Hello everyone, My team and I are currently building a small autonomous car, and I am responsible for the control system. While I have studied control theories, this is my first time applying them in a project. We will be using a 2D LiDAR, ultrasonic sensors, motors with encoders, and a steering system. If anyone has experience in this area, what I should do or learn, please share your insights.

Any book recommendations for someone new to robotics with a goal of building a robotic arm?

The arm does not have to be super complicated, but id like it to at least have the ability to grab and let go of small things.

If you've used EMG signals to control a robot or a bionic hand, what kind of EMG signal features have you extracted to feed the neural network?

I am building a quadruped, and I have fallen short of servos of 35.5kgf at 7.4V. They are out of stock, so I am thinking of buying 25kgf servos. My Quadruped's leg is about at max 25 cm of the gound and I am building the torso out of acrylic, so its weight is gonna be less. Though I need it to walk tough terrains. The torso will be about 30cmx15cmx12cm (approx) torso. So we are dealing with about 3kg without payload. Should I buy these 25kgf servos and if I do (after which I will have 5 35kgf servos and 7 25kgf servos), where should I place them, knee, hip joint(knee plane rotation) or hip joint(lateral rotation). If possible, someone also help me with the physics here
(but please help me with this one. I really need to do this. I don't really have anyone to help me. I am all alone in this :X)

As a son who want to helps his parents , I wanna know your opinion , if you're a senior ( or let's imagine it ) , would you prefer to have a robot ( kinda like the Optimus robot released by Tesla recently ) help you in your daily task ad assist you , or have some personnal help assistance ? So having someone coming everyday to help you , like would these kind of robots could be scary for older people ?

Hello, I'm planning to create an automatic screwdriving station using an ABB SCARA robot for a university project. I was wondering if anyone has experience and could recommend a screwdriving tool compatible with SCARA robots, and if you could offer any advice. Thank you very much!

Hey guys, im designing a robot and im looking for information on a type of joint. It has 3 servos around it and they all push and pull to make a rotation (looks like a delta robot but no linear motion) I did a little mock up in fusion and would like any information on this type of setup both mechanically and setup (planning ROS2 at the moment)

2 DOF rotation around the sphere

Hello, I'm new to this community!

Not sure how much research exists on this, as I've had difficulty finding applicable search terms or github repos that deal with this case.

Take a 2D game. Any game. For simplicity a top down game or side-ways platformer.

https://preview.redd.it/lvccagmmu6wd1.png?width=850&format=png&auto=webp&s=d45d9b336aa870787c17e91b3e1fdd71dd9b2ba8

I want to do, what I presume is considered "SLAM", is take a video recording of gameplay (*) and find the camera movement position and record the mapping. So if I play, Mario, or Earthbound, essentially I'm building a map that I can look at afterward, and I can also see the camera position over time and replay it over the map.

*real-time is a goal, but I can work on that as a later milestone.

Other practical issues will be things like, detecting teleporting, map changes, special effects or menus confusing the camera position estimate, etc. But I'll start working on those when I understand the theory first. Most games aren't rotating or zooming the camera if that simplifies things, and then I can work toward that.

I did a tiny amount of SLAM and ROS over 13 years ago in college robotics. But I don't know enough to know if my traditional robotics books apply to this kind of scenario, as they typically revolve around LIDAR projections, and my memory has forgotten plenty of it.

If I could run this on a 3D RTS like Starcraft 2, or 3D first-person game and build essentially a LIDAR model of what I'm looking at, that'd be cool too. But again, I'm so inexperienced I don't know if I'm asking for the moon by adding 3D, or, asking a "duh, the standard algorithm would it'd work in all of these cases" question.

Any applicable background, key terms, would be greatly appreciated.

Thanks,

It feels like we could be in a similar period than the early days of computers, where hobbyists were using the first affordable computers, but I don't feel like there's a really good product there for people to take and build on top of / train. There's the mobile aloha base but it's too big and expensive.

Is this because of lack of actual use-cases or still a tech limitation?

i have trying to use this code to record some random aruco marker pose and there ID but the dataset I am getting has all incorrect coodinates. like the closest landmark id:8 pose(1.38, 0.48) which is in front of robot(0,0) and the robot is recording it as (-1.3685,-0.25644) first thought would be to check and verify camera parameters did that and result was almost the same with different camera_param. after this second guess would be detectarcuposes function which I don't know if something is wrong in it or not. how do get these coordinates right and then go on improving it's accuracy?

https://preview.redd.it/dlhn2s63f6wd1.png?width=1078&format=png&auto=webp&s=3abfdf304fc316253762204fb5a48bfc157196fb

https://preview.redd.it/m979rm0o86wd1.png?width=1392&format=png&auto=webp&s=705a0092b1fb2d8c76c5cd49546ee2f9ff073001

https://preview.redd.it/d94h5p4hd6wd1.png?width=1230&format=png&auto=webp&s=7534bc073ebb4ea65fd41668c5fddb4f70f2946f

https://preview.redd.it/3fn6mcrkd6wd1.png?width=767&format=png&auto=webp&s=fae877fc133a028488df5c956792560a3789527a

I am currently making a robot that needs to accelerate to a velocity a 1ft/s in 1 to 2 seconds. My robot is about 60 pounds, so to do this I would hypothetically need a huge motor to get it ramped up to speed that quickly. My plan is to place my robot by a wall, and use a solenoid to push off the wall in combination with a small motor. The solenoid would greatly increase initial acceleration and the small motor would allow the robot to maintain speed. Has anyone ever tried something like this, or does anyone see this situation not working?

I thought it would be about PIDs and LQR but apparently it's about path planning and controllers follow the plan generated. I have roughly a week and a half to prepare and idk anything, what do i study? They said there would be physics and differential equations but what exactly? It's pretty broad. Help please.

What’s the best robotic arm under 1k.

I don’t care about rigidity, but should have decent torque and reach. 1000g at 40cm reach would do.

With torque feedback and back-drivable.

im trying to run a ir sensor past a sanded and spray painted acrylic tube(its still translucent when a light source is behind it).
will it still detect obstacles outside of the pipe?

A project I currently have in mind is to build a robot arm to pass me things or things. I want to build this for 3 reasons:

1. It'll be both fun and cool.
2. Because why not
3. One of my friends said I wouldn't and I want to prove him wrong.

I have ran into a problem though, I don't know what type of motors to use so I'm asking a bunch of strangers on the Internet, I need them to be precise but also be able to hold enough weight to be useful. Due to this my question is what motors should I use?

Hi guys I am senior Electrical and Communication Engineering student and my graduation project is Autonomous car with V2I for Parking. The Project have 2 Raspberry pi one for the Autonomous car and the second for the V2I part In the V2I part I want the camera detect the avaliable spots and send the nearest avaliable spot to the Autonomous car and the car go to this spot and park there. The problem is how the car will know the path to this avaliable spot?

What advantages would visual slam have over tradiitional lidar based slam? Or in general, why would visual odometry be more beneficial?* If it is so, in the first place, idk really)

Hi, I’ve just joined the robotics team here in my high school (I’m Mexican sorry about my poor English) and the teacher in charge gave me as homework to make this “mechanical arm” and explain to him how it works, any tips or videos you recommend to understand it? (I’m new in this field)

He gave me this as reference https://www.youtube.com/watch?v=Bzsw-3sJ-I8&list=PL_cMk9BBkH7GV8-029xwOVr4KmiXojqDw&index=4

Many degrees of freedom (DoFs) in the human body are redundant, a result of evolution. However, they do influence certain movements and behaviors.

So, when designing a humanoid robot (or a dexterous robot hand), do we need to consider all these DoFs?

The mainstream answer seems to be “no,” but what do you think?