LEGO Systems 95646 Mindstorms EV3 User Manual LME UserGuide ViewAll US 20130507

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Date Submitted	2013-09-26 00:00:00
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Document Author:	LEGO® Education

USER
GUIDE
COMPUTER SCIENCE SCIENCE TECHNOLOGY ENGINEERING MATH
LEGOeducation.com/MINDSTORMS
TABLE OF CONTENTS
INTRODUCTION
+ Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EV3 TECHNOLOGY
+ Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ EV3 Brick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning On the EV3 Brick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
+ EV3 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Large Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Medium Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
11
11
+ EV3 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Color Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gyro Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Touch Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ultrasonic Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Infrared Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Infrared Beacon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
12
13
14
15
16
16
18
+ Connecting the EV3 Technology . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Sensors and Motors . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the EV3 Brick to Your Computer . . . . . . . . . . . . . . .
19
19
20
+ EV3 Brick Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Run Recent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
File Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brick Apps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
25
25
26
32
EV3 SOFTWARE
+ Minimum System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Lobby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Project Properties and Structure . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Robot Educator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Hardware Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Content Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36
36
37
38
40
41
44
46
48
49
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TROUBLESHOOTING
+ EV3 Software Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Software Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Resetting the EV3 Brick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
51
51
52
53
USEFUL INFORMATION
+ Sound File List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Image File List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Brick Program App—Assets List . . . . . . . . . . . . . . . . . . . . . . . . . . .
+ Element List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54
59
63
64
LEGO, the LEGO logo, MINDSTORMS and the MINDSTORMS logo are trademarks of the/
sont des marques de commerce de/son marcas registradas de LEGO Group. ©2013 The LEGO Group. 041329.
INTRODUCTION
Welcome
LEARNING POWERED BY LEGO® MINDSTORMS® EDUCATION
Since the beginning of this century, LEGO® MINDSTORMS® Education
has led the way in STEM (Science, Technology, Engineering, and Math)
Education, inspiring users to engage in fun, hands-on learning. The
combination of LEGO building systems with the LEGO MINDSTORMS
Education EV3 technology is now offering even more ways to learn
about robotics and teach the principles of programming, physical
science, and mathematics.
The heart of LEGO MINDSTORMS Education is the EV3 Brick, the
programmable intelligent brick that controls motors and sensors,
as well as providing wireless communication. Choose what motors
and sensors you wish to use and build your robot just like you want
it to be.
Enter the LEGO MINDSTORMS Education EV3 Software to find
everything you need. The EV3 Software Lobby gives you easy
access to content, programming, data logging, digital workbooks
and more. You can for example choose to follow the Robot Educator
and you’ll be able to create, program, and run a robot before you
know it. The intuitive icon-based programming is full of challenging
possibilities and the data logging environment provides a powerful
tool for scientific inquiry and experiments.
LEGO Education offers a growing number of EV3-based curriculum
packages developed by experienced educators. We are committed
to responsive customer support, professional development, and
continuing education for teachers using MINDSTORMS robotics in
their classrooms.
Want to work like real scientists and engineers? Enter the LEGO
Education-supported FIRST® LEGO League and World Robot
Olympiad—and gain invaluable knowledge, life skills, and increased
self-confidence!
We hope you enjoy the journey!
LEGOeducation.com
LEGO, the LEGO logo, MINDSTORMS and the MINDSTORMS logo are trademarks of the/
sont des marques de commerce de/son marcas registradas de LEGO Group. ©2013 The LEGO Group. 041329.
EV3 TECHNOLOGY
Overview
Large Motor
+ Lets you program precise and
powerful robotic action.
Medium Motor
+ Maintains precision, while
trading some power for
compact size and faster
response.
EV3 Brick
+ Serves as the control center
and power station for your
robot.
Ultrasonic Sensor
+ Uses reflected sound
waves to measure
distance between
the sensor and any
objects in its path.
Color Sensor
+ Recognizes seven different
colors and measures light
intensity.
Gyro Sensor
+ Measures how fast and how far
your robot is turning.
Rechargeable Battery
+ Economical, environmentally
friendly, and convenient power
source for your robot.
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Touch Sensor
+ Recognizes three
conditions—touched,
bumped, and released.
