cool, really useful to have a robot agnostic navigation system. I imagine if you ever revisit making a biped, this along with the face tracking nerf turret would lay the foundations for our first robot overlords.

@michealafton428

3 жыл бұрын

This is so true I'm 100% sure anyone who saw this comment wants to be the one who said this like me.

@twobob

3 жыл бұрын

I feel you but the Boston Dynamics may already have a few foundations in mind...

We need more people like this

@Aecor

3 жыл бұрын

@JestEr yep

@Mippi12

3 жыл бұрын

@JestEr true dude.

@kingmasterlord

3 жыл бұрын

demand education reform then. half these schools are still using common core material

@VictorF0326

3 жыл бұрын

This is why we will die to Skynet..

@Aecor

3 жыл бұрын

@@kingmasterlord yeah finally someone that agrees with me. Everyone should be teaches differently with more efficiency. I told this to my teacher and got suspended lol. Government come on do something

as always, excellent video James! 👌😎 amazing how much work it went into this

@rmdavidov

3 жыл бұрын

I didn't think I would see you here, but then again it makes sense

I'm so happy you picked up ROS along the way :)

He is smart, his brain must have so many wrinkles

@xitcix8360

3 жыл бұрын

4 at least

@SlidewaysMotion

3 жыл бұрын

Nuh uh einstein only had 3 folds this got has 2

Very clever. I didn't think such accurate mapping was possible without wheel odometry.

Fantastic engineering detail, Thanks James.

Hello James ! Thank for this sharing

Really good video. My FRC team is looking at implementing this exact Lidar unit into our robot this year.

Was that a hint at another Colin Furze Collaboration?

Great content, so valuable. Maybe we all own a robot in the future thanks to initiative like yours. If not, robots will only belong to the big corporations like today (yes, an ATM is already a robot). The implications are HUGE

Nice progress ! For robot without wheel encoders, I recommend hector packages and robot_localization. You will get a bette steady odom :)

I suggested this change on the last video, good thing it worked

Really great job, Now my robot navigates without wheel odometry perfectly.

You are a great engineer!

Love it. FWIW, the reason most people keep the LIDAR low is for eye-safety

That is sooo cool! I'm betting he'll add it to a skateboard too. I'd love to see that in one of the Star Wars robots!

Very nicely done!

Very good work

If you'd make an online course about robotics or 3d desgin i'd totally buy it!

@jjudd

3 жыл бұрын

I'd pay good money for it too

"The 3 Laws of robotics prevent a robot from harming a human." *only programs 2 laws into robot*

Really!!!! James and Collin building an autonomous tank with a cannon! This is how we get robot world domination people!!!

we do like your kitchen. awesome video

Nice build! The laser module looks kind of funny though, maybe having a rotating mirror would be better

Suggestion: it may be better to place the sensors near the centre of rotation, particularly on OpenDog where you maybe remake the front panel to have a hole for them. This way there will be less noise as they won't move as much as on the top of the robot. You will lose some of the rear FOV but that can be fixed by adding more or just rotating the robot itself like a real dog would have to. Hope this helps!

Great video!

James, if you are using the RealSense camera, that laser is an overkill. You can get the distance to the walls/obstacles simply from the depth map produced by the camera if you don't have a SLAM mapping module in ROS that can use the camera directly. That will save you also quite a bit of current (those LIDARs are pretty power hungry).

I can't belive this information is free :D

Colin Furze controlling an autonomous robot that James will build in the future: At my signal, unleash hell !

the camera already looks like eyes and the lidar resembles a tophat ... maybe that could be a nice theme for the "module"

Good video

Don't forget to write a nice urdf for your robots 😀 . Nice work

@jamesbruton

3 жыл бұрын

Yes, it's mostly proof of concept for now.

You should look into using some sort of graph SLAM with the LIDAR. I didn't realize that all of your position data came from the wheel encoders, as those lose tracking over time, especially at higher speeds/accelerations.

That is pretty neat! Any ideas of where I can find code to run an ROS node on a 65C02? I have an old Maxx Steele robot from the 80's that would make good use of the platform! Also, your "target" head looks like Ensign Ro from Star Trek The Next Generation.

