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Questions tagged [robotics]

Robotics is the branch of technology that deals with the design, construction, operation, structural disposition, manufacture and application of robots. Robotics is related to the sciences of electronics, engineering, mechanics, and software. You may also consider asking your question on *robotics* Stack Exchange: https://robotics.stackexchange.com/.

Robotics is the branch of technology that deals with the design, construction, operation, structural disposition, manufacture and application of robots and computer systems for their control, sensory feedback, and information processing.

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How to specify a column name and data item in Blueprism?

I'm using Blueprism to work with SQL queries and in my query, the column name is referenced like this [columnName] which is the right way and data items are referenced this way [dataItem]. For example, "SELECT * FROM table WHERE [columnName] =…
Gina
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Best practices in Python for handling external exceptions (do I use raise?)

I'm writing a procedure in Python which at it's fundamental level communicates with a motor controller. It is possible for the controller to throw flags indicating that an error has occurred. I'm trying to figure how to best handle these errors. In…
RyanN
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Calculation of corner points for the localization of robot in 3D data

After segmenting out subset of a pointcloud that fitted using pcl::SACMODEL_LINE RANSAC line segmentation module. In the next step center point of extracted point cloud is computed using pcl::compute3DCentroid(point_cloud, centroid); Which gives…
2017_John
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Light weight, behavior driven multi-agent robot simulator?

Looking for a robot simulator that's multi-agent, light weight, behavior driven, and scriptible, visual runtime -- it's likely 2D too. There is no requirement for the logic to be output to the real world. Aside from behaviors related to sensor/motor…
blunders
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Publishing between gazebo and controller using trajectory_msgs

I'm working on a robot arm, first, i wrote a physical model of the arm with a URDF files. This model work with Rviz and Gazebo. Moreover, i created a controllers.yaml file (for controls all robot's joints) and when I use the command : rostopic pub…
William Fradin
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kuka_grasp_block_playback.py from bulletphysics/bullet3 (pybullet library) not running on my system.

I downloaded the bullet3 github repository (Bullet Physics SDK) from https://github.com/bulletphysics/bullet3.git which contains python bindings for OpenAI Gym examples to run Reinforcement Learning Algorithms. I tried running the…
Nikunj Gupta
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Robotics Cape Library not working on Beaglebone Blue

I have been trying to compile the example off of the BeagleBoneRobotics PDF, but the compiler can't find the header. Here's the code I'm trying to compile: #include #define PIN 67 int main (void){ // export gpio pin for use …
R Hunter
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How do I make two servo's move in opposite directions?

I am trying to make a model of the muscle system in the arm for a project with Arduino, but to accomplish this I need bicep and triceps to move in opposite direction. I am currently experimenting with a potentiometer and trying to make the two…
Thing
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c++ or java for robotics

I know embedded C is used for micro-controllers along with other languages. but what if the control was from a PC, well I had two possible candidates (java and c++) Java is simple and easy also Developer friendly when it comes to threading or GUI,…
Ismail Marmoush
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How to turn any camera into a Depth Camera?

I want to build a depth camera that finds out any image from particular distance. I have already read the following…
Nahid
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How to publish a `geometry_msgs/PoseArray` from the command line?

Can anybody give me an example of geometry_msgs/PoseArray message using rostopic pub? I keep on getting errors when i try and interpret the syntax from the ROS documentation, a solid example would be really helpful.
Ben Bird
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CeeBot : getting robot tilt

Using CeeBot, I haven't found a way to get the tilt angle of a robot. For example, if the robot have to shoot at an enemy, it has to change the angle of the canon to aim at the enemy. But if the robot is not on a flat ground, but on a steep, the…
Jérôme
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How to map out a maze as a robot?

First - I've looked through similar looking questions but they did not solve my problem, this is no repetition (I hope). I'm building and programming a robot with an Arduino Nano that is supposed to solve a maze. It gets put somewhere in the maze…
po0l
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implementing PID algorithm in line following robot

I'm working on a small project with NXT mindstorms set. My intention was to build a Robot that can follow a line very smoothly and as fast as possible. Therefore after a small research I found the PID algorithm and I was able to understand and…
james
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Can I use matlab to program a remote control car?

I'm trying to do a high school project, where i want to create a remote control car with mecanum wheels using matlab. Would anyone know if this is possible and how it is done? I have ordered matlab now and it being shipped, therefore i can mess…
Nick
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