My Little C Extension: Lego Robots are Magic

on YouTube ↗41m

" summary

Shows how to create a Ruby C extension to control Lego Mindstorms robots, covering basic C-extension building and exposing robot functionality through a Ruby DSL for teaching kids to drive the robots. Demonstrates inspecting and modifying Ruby internals via C to enable the robot control features.

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" chapters (16)

1. 0:00Start
2. 0:19Welcome to the Fringe Ruby track.
3. 3:39Programming
4. 6:24Distraction ROI
5. 14:131. Create a gem
6. 14:28Lay filesystem groundwork
7. 15:21Specify Ruby API
8. 16:04Write first wrapper
9. 17:55Object-oriented C
10. 18:114. Build gem & experiment
11. 19:39Of course!
12. 22:26NAMESPACE ALL THE THINGS!
13. 22:49Prefix C method helpers for easy identification
14. 23:07Putting it together
15. 26:03C Ext Cheat Sheets
16. 26:52Motors spin!

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