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sont des marques de commerce de/son marcas registradas de LEGO Group. ©2013 The LEGO Group. 041329.
EV3 TECHNOLOGY
EV3 Brick
Overview
The Display shows you what is going on inside the EV3 Brick and
enables you to use the Brick Interface. It also allows you to add
text and numerical or graphic responses into your programming or
experiments. For example, you might want to program the Display
to show a happy face (or a sad face) for a comparison response or
to display a number that is the result of a mathematical calculation
(learn more about using the Display Block in the EV3 Software Help).
The Brick Buttons allow you to navigate inside the EV3 Brick
Interface. They can also be used as programmable activators. For
example, you might program a robot to raise its arms if the Up button
is pressed or to lower them if the Down button is pressed (for more
information, see Using the Brick Buttons in the EV3 Software Help).
Brick Name
USB connection established
to another device
Wireless Connection Status icons
(from the left)
Bluetooth enabled but not
connected or visible to other
Bluetooth devices
Bluetooth enabled and visible
to other Bluetooth devices
Battery level
Bluetooth enabled and your
EV3 Brick is connected to
another Bluetooth device
Brick Buttons
1. Back
This button is used to reverse
actions, to abort a running
program, and to shut down
the EV3 Brick.
Bluetooth enabled and visible
and your EV3 Brick is connected
to another Bluetooth device
Wi-Fi enabled but not connected
to a network
Wi-Fi enabled and connected
to a network
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2. Center
Pressing the Center button says
“OK” to various questions—to shut
down, to select desired settings,
or to select blocks in the Brick
Program App. You would, for
example, press this button to
select a checkbox.
3. Left, Right, Up, Down
These four buttons are used to
navigate through the contents of
the EV3 Brick.
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sont des marques de commerce de/son marcas registradas de LEGO Group. ©2013 The LEGO Group. 041329.
EV3 TECHNOLOGY
TECHNICAL
SPECIFICATIONS
FOR THE EV3 BRICK
EV3 Brick
The Brick Status Light that surrounds the Brick Buttons tells you
the current status of the EV3 Brick. It can be green, orange, or red
and can pulse. Brick Status Light codes are the following:
Red = Startup, Updating, Shutdown
Red pulsing = Busy
Orange = Alert, Ready
Orange pulsing = Alert, Running
Green = Ready
Green pulsing = Running Program
+ Operating System—LINUX
+ 300 MHz ARM9 controller
+ Flash Memory—16 MB
+ RAM—64 MB
+ Brick Screen Resolution—178 x128/Black & White
+ USB 2.0 Communication to Host PC—Up to 480 Mbit/sec
+ USB 1.1 Host communication—Up to 12 Mbit/sec
+ Micro SD card—Supports SDHC,
Version 2.0, Max 32 GB
+ Motor and Sensor Ports
+ Connectors—RJ12
+ Support Auto ID
+ Power—6 AA batteries/
rechargeable
You can also program the Brick Status Light to show different colors
and to pulse when different conditions are met (learn more about
using the Brick Status Light Block in the EV3 Software Help).
Brick Status Light – Red
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Brick Status Light – Orange
Brick Status Light – Green
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EV3 TECHNOLOGY
EV3 Brick
PC Port
The Mini-USB PC Port, located
next to the D port, is used
to connect the EV3 Brick to
a computer.
Output Ports
Output Ports A, B, C, and D
are used to connect motors to
the EV3 Brick.
Input Ports
Input Ports 1, 2, 3, and 4 are
used to connect sensors to
the EV3 Brick.
Speaker
All sounds from the EV3 Brick
come through this speaker—
including any sound effects used
in programming your robots.
When the quality of the sound
is important to you, try to leave
the speaker uncovered while
designing your robot.
Check out the cool sound files
that can be programmed within
the EV3 Software (learn more
about using the Sound Block in
the EV3 Software Help).
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USB Host Port
The USB Host Port can be used
to add a USB Wi-Fi dongle for
connecting to a wireless network,
or to connect up to four EV3
Bricks together (daisy chain).
SD Card Port
The SD Card Port increases
the available memory for your EV3
Brick with an SD card (maximum
32 GB—not included).
LEGO, the LEGO logo, MINDSTORMS and the MINDSTORMS logo are trademarks of the/
sont des marques de commerce de/son marcas registradas de LEGO Group. ©2013 The LEGO Group. 041329.
