August 2010
Intermediate to advanced
288 pages
13h 21m
English
Content preview from The Art of LEGO MINDSTORMS NXT-G ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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improving the control algorithm
The part of a line-follower program that adjusts the steering based on the Light Sensor reading is called a control algorithm. Improving the control algorithm will allow the TriBot to move faster and follow lines with tighter turns.
The control algorithm you’ve been using so far is called a three-state controller, because the program will do one of three things based on the light sensor reading: go straight, turn left, or turn right. This approach works as long as the TriBot moves slowly and the line doesn’t curve too quickly. The main problem with this method is that when the robot needs to turn, it always turns the same amount, because the Steering values for the Move blocks are hard-coded. If the robot encounters ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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