How to use Lidars in Webots? // Webots Lidar Code in Python Tutorial

[@Mrsayedin]

Hi Kajal, Thank you for the video. What if there are two controllers and how to get the lidar reading from both in the console. Thank you.

[@MUHAMMADNIYASPNME]

Truly helpfull. Thank you.

[@KajalGada]

Glad it was helpful! :)

[@dc8672]

Thank you Kajal! Do you have a tutorial on how to use camera in webots with the controller code in python?

[@ngwakomakudubela8189]

This was helpful. Thanks. Patiently waiting waiting for the code in C though🙂

[@lesegokeogatile5735]

hahahah I know a MECN3012 student when I see one. Let's have our discussion here since we are waiting for C code. did you manage to execute a 'for' loop successfully? that is where I am stuck.

[@KajalGada]

I created a video on how to use lidar with the code in C. It is going live tomorrow. Here is a link: kzbin.info/www/bejne/pJqYf4ulhpdgbLM

[@KajalGada]

I can understand that, it is tricky cause of the use of pointers. Took me a few tries to figure out as well.

[@ngwakomakudubela8189]

@@KajalGada Thank you very much.

[@ngwakomakudubela8189]

@@lesegokeogatile5735 I was also stuck on that. :-(

[@yerkopoblete877]

Thank you Kajal! How can I do to rotate a robot to an specific point and then move to it?

[@karolinakubenova4444]

Hi Kajal, how did you set look up tables? No matter what i try it always returns value from look up table, so it doesn't react to different colors.

[@KajalGada]

Lookup table is a bit confusing in Webots. Think of it as a graph so make sure you have various range options in your look up table. Also lidar gives distance readings and is mostly indifferent to colors. If you want to detect different colors, try IR sensors. I talk about IR sensors here - kzbin.info/www/bejne/emHNmal8j69ohc0 Additional resource is webots discord channel.

[@will-le3kl]

thanks for your video, can lidar show like rgb camera?

[@KajalGada]

to the best of my knowledge no such setting exists. Fundamentally, they both work differently.