EV3 TECHNOLOGY
EV3 Brick
Installing Batteries
With LEGO® MINDSTORMS® Education EV3, you have the choice of
using normal AA batteries or the EV3 Rechargeable Battery pack
included in the LEGO MINDSTORMS Education EV3 Core Set.
If you experiment with both, you will find that each option has
characteristics to consider when constructing your robots. For
instance, six AA batteries weigh more than the Rechargeable Battery,
and the EV3 Brick with the Rechargeable Battery installed is slightly
larger than the EV3 Brick with six AA batteries.
The EV3 Rechargeable Battery is a convenient and economical
alternative to using AA batteries. It can be recharged while inbuilt in
a model, saving you the trouble of disassembling and reassembling
a robot to replace batteries.
To install the Rechargeable Battery on the EV3 Brick, remove
the battery cover on the back of the EV3 Brick by pressing the two
plastic tabs on the side. If there are batteries in the EV3 Brick,
remove them. Insert the Rechargeable Battery in the slots that held
the battery cover in place and snap the battery in place. The battery
cover is not used.
EV3 Rechargeable Battery
If it is your first use of the battery—or if the battery is completely
drained, let the battery and the EV3 Brick charge together for
minimum twenty minutes.
Using the enclosed power adaptor cord, connect the Rechargeable
Battery to a wall outlet. Make sure to keep the transformer cord and
battery where they will not be tripped over or get wet.
7.4V Rechargeable
When you plug the uncharged battery into a wall socket, a red
indicator light will be lit. When charging is complete, the red light
will go out and the green light will be illuminated. The recharging
process will generally take three to four hours. If you use the EV3
Brick while the battery is charging, it will take longer. Before you start
to use the Rechargeable Battery for the first time, it is recommended
that it is fully charged.
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EV3 TECHNOLOGY
EV3 Brick
The EV3 Brick requires six AA/LR6 batteries if the EV3 Rechargeable
Battery is not used. Alkaline or rechargeable Lithium Ion AA batteries
are recommended. The AA batteries option is a good choice when
a little more weight is desirable in your robot.
To install the AA batteries, remove the battery cover on the back of
the EV3 Brick by pressing the two plastic tabs on the side. After you
have inserted the six AA batteries, attach the battery cover again.
AA, 1.5V x 6
SOME IMPORTANT INFORMATION ABOUT BATTERIES:
+ Never use different kinds of batteries together
(including mixing old and new).
+ Remove batteries from the EV3 Brick when not in use.
+ Never use damaged batteries.
+ Use the correct battery charger under the supervision of
an adult.
+ Never attempt to recharge batteries that are not rechargeable.
Note: If your batteries are weak, the Brick Status Light may stay red
after you press the Start button, while the Display continues to say
“Starting.”
POWER-SAVING PRACTICES
+ Remove batteries between use.
Remember to keep each set of batteries in its own storage
container so they can be used together.
+ Reduce Volume.
+ Adjust Sleep Setting.
+ Turn off Bluetooth and Wi-Fi when not in use.
+ Avoid unnecessary wear on the motors.
Low Battery Power Indicator
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EV3 TECHNOLOGY
EV3 Brick
Turning On the EV3 Brick
To turn on the EV3 Brick, press the Center button. After you press the
button, the Brick Status Light will turn red and the Starting screen
will be displayed.
When the light changes to green, your EV3 Brick is ready.
To turn the EV3 Brick off, press the Back button until you see the Shut
Down screen.
The Abort X will already be selected. Use the Right button to select
the Accept check mark, then press the Center button for OK. Your
EV3 Brick is now turned off. If you press OK while the X is selected,
you will return to the Run Recent screen.
Starting screen
Shut Down screen
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10
EV3 TECHNOLOGY
EV3 Motors
Large Motor
The Large Motor is a powerful “smart” motor. It has a built-in Rotation
Sensor with 1-degree resolution for precise control. The Large Motor
is optimized to be the driving base on your robots.
By using the Move Steering or Move Tank programming block
in the EV3 Software, the Large Motors will coordinate the action
simultaneously.
