Coordinate Transformations - How robots move through space

[@baileycarter7351]

Your video quality from when you started has increased dramtacally, and your newer content is visually fantastic for learning. Great work, keep it up.

[@ArticulatedRobotics]

Thanks!

[@mikekopack6441]

About 2 years ago I sat through a presentation by somebody in another part of my company where they had built up a robotic system to perform some tasks. The audience was all super interested and attentive and it certainly seemed like they all were believing this person had done something amazing. 1/3 of the presentation talking about how the person had built up a python library to do coordinate transforms. When he finished his presentation, I raised my hand and asked " Um, WHY didn't you use ROS? It would have done ALL of this FOR YOU. It would have taken you < 10 hours to do everything you spent 6 months building". Everyone in the room gasped and looked at me. The presenter meekly said "Um, I didn't know about ROS". I smacked my forehead.

[@ArticulatedRobotics]

Yeah it's crazy! My company is still using a custom transform system I knocked up years ago and every time I need to work on it I think we should just switch it over to ROS and be done with it. We'll get there one day...

[@Goodwill345]

This series is super helpful, this video series will be a requirement for any starter robotics engineer

[@randomlifebits]

As a roboticist who works with ROS(2), I must say these videos are really something. At the moment maybe the best step by step guide available on the internet!! :) Among infinite number of questions that exist in Robotics and in ROS programming a big one for a newbie is: what are the dominant characterstics for a laptop/pc to be able to work laglessly with ROS(2)?

[@ArticulatedRobotics]

Thanks! I guess that's one of those "how long is a piece of string" questions. In my day job I work on systems with multiple lidars with large scans (over 1M data points/sec on each one) and this takes quite a bit of processing! On the other hand, the stuff I've shown in my other videos doesn't take much at all. I'd generally recommend a recent i5, 16GB RAM as a starting point but there really are so many options!

[@BentoBlocs]

Maybe referring to linear maps would make it clearer to people new to the field? Linear function is quite an overloaded term, and i think "map" works quite nicely with the concept of moving one space onto another.

[@eskibrew]

Interesting, looking forward to the translation video

[@mikekopack6441]

The biggest thing with using TF is that you MUST get your URDF / robot model correct. After that ROS makes it STUPID simple!

[@tieuphamdenday]

I'm working with the Falcon haptic right now but i have trouble with writing code for publisher and subcriber to publish the position of haptic for the mobile robot ( using raspberry 3) and subcribe the data from RPLidar. How should i do now ? I'm not good at coding :

[@jacquetdaniel4897]

Thank you, you are helping me making my dream come true🔥🔥

[@hsenagrahdeers]

First to comment! As always, great video!

[@ArticulatedRobotics]

Thanks!

[@mrbinggrae5954]

Please discuss mpu6050 later!!