PowerPoint Presentation - C3I Systems 2 - Lecture 1

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Graphical Programming Languages Lecture 19
Supporting Material Dr Kathryn Merrick Thursday
21st May, 2009
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(No Transcript)
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Overview

• Graphical programming languages
• Variables, types, values, operators
• Flow of control
• Built-in functions
• Strengths and limitations

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Lego Mindstorms NXT Programmable Robots
Programmable Brick
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The NXT Programming Environment
The programming window
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Built-in Functions
Move functions connected up like Lego bricks
Input parameters set here
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Loops
Instructions to be repeated will be dragged into
here
Loop connected up like a Lego brick
Exit condition (can behave like a for loop or a
while loop)
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Selection
What to do will be dragged into here
Selection connected up like a Lego brick
Conditions set here
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A Complete Program
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Demo 1 Programming a Lego scorpion
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Variables
Variable brick
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Maths Operators
Maths operator brick
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Boolean Operators
Boolean operator brick
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Complete Program
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Demo 2 Programming a Lego scorpion
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Summary

• After todays lecture you should be able to
• Identify the key programming tools we used in
  MATLAB in the NXT graphical language
• Appreciate the strengths and weaknesses of
  graphical languages