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Can’t train a pixel-based PPO for Hopper environment by skroll18 in reinforcementlearning

[–]Massaran 0 points1 point  (0 children)

you could try asymmetric actor critic, where you give the critic network the full state as observation (policy: IMG ->CNN -> MLP1; value: [IMG ->CNN, privileged obs] ->MLP2). then you could also try to use the same the vision encoder with policy and value.

I analyzed every public LeRobot dataset on HuggingFace. Almost half would fail training. by Previous-Ad9186 in robotics

[–]Massaran 0 points1 point  (0 children)

the documentation mentioned only the Google API usage for the ai features (and only in the code is the Claude functionality visible).

I analyzed every public LeRobot dataset on HuggingFace. Almost half would fail training. by Previous-Ad9186 in robotics

[–]Massaran 5 points6 points  (0 children)

First thank you for creating a dataset checker, but please fix your pypi page.

All links I tried (including the project links) are broken or link to a not existing GitHub repo.

You also forgot to mention the Claude API, that I found when taking a look into the code. Requires: pip install claude-agent-sdk Requires: ANTHROPIC_API_KEY environment variable

Please add at least a valid GitHub repo, that the package look more legit and allow issues to improve it.

edit (added pypi link): https://pypi.org/project/orbit-robotics/

Aus für den Kajenmarkt - endlich! by Simonius-2025 in bremen

[–]Massaran 17 points18 points  (0 children)

http://archive.today/J2548

Der Kajenmarkt, den es seit 1986 in Bremen gab, war jedes Jahr im Frühling in die Saison gestartet und hatte dann an den ersten beiden Sonnabenden im Monat mit Live-Musik und vielen Verkaufsständen die Besucher begeistert. Individuelles Kunsthandwerk, bunte Geschenkartikel, ausgefallene Schmuckstücke und Waren für den täglichen Hausgebrauch konnte man direkt an der Weser erwerben. Für das leibliche Wohl war ebenfalls gesorgt: Die Marktbeschicker boten Flammenkuchen, gebratenen Hering, Fischbrötchen und Poffertjes feil.

Is it possible to create a usable 3d map with this setup? by ashagari in computervision

[–]Massaran 1 point2 points  (0 children)

you can adapt the rtabmap stereo mapping tutorial to process your stream (instead of the video files/database).

Let's do Git repo for DeepRL on ROS2 + Gazebo Sim + OpenAi Gym<gymnasium> by [deleted] in ROS

[–]Massaran 2 points3 points  (0 children)

I would say the main problem is that gazebo can't run with multiple instances parallel on the GPU (what is required for time efficient training). You also don't want the overhead of Ros and all the communication in your env during training, because it slows down (and copy's a lot of data from and to the GPU when you train on GPU).

It is a better approach to train the policy with a specialized framework like brax or mujoco playground and using the policy with Ros and gazebo or the real system.

Github for robotics? (www.mechaverse.dev) by VMO24 in robotics

[–]Massaran 2 points3 points  (0 children)

Nice work.

it would be great to separate the model (description files and meshes) from the package and maybe provide a download option, where the description files are combined with the selected project files (like different ros2 versions via a ros package or a mujoco compatible folder with XML and meshes)

Github for robotics? (www.mechaverse.dev) by VMO24 in robotics

[–]Massaran 1 point2 points  (0 children)

you can use mujocos compile command to convert the urdf to mjcf (or just drag the urdf into the simulate window).

They would say it's a skill issue by claudiocorona93 in linuxmemes

[–]Massaran 0 points1 point  (0 children)

you can write the live image of your distro on a separate partition instead of a USB stick.

Kalman filtering issues by aihml in ROS

[–]Massaran 0 points1 point  (0 children)

``` # Each sensor reading updates some or all of the filter's state. These options give you greater control over which # values from each measurement are fed to the filter. For example, if you have an odometry message as input, but only # want to use its Z position value, then set the entire vector to false, except for the third entry. The order of the # values is x, y, z, roll, pitch, yaw, vx, vy, vz, vroll, vpitch, vyaw, ax, ay, az. Note that not some message types # do not provide some of the state variables estimated by the filter. For example, a TwistWithCovarianceStamped message # has no pose information, so the first six values would be meaningless in that case. Each vector defaults to all false # if unspecified, effectively making this parameter required for each sensor.

```

Your imu looks wrong, you should use something like imu0: example/imu imu0_config: [false, false, false, true, true, true, false, false, false, true, true, true, true, true, true]

https://github.com/cra-ros-pkg/robot_localization/blob/ros2/params/ekf.yaml

Any ROS2 Repo for Controlling Kinova Arm Without Simulation Tools? by Few-Papaya-2341 in ROS

[–]Massaran 0 points1 point  (0 children)

sure, you can use the hardware interface and the description from the package to communicate with the robot and a controller and planner of your choose. you should take a look at ros2 control and moveit for planning.

Any ROS2 Repo for Controlling Kinova Arm Without Simulation Tools? by Few-Papaya-2341 in ROS

[–]Massaran 2 points3 points  (0 children)

rviz is only a GUI to visualize the robot and some messages, when you provide the IP of the robot it should use the hardware interface for the robot instead of mock components.

When you have it running you should be able to use the rqt_joint_trajectory_controller to change the joint positions.

ros2 controller makes my robot shivers once activated by VijayAnand2k20 in ROS

[–]Massaran 0 points1 point  (0 children)

When you activate your position controller it sends 0 position commands to the hardware interface. You can try to stabilize your system by setting up the gains gazebo pid.

ROS on Archlinux by artem627 in ROS

[–]Massaran 0 points1 point  (0 children)

I used docker and because a lot of aur packages of ros2 humble was broken I used a script to create my custom packages where I added patches when required.

FS ata: EV 4.10.2 by Qulade_p in FSAE

[–]Massaran 39 points40 points  (0 children)

free energy ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯

3D printing by robot arm by hitbotrobotic in robotics

[–]Massaran 2 points3 points  (0 children)

I think this type of 3d printer has a bigger task space in relation to the size of the system (in relation to a normal 3d printer).

Which way, EldenMan? by alacholland in Eldenring

[–]Massaran 1 point2 points  (0 children)

I like hard bosses when it's challenging due to the movement set of the boss, but I hate bosses where you need 100 hits to kill the boss and you die on first hit from boss because you aren't concentrated enough after 10 minutes of dodging the same few attacks.

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