EV3 Robotics

ROBOTICSJason Bellj.bell@cqu.edu.au

Brad Carlsonbcarl16@eq.edu.au

EV3 is the third platform Lego® has created for robotics

Platform 2: NXT can still be used but is no longer supported by Lego, however it can still be programmed using the EV3 Mindstorms software

Two parts to all robotics; Construction (what do you want your robot to do) and Programming (how will your robot do it?)

Robotics promotes and/or supportsMathematics - angles

- problem solving-algebra-chance and data

Science - simple machines- force and motion

Digital Technologies – Creative thinking

Inputs4 ports to add sensors (input)-Ultrasonic-Light-Infrared-Touch-Gyroscope

OutputsMotors USB connection

Back/Cancel

Accept/RunUp, down, left and right menu controls

Inputs4 ports to add sensors (input)-Sound-Light-Infrared-Touch

OutputsMotors USB connection

Back/Cancel

Accept/Run

Scroll left Scroll right

Whilst allowing students to create a robot is fun , engaging and interesting, you will get a multitude of designs that may or may not meet the intended purpose. When starting out use a simple design for all students/groups, the activity will have more purpose and run a lot smoother.

For this reason today we are using the basic design you have prebuilt to allow more hands-on time

1. Open LEGO Mindstorms

2. Click the “+” icon to open a project tab

3. Rename your program

Working in the program is simply click, drag and drop. Programming is icon based.Icons are located at the bottom of the program window.Each icon will change once it has been placed to give a number of variables associated with the that icon eg. power, volume, distance.

You can collapse or expand the “Document your work” dialogue box by clicking on the Mindstorms logo next to the pencil.

Connect the robot to the computer via USB cable

Click this button

Wait for confirmation beep Disconnect cable and run program

Click and drag a “Large Motor” icon to the programming pallet, placing it next to the “Play” building piece. The icon will change to look like the one below. The functions for the motor are all shown on the icon with drop down menus.

Output port A/B/C/D

Motor power level

Motor variable

Brake/coast

Motor on for…

Use Trial and Error make your robot turn 180o

Does wheel rotation equal robot rotation?

Program your robot to 1.Travel forwards 5 rotations2.Travel backwards 3 rotations3.Complete a sharp right-hand turn 4.Complete a slow left-hand turn5.Travel forward 3 seconds and then backwards for 2 seconds6.Turn exactly 90o

Pick a sound file to play

File name is displayed in upper right corner

Infrared

Touch

Light

Ultrasonic

Gyroscope

Compass

Unlimited (default)

Time Sensor

“Wait for Time” Allows the robot/program to complete one task before moving to the next or by defining a delayed start time for an action.

Challenge:

Program your robot to greet someone as they walk past

On the floor are a cup-ple (please laugh). Your robot must complete a figure 8 around the cups.

22 July 2016CQUniversity Community

Sports CentreAll Welcome

This year’s goal 250+ participants

damienkee.com https://www.cqu.edu.au/industry-and-partne

rships/partnerships/community/cq-junior-robotics-competition/useful-resources

http://www.ev3lessons.com/ http://www.robocupjunior.org.au/ http://www.robocupjunior.org.au/qld Mailing List:

cqrobojrbounces@mailman.cqu.edu.au