-)
another good use for multiple channels is a 4 wheel steering chassis. (right turn, left turn, right sideways, left sideways) think RC crawler. right now I use a reversing Y cable to only allow right/left steering but i could think of times when a "slide right/left" would also help.
Dave P
@Doug,
What you are describing for your boating requirements is equivalent to skid (differential) steering. My 6WD rover uses skid steering where the wheels on the opposite side of the turn are reversed in relation to the turn side.
Vijay is indeed correct with his observation. Since two throttles are not supported in the current configuration it may take a while to be able to support that configuration in the code. We are hard pressed, to say the least, just to try to produce a stable release in a reasonable amount of time without modifying the present configuration. I will get with Tridge and let your requirements be known, but I do not think they will be met in the near future unfortunately.
In the mean time I suggest that you investigate Vijay's recommendation to create a differential steering/throttle control in hardware/software.
Regards,
TCIII
A boat with twin screws has a separate control for each: Forward and Reverse. Helps in tight turns. Driving both with one control, both making the same turns in the same direction, will not do. We need TWO Throttle Channels.
IMHO driving a twin screw boat should not be much different than a differential drive rover. Just use a mixer to convert the steering+throttle input from the APM to left and right drive signals. You can easily program a Arduino UNO ($29) to do this. Pololu has a number of motor drivers and programs.
- Vijay
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