Large Motor
Medium Motor
The Medium Motor also includes a built-in Rotation Sensor (with
1-degree resolution), but it is smaller and lighter than the Large
Motor. That means it is able to respond more quickly than the Large
Motor.
The Medium Motor can be programmed to turn on or off, control its
power level, or to run for a specified amount of time or rotations.
COMPARE THE TWO MOTORS:
+ The Large Motor runs at 160–170 rpm, with a running torque of
20 Ncm and a stall torque of 40 Ncm (slower, but stronger).
Medium Motor
+ The Medium Motor runs at 240–250 rpm, with a running torque
of 8 Ncm and a stall torque of 12 Ncm (faster, but less powerful).
+ Both motors are Auto ID supported.
For more information on using the Rotation Sensor in your
programming, see Using the Motor Rotation Sensor in the EV3
Software Help.
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11
EV3 TECHNOLOGY
EV3 Sensors
Color Sensor
Color Sensor
The Color Sensor is a digital sensor that can detect the color
or intensity of light that enters the small window on the face of
the sensor. This sensor can be used in three different modes: Color
Mode, Reflected Light Intensity Mode, and Ambient Light Intensity
Mode.
In Color Mode, the Color Sensor recognizes seven colors—black,
blue, green, yellow, red, white, and brown—plus No Color. This
ability to differentiate between colors means your robot might be
programmed to sort colored balls or blocks, speak the names of
colors as they are detected, or stop action when it sees red.
In Reflected Light Intensity Mode, the Color Sensor measures
the intensity of light reflected back from a red light–emitting lamp.
The sensor uses a scale of 0 (very dark) to 100 (very light). This
means your robot might be programmed to move around on a white
surface until a black line is detected, or to interpret a color-coded
identification card.
Color Mode
In Ambient Light Intensity Mode, the Color Sensor measures
the strength of light that enters the window from its environment,
such as sunlight or the beam of a flashlight. The sensor uses a scale
of 0 (very dark) to 100 (very light). This means your robot might be
programmed to set off an alarm when the sun rises in the morning,
or stop action if the lights go out.
The sample rate of the Color Sensor is 1 kHz/sec.
For the best accuracy, when in Color Mode or Reflected Light
Intensity Mode, the sensor must be held at a right angle, close
to—but not touching—the surface it is examining.
Reflected Light Intensity Mode
For more information, see Using the Color Sensor in the EV3
Software Help.
Ambient Light Intensity Mode
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12
EV3 TECHNOLOGY
EV3 Sensors
Gyro Sensor
Gyro Sensor
The Gyro Sensor is a digital sensor that detects rotational motion
on a single axis. If you rotate the Gyro Sensor in the direction
of the arrows on the case of the sensor, the sensor can detect
the rate of rotation in degrees per second. (The sensor can measure
a maximum rate of spin of 440 degrees per second.) You can then
use the rotation rate to detect, for example, when a part of your
robot is turning, or when your robot is falling over.
In addition, the Gyro Sensor keeps track of the total rotation angle
in degrees. You can use this rotation angle to detect, for example,
how far your robot has turned. This feature means you are able to
program turns (on the axis the Gyro Sensor is measuring) with an
accuracy of +/- 3 degrees for a 90-degree turn.
Note: The sensor must be completely motionless while being plugged
into the EV3 Brick. If the Gyro Sensor is attached to a robot, the robot
should be held motionless in its starting position as the Gyro Sensor
is plugged into the EV3 Brick.
90...º
-90...º
Single axis rotation
CONNECTING THE GYRO SENSOR
On the EV3 Brick, go to the Brick App screen (third tab) and use
the Center button to select Port View.
Using a flat black Connector Cable, connect the Gyro Sensor to
the EV3 Brick on Port 2. Make sure to hold the sensor very still while
you do this. On the EV3 Brick display, the Port View app should show
a “0” reading in the second small bottom window from the left, which
is the window representing input values from Port 2.
Still without moving the sensor, observe the display for a few
seconds. It should continue to display “0” for Port 2 with the Gyro
Sensor. In case the Gyro Sensor readings do not constantly display
“0” during the connection process, unplug the sensor and repeat
the procedure.
Brick App screen
When the screen consistently displays “0” for a few seconds,
experiment with rotating the sensor and observe how the angle
reