1. Computer Science Teachers Association Academy Lego Robotics
Wayne Summers – Chair / Rodrigo Obando – Assoc. Chair
TSYS Department of Computer Science
Columbus State University
January 25, 2007

2. WELCOME
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3. AGENDA
Time
Topics
Facilitator
9 – 9:30
Introductions / Overview
Wayne Summers
9:30 – 10:15
Assembly of Robots
Yan Bai , Rodrigo Obando, Shamim Khan
10:30 – 12:15
Programming the Robots
Kicking the Ball
Rodrigo Obando, Shamim Khan
12:15 – 1:15
LUNCH
1:15 – 4:00
Follow a line
Push a brick
Pick an object
Lydia Ray, Yan, Bai, …
4:00 – 4:30
Q&A discussion with faculty and students
Roundtable discussion with faculty and students
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4. Introduction to Robotics
Mindstorms Lego Robot
NXT tutorial:

5. Content Rational-Why Lego Robots Lego Robot Construction
Robotic Programming
Test Your Robot
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6. Rational-Why Lego Robots
MINDSTORMS Education Video
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7. Lego Robot Kits Gears Belts Standard Lego Components Connectors Motors
Sensors
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8. Lego Robot Kits
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9. Robotic Programming
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10. Hardware: Intelligent NXT Brick
32-bit ARM7 microprocessor
256 Kbytes FLASH, 64 Kbytes RAM
Bluetooth wireless communication using NXT software only.
USB 2.0 port
4 input ports, 6 wire digital platform
3 output ports, 6 wire digital platform
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11. Lego Robot Kits (Cont’d)
• Motors are what make your robot move.
• Motors can run forward or backward and at different power levels.
• Motors are connected to the microprocessor with motor cables.
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12. Lego Robot Kits (Cont’d)
• Sensors give your robot information about itself and its environment.
• The touch sensor detects if the robot has run into something.
• The light sensor measures the amount of light in the room.
• The rotational sensor measures how many times the robot’s wheels have turned.
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13. LEGO™ Parts - Beams
Beams are structural components.
• They are named by the number of LEGO™ “bumps” on the top.
• Beams have holes. Axles or pegs can be placed in the holes.
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14. LEGO™ Parts – Plates and Bricks
Plates are flat.
• Plates can have holes.
• Plates and bricks are named by the number of LEGO™ “bumps” on each side.
• Bricks are rectangular pieces.
• Bricks are used for structural support.
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15. LEGO™ Parts – Plates and Bricks
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16. LEGO™ Parts – Axles
Axles are used to attach wheels and gears.
• Axles are named by how long they are in LEGO™ “bumps.” For example, a #8 axle is the same length as a 1 x 8 beam.
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17. LEGO™ Parts – Wheels
• Wheels come in a variety of sizes.
• Large wheels make your robot go fast. Small wheels make your robot go slow.
• There are two types of tires. Tractor tires have a checker-board tread. Regular tires have a wider, race car tread.
• Treads can be used for tank robots.
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18. LEGO™ Parts – Gears
• Gears are wheels with teeth that mesh together.
• Gears are used to change the speed and strength of your robot.
• They are named by the number of teeth they have.
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19. LEGO™ Parts – Bushings and Pegs
• Pegs are used to connect beams together.
• Bushings are used to hold wheels or gears on their axles.
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20. Lego Robot Construction
General Construction
NXT Models & Building Guides -
Robot Driving Base Construction
Wheels Construction
Tracks Construction
Watch a video on Robotics
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21. NXT Navigation Menu
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22. Driving Base http://legoeducation
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23. Motor Module http://legoeducation
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24. Ball Stand – http://legoeducation
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25. LEGO Mindstorms NXT Software (NXT- G)
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26. Robotic Programming (Cont’d)
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27. Robotic Programming (Cont’d)
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28. Test Your Robot Following a line Picking up an object
Pushing the brick
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29. Test Your Robot (Cont’d)
Pushing the brick
Steps:
The robot moves forward until it detects the dark line. (See instructions in Robot Educator >> Home >> Common Palette >> 16. Detect Dark Line >> Programming Guide).
The robot follows the dark line until it comes in a straight line with the brick. (See instructions in Robot Educator >> Home >> Common Palette >> 17. Follow A Line >> Programming Guide). Either fix a distance or fix a time for following the line so that the robot stops as soon as it comes in a straight line with the brick.
The robot takes a 90 degree turn towards the brick. (See instructions in Robot Educator >> Home >> Common Palette >> 08. Drive In Squares >> Programming Guide).
The robot moves forward until it encounters the brick. When it comes to the brick, it pushes the brick to the end of the table. (Calculate the distance the robot will travel to reach the end of the table and stop.)
Fence
Brick
Step 1
Step 2
Step 3
Step 4
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30. RESOURCES Mindstorms http://mindstorms.lego.com/
MINDSTORMS Education NXT -
Kristie Brown
NXT Tutorial (videos)
Microsoft Robotics Studio -
Lejos (Java for the NXT) -
Labview -
NXT Programming Software -
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31. RESOURCES
Learn how to program efficiently with NXT Edu software -
Classroom Management -
Carnegie Mellon Curriculum -
Robotics Academy -
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32. Competitions / Training
First Lego League (9-12 yrs old)
FLL World Festival (Atlanta - April 12-14, 2007)
RoboCup Junior
RoboCup (Atlanta - June 7-July 10, 2007)
RoboCup Junior Workshop 2/10/
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33. Videos
Mindstorms Autofabrik -
Inchworm NXT -
Remote Robotic Dog Treat Dispenser via IM -
FIRST Lego League (FLL) Ocean Odyssey -
First Lego Leagues
Lego Tractor Dance -
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