Very Good

Would using nylon fasteners be an option to reduce weight? Or are they too weak? Another option would be to machine fasteners out of aluminium

Can you put it on a drone please! Would be awesome to see what it's capable of like navigating stairs and if combining with other drone sensors like barometer, optical flow and ultrasound will make it a beast!

Love you open your sources code

Awesome 👌

What about building the Lidar onto a platform with an angel, so as it moves, you can scan the whole enviorment in 3D. Do you think, you could get this to work? :)

I never realized ROS is that useful before

Excellent job any opportunity to learn from you

Do you have a link to the joysticks that you used for the controller. It would really help me with my robot

So cool

Hello Nice video, What version of ros do you use?

I still think it needs to be a on a gimble that self levels. If you can get it working without one, maybe ad in a head that can look around so the robot can get more data about the environment?

You should probably put the lidar on a servo or stepper motor so that you can keep the lidar facing one way the whole time when it turns. I noticed that when you turn it messes with the whole map because the lidar isn’t turning the amount it’s programmed to turn it could be you a little faster or slower. If you put it on a servo or motor though you could get rid of that problem.

Amazing work James ! From the video I guess you didn't install Jetson Nano Developer kit image on your Jetson Nano instead you used a normal Ubuntu , is this right ? and Is there is a reason for that? Best of luck with your upcoming projects :)

Would using a gimbal (or 2) (DIY or purchased) help for stability for the camera & sensors, on the dog!? That was just my immediate thought to maintain stability and to try and curb/minimise other issues like sensor drift? All theoretical, of course, but still worthy of trying if resources are available.

Super!

What lidar sensor did you use?

Working backwards - could you use the movement data from the RealSense to help stabilise the dog?

James, so can you make the same map with a D415?

can you use a laser mouse set up for track on the big dog to calculate it position

Amazing😱😱😱❤️

what programm do you use to make the data visible on pc and can i use these datas on a rasberry pi to navigate??

Can this scale up to my lawn tractor? I have a 1 Acre lot with lots of bushes and trees to avoid.

Cool!

hello from Qazaqstan

i would be interested to see how a robot performs with a neural network for a brain. where you simply give it a mission (for example go to this place), attatch a laser to it and then let it learn to move around.

Amazing project, Im new to ROS and I have a quick question, how do you visualize rviz remotely?

@matthewdtwo

3 жыл бұрын

you just need to set your environmental variables for ROS_MASTER_URI, ROS_IP and ROS_HOSTNAME to the instance that's running roscore - checkout the networking section of the ROS docs for more details.

can´t you build a modul under the dog that can act as legs were the robot can rest on. I mean that the legs can extend or retract when the dog is supposed to stand still. via servo or geared motor. sorry for my terrible englisch, im from germany.

Thought this could be ideal for the little ROS project I'm building but it looks like the T256 is discontinued and there's no new model coming out. Such a shame.

How does one get into robotics. any online courses you'd recommend?

I wish the Lidar module used in the new iPhone/iPad could be used independently for projects like this.

@Innomen

3 жыл бұрын

But where would we put the meter? /tesla dies broke

very beautyfull work!! I notice You don't use belt anymore for transimssion...good choise...belt will broke after few years eather you use the robot or not....gears are more strong and will broke after more time ..and only if were used.... will be great it you will use gears (3d printed is better for makers XD) in all your future project...

that Nerf turret is exactly the same technology as Iron Man's shoulder guns that shoot hostage-taking terrorists

James, I think you underestimate the quality of your leg odometry and the sensor fusion algorithm the comes with the T265. Each joint is directly coupled with an econder you can read and all the wobble will be picked up by the encoder. The only issue would be if the leg slips on the floor but that issue is still present on wheeled robots.

Your laser scan seems to distort when the robot is rotated rapidly. I wonder if that comes from a synchronization/latency issue between the tracking camera updates vs the laser scans. I'd be interested to know what's going on if you figure it out. Also, why flat head screws?!

@jamesbruton

3 жыл бұрын

I probably drove too fast when I did the map, the laser is the cheapest available also. The screws are countersunk?

Please do a project using oak-D

You should make a robot that both navigates your house and shoots everyone it sees so you just have an assassin robot trying to shoot everyone in the house

you might try using ultrasound in conjunction with the lidar?

