Robotics | Robotics Projects | Robotics library

I am working on my first Raspberry Pi project while following a course for creating a line-following robot. This is the course. I followed all the instructions and connected the pins as it describes but when I run the code on the Raspberry Pi OS it throws an error:

gpiozero.exc.PinPWMUnsupported: PWM is not supported on pin GPIO7 This is the code:

I have built a small mock website to play around with video backgrounds. However it breaks at >1900px wide and fails to resize when shrinking the viewport.

Here is the github page and here is the repo containing source files

Here is the HTML for the container (Which is part of the header):

I'm trying to detect the overall movement of the panel in respect to the screen, not the movement inside the panel itself, so I can fade away the image when the panel moves up. And bring it back when the panel moves down.

So far I had no luck.

I tried to use GestureDetector onVerticalDragUpdate, but it didn't work either.

Thanks in advance...

Here's my code:-

I want to fetch the value of option from select tag but I'm keep getting Cannot read property 'value' of undefined below is my HTML and JAVA script code.

I need help with fixing my header I can not find the problem! At the beginning it looks fine but when you scroll down it cuts part of it off. But when you scroll back up it goes normal. I think it is with the hamburger menu because when you click on it, it increases the cut off. Here is the link to the website. https://perfectparadox8400.000webhostapp.com/ and here is a gif of what happens!

Link to the picture of what happens!

I only happens when you are on a phone. I used the inspector tools to test it and I did try it on a phone to.

Here is the header code.

I finished writing a small blog application using Gatsby and React. Everything works fine when I try it locally. So I proceed with gatsby build and deploy the build folder into Netlify. However, after the deployment, the content of some of the pages is not shown despite locally everything works fine.

Description of the problem: I have a navbar with "Home", "Healthcare", "Technology", "Robotics", "Posts", "NewsLetter", and every time a user clicks on for example "Robotics" a series of posts from that category is shown. Now locally everything works fine but as soon as I deploy I can only see "Posts" page which carries all the posts. The other choices from the navbar are not rendering the other posts categories.

Below the error I am getting from the terminal:

warn Non-deterministic routing danger: Attempting to create page: "/healthcare/", but page "/healthcare" already exists This could lead to non-deterministic routing behavior

warn Non-deterministic routing danger: Attempting to create page: "/robotics/", but page "/robotics" already exists This could lead to non-deterministic routing behavior

warn Non-deterministic routing danger: Attempting to create page: "/technology/", but page "/technology" already exists This could lead to non-deterministic routing behavior

This leads me to think that some pages are not rendered at the proper time, however, this does not explain the difference between localhost perfectly working and the deployed version not working properly.

Below my gatsby-node.js

I have the following array:

Are there any existing driver libraries (C/C++ preferred) for the Beaglebone Motor Cape? If not, what would be the best examples/tutorials to follow for starting to interact directly with this cape?

I have previously used the Robot Control Library for interacting with the H-bridge motor drivers on the Robotics Cape, but the pinout is different between the two capes. I don't know how easy or hard it would be to adapt the Robot Control Library to the Motor Cape versus writing something specifically for the Motor Cape.

I am trying to store the content of a callback function, in order to access and manipulate the data within the script. As far as I am concerned, the given function .subscribe() in my code below does not return anything (None). My function is only passed as a reference to the function as an argument. Is there a way to return the data from the function that calls my function?

My code is a simple example with roslibpy (a library for Python that interacts with the open-source robotics framework ROS through Websockets). It is mentioned, that the data is published as a stream via a Websocket each time a message is published into the topic /turtle1/pose. My goal here is to return the data that is being published into the topic. The print command provides a nice visualization of the data, which just works fine.