MR 4 Part 2 Rotating US Sensor

I started to build this small robot as a platform to study Simultaneous Localization And Mapping (SLAM)

In this video I mounted a rotating Ultrasonic range finder.

Most implementations I've looked at so far have used a bit array to hold the position of obstacles. In a robot with very limited memory, this is not too efficient as the smaller processors won't have the memory to hold the map. If we instead used a line vector approach, then we can have a high resolution map that doesn't use anywhere near the same amount of RAM to hold a large map. If you look at most GPS system, they hold maps for entire countries in a very small amount of memory. What's more, more info can be stored about the types of objects on the map.

Other things we need to explore are how to get fine resolutions on our sensors when the detection arc is so wide.

All designs I make and links to others used will be in my GitHub on this project: https://github.com/Cyber-One/SLAM The repository will grow as I make more notes and observations with explanations of the maths used.

MR - 4 : Robotic Tank Created by timmiclark on Thingiverse, and is licensed under cc. https://www.thingiverse.com/thing:1906831 Tim Clark is an IT Teacher who is always seeking ways to engage his students

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I have a number of Play-Lists that may also interest you: Spot Micro build using MRL https://youtube.com/playlist?list=PLgXTfFM40HqF6YqVjWtEtDC-ekbIkpkyE Fred's modified Inmoov Robot Head created in the Fred's Head Series. https://www.youtube.com/playlist?list=PLgXTfFM40HqEbnFfhaLPmLv_RS1ZRCilI Fred's Head, a better stand. (This series) https://youtube.com/playlist?list=PLgXTfFM40HqHV5EPKPULJDfbuXK1KUeeS The Inmoov Walking Robot Series. https://youtube.com/playlist?list=PLgXTfFM40HqEMwg9rJ078INRYWDCG66B3 Fred's Static Leg build and attach series, now finished. https://youtube.com/playlist?list=PLgXTfFM40HqHhaHpmX4HQO9xJAz-pAsOm The Creality CR10S5 3D Printer Series. https://youtube.com/playlist?list=PLgXTfFM40HqH2fJ3Wsu2wX90h1_V4uI5n The Cocoon Create Touch 3D Printer Series. https://youtube.com/playlist?list=PLgXTfFM40HqHJlvRuSbhYUvdWBraW9tri My Industrial videos. https://youtube.com/playlist?list=PLgXTfFM40HqFNvDBGjblVrEkl3jrQKMDE And finally some of my unboxing videos. https://youtube.com/playlist?list=PLgXTfFM40HqFXHXRLBa9tsLhRQGcORZQO

See you in the next video :-). ... https://www.youtube.com/watch?v=n9jnkeN-uxM