These Bots are Made for Walkin'
summary
Built a hexapod that actually walks and turns using JavaScript control, real-time inverse kinematics and a GUI animator: Johnny 5 plus a homegrown Tharp chain module and animation segment exporter. Eighteen servos require about 540 instructions/sec at 30 fps, Johnny 5’s servo.do2 can push 100 fps (≈1,200 ips), and the system sustains ~50 fps end-to-end. A missing keyframe once sent servos to 180° and would have crushed hardware, so safety checks and the Go Johnny Go editor are essential.
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chapters (12)
- 0:00JavaScript robotics intro
- 2:22Walking robot challenges
- 6:39Johnny 5 animation class
- 10:32Go Johnny Go GUI
- 13:02Live hexapod demo
- 15:29Servo-by-servo limits
- 16:55Vector 3D positioning
- 17:37Tharp inverse kinematics
- 19:033D movement demo
- 21:48JavaScript in embedded future
- 25:03Why JavaScript developers should care about hardware
- 26:50NodeBots community