@jonasstahl9826

3 жыл бұрын

Ultrasonic is pretty bad in comperision to lidar. Ultrasonic cant detected soft stuff like pillows or walls in an angle do to reflexion of the echo, same with round object like poles. The messearing is pretty slow do to the spead of sound and using multiple sensor is difficult.

@davidvwilliamson

3 жыл бұрын

@@jonasstahl9826 might give a useful second opinion on the lidar ghost images. ultrasound is quite good at showing where things aren't

Next thing you'll know he'll have his whole house operated by robots

Hey with a 3d camera like the intel T265 that you have you should be able to get your map data without the additional lidar If the Camera doesnt give you the depth info into ROS on its own you should be able to get them with the raw Footage of the Camera with a little help from openCV

@jamesbruton

3 жыл бұрын

The T265 is tracking only. I have the Depth camera, but the LIDAR is 360'.

I will be honest, if I hadn't used ROS myself before, I might have had trouble following what exactly you were doing in this video.

I don't really understand the need for the Arduino; the Jetson nano has enough GPIO pins to control the motors and read the encoders. Is there some latency issue that makes it better to use the Arduino or are you just more comfortable having it control the locomotion?

@jamesbruton

3 жыл бұрын

I know how to do it this way, plus it can be bolted onto any Arduino robot with differential drive.

@ProlificSwan

3 жыл бұрын

@@jamesbruton I see, makes sense. I'm planning my own autonomous robot build with the Jetson Nano right now, so I was curious. I suppose there could be an added benefit of not having motors directly controlled by scheduled processes too.

Your amcl seems to have an uncertainty that is way too big. I think this is probaly causing the ghosting, because the laser scans are recorded in the wrong postions by the local costmap. Try to tune the amcl to rely more on the odometry by turning down the `odom_alpha` parameters. Especially `odom_alpha1`.

@ct2034

3 жыл бұрын

And you must set `odom_model_type` to `omni-corrected`

Nice, first 350 xD

With this project, is it possible to make the T265 follow a human? If so, how?

a cool implimentation/toy using this would be a RC car that you can drive that would sense if you were going to crash and prevent it. either by steering away from walls or stopping the car. would make a fun tesla autodriving rc car :P

Canyou made it smaller?

Now build a hand and drop that on there. ThingBot.

I wish Lidar was more accessible.

In the year 2020, James robots achieved self awarene..... Apologies for the Rowan Atkinson death joke.

11/10 not mad just dissipointed

👍✨

show !!!

Why not do real Steel atom robots??

Flat head screws.....WHY!!!

@jamesbruton

3 жыл бұрын

Because I have some

i sure hope your mannequin isnt named Sarah Conner

I did the 101 lkke

self-excited auto-mapping, "getting to know"

@Jkauppa

3 жыл бұрын

you could do automatic, or scheduled on detected objects, like (waterproof) watering some plants, if found and state recorded

@Jkauppa

3 жыл бұрын

why does that sound like an old ribbon printer

@Jkauppa

3 жыл бұрын

spray watering might be the best

What books do you reed to understand arduino

@jamesbruton

3 жыл бұрын

The Adafruit Arduino tutorials are pretty good.

@alexpomone

3 жыл бұрын

Thanks James

road to 100 trillion subs 😀😀😉😉😉

Attach it to that mantis robot :)

@jamesbruton

3 жыл бұрын

It would probably work, although it would need to be somewhere with a 360 view without the legs in the way.

@darrenfalconer3267

3 жыл бұрын

@@jamesbruton i don't think I'm ready for that kind of scary haha Imagine just seeing that patrolling the streets.

Does he sleeps sometime?

One question in a video you published 5 weeks ago you said you just use codes from rebuild examples. Isn't that boring af to just copy and paste I mean the spirit of tinkering is building it your self and explorer new areas. That makes what makes it fun. I know you can't build anything your self but I think just relying on already finished projects with we'll define documentation is like let the robot be built by someone else. There is no part of yourself in it. Don't understand me wrong I know you put probably many hours of work into it. But don't try thinks and maybe failed at new thinks nobody has done before is not a bad thing because if hat no one that failed it the first place at a new topic there would be no evolution bc everyone is just relying on the thing that were made in the past by someone else.

hi

Hello

intel L515 = no moving parts Lidar.