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Introduction to LEGO RCX robotics and Robot Sumo

Introduction to LEGO RCX robotics and Robot Sumo. Workshop Day 1 CJ Chung Associate Professor of Computer Science Lawrence Technological University. This program is possible thanks to:. a grant from Detroit Auto Dealers Association (DADA) Charitable Foundation Fund,

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Introduction to LEGO RCX robotics and Robot Sumo

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  1. Introduction to LEGO RCX robotics and Robot Sumo Workshop Day 1 CJ Chung Associate Professor of Computer Science Lawrence Technological University

  2. This program is possible thanks to: • a grant from Detroit Auto Dealers Association (DADA) Charitable Foundation Fund, • which is a fund of the Community Foundation for Southeast Michigan. • For more details, check out a press release at: http://www.ltu.edu/news/detail.asp?ContentId=F43D8217-293D-480E-B657-54392CB1171A

  3. Schedule • First Workshop Day (3 hours) • Second Workshop Day (3 hours) • Third Workshop Day (2 hours) • Meetings with your school staff/teachers to improve your sumoBot (3 hours x 2 meetings suggested) • Official Competition at your school to select one team to advance to the World Robofest Championship on April 26. Guests will be invited.

  4. Workshop First Day (3 hours) • Introduction to Robotics • Introduction to Robofest and Robot Sumo • Introduction to Lego Mindstorms and RCX • Introduction to RCX Code programming using RIS (Robotics Invention System) 2.0 • Basic programs • Motors • Wait

  5. Introduction to Robotics • What is a true robot? • Autonomous robot with an on board computer • Mechanical, electrical, and computational components • Six fundamental components of a robot • A brain or brains – computer • Body: physical chasses that holds other pieces • Actuators: motors, hydraulic pistons, pneumatics • Sensors • Power sources • Communication mechanism

  6. What is Robofest? • 100% Autonomous • Affordable • Challenging: Unknown problem • No direct adult help allowed during the competition • Qualifiers and a World Championship • Various categories including Robot Sumo • Two divisions: • 5th – 9th grade: Jr. Division • 9th – 12th grade: Sr. Division

  7. RoboSumo Push the other robot out of the Sumo ring

  8. Specifications

  9. Why Sumo? • The most popular robot competition in the world • Integrator in Science Education – Math, Logic, Computers, Mechanics, and Physics • Good for rookie teams • Fun Motivator

  10. Unknown Problem in Robofest Sumo • How to start is unknown • Need sensor(s) • Teams must bring a computer to program the unknown parts

  11. Introduction to Lego Mindstorms • Born in USA at MIT • RJ: Roverbot Jr. • Brain – RCX micro computer • Body: Lego pieces • Actuators: up to 3 motors • Sensors: Light, touch, etc. • Power source: 9V (six AA batteries) • Communication mechanism: IR Left motor: A Right motor: C Light sensor on Port No. 1 Touch sensor on Port No. 2

  12. Introduction to RCX Code Programming • RIS (Robotics Invention System) 2.0 • Dag and drop program blocks: Power, Wait, Repeat, Sensors, “Yes or No”, and My Blocks • How to create the first program: • Click on • Create a user account • Watch movie or press “enter” to skip it • Click on “Program”, instead of Missions • Check to skip the tutorials • Click on “Program” again • Click on “Freestyle” – You will see the program canvas!

  13. First Program: Go forward for 2 seconds and stop =

  14. Very Important!!!!! • “Cover your robot and IR tower when you download programs” • Save your programs • File Names should be meaningful • Use logbook and comment

  15. Power Commands • On • On For: On + Wait + Off • Off • Coast • Brake • Set Power: Min 1 ~ Max 8 • Set Direction: • Reverse Direction: Not recommended to use. Use Set Direction instead.

  16. ForwardBack • Go Forward for 2 seconds, • Wait 3 seconds then • Backward for 2 seconds

  17. ForwardBack

  18. Making Turns • Turn left • Spin left • Face left stop Left wheel Right wheel Left wheel Right wheel stop Left wheel Right wheel

  19. Turn 90 left • Go forward for 2 seconds, • Turn Left 90 degrees, and • Go forward for 2 seconds

  20. Turn 90 left ?

  21. Spin 720 right • Go forward for a second, • Spin right two times (720 degrees), • Go forward for a second 90o 720o

  22. Spin 720 Right ?

  23. Class Mission • A simple maze • Introduction to loops box box

  24. Additional Mission, if time available • Introduction to loops: Making 100 beep sounds

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