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Here's next week's video, early for Patrons. This video goes out on Tuesday 12th. 

Looks like the mapping works ok at least, I've just discovered that the ROS node for the Intel Realsense camera actually appears to publish an Odom topic with what looks like the right data in, so it may be possible to get Navigation to work without too much more trouble - I'll be trying that next time all being well.

The eventual aim is to make a unit that I can drop onto any robot to make it map and navigate - even if it doesn't have wheels to get wheel odometry data from.

Files

Previews only

Mapping with no Wheel Odometry using Intel Realsense T265 Camera

I bought an Intel Realsense T265 Tracking Camera to attempt to get openDog V2 to map its environment despite having no wheels to get wheel odometry from. This could also be useful in other robots such as drones. The camera ships with a ROS package which produces TF data. I combined that with an RPLIDAR A1 scanning laser range finder and used ROS Gmapping which seems to work well. #RobotDog #DogRobot You can support me on Patreon or buy my Merchandise: *************************** Patreon: https://www.patreon.com/xrobots Merchandise: https://teespring.com/stores/james-bruton *************************** Affiliate links - I will get some money of you use them to sign up or buy something: *************************** Matterhackers 3D printing supplies: http://www.matterhackers.com?aff=7500 Music for your YouTube videos: http://share.epidemicsound.com/xrobots *************************** Other socials: *************************** Instagram: https://www.instagram.com/xrobotsuk Facebook: https://www.facebook.com/xrobotsuk/ Twitter: https://twitter.com/xrobotsuk *************************** CAD and Code for my projects: https://github.com/XRobots Huge thanks to my Patrons, without whom my standard of living would drastically decline. Like, inside out-Farm Foods bag decline. Plus a very special shoutout to Lulzbot, Inc who keep me in LulzBot 3D printers and support me via Patreon. HARDWARE/SOFTWARE Below you can also find a lot of the typical tools, equipment and supplies used in my projects: Filament from: https://www.3dfuel.com/ Lulzbot 3D Printers: http://bit.ly/2Sj6nil Lincoln Electric Welder: https://bit.ly/2Rqhqos CNC Router: https://bit.ly/2QdsNjt Ryobi Tools: http://bit.ly/2RhArcD Axminster Micro Lathe: http://bit.ly/2Sj6eeN 3D Printer Filament: http://bit.ly/2PdcdUu Soldering Iron: http://bit.ly/2DrNWDR Vectric CNC Software: http://bit.ly/2zxpZqv Why not join my community, who are mostly made up of actual geniuses. There’s a Facebook group and everything: https://www.facebook.com/groups/287089964833488/ XROBOTS Former toy designer, current YouTube maker and general robotics, electrical and mechanical engineer, I’m a fan of doing it yourself and innovation by trial and error. My channel is where I share some of my useful and not-so-useful inventions, designs and maker advice. Iron Man is my go-to cosplay, and 3D printing can solve most issues - broken bolts, missing parts, world hunger, you name it. XRobots is the community around my content where you can get in touch, share tips and advice, and more build FAQs, schematics and designs are also available.

Comments

Anonymous

This will be awesome if we build a generic tracking and mapping module as mountable any device.

XRobots

Yep that's the plan, it will always be better with wheel odometry plus other sensors, unless it doesn't have wheels!

XRobots

I'm pretty sure that the camera is using everything it has including the internal IMU to get the TF/Odom message, that would make sense anyway. I found rf2o_laser_odometry for getting laser Odometry but it looks like it's only supported under Indigo.

Anonymous

Very cool! I've recently been playing with the T265 and D435 combo as a stand alone mobile scanning platform. The T265 has a lot of potential, but has a some major quirks. Let me warn you about using the T265 with raspberry pi 4. I spent a week going down various rabbit holes trying to get it to work for more than a few minutes at a time. In the end I had to have a raspberry pi 4 running the D435 and a separate raspberry pi 3 running the T265 (even though a single raspberry pi 4 would work fine if they fixed all of the SDK bugs). Unfortunately Intel has moved onto their next gen tracking camera (?) and are no longer supporting the T265 : https://github.com/IntelRealSense/librealsense/issues/6362

XRobots

Thanks, yes I had lot of problems getting the Python Librealsense2 stuff to install on Jetson, but it (probably) works now. I'm pretty happy with the ROS wrapper though.

Scott Cress

I feel like this is the episode a lot of people have been waiting for. I'm super excited for what's next!

Anonymous

I plan to add a robosense LIDAR on the OpenDog V2 I'm building !! I've been waiting to this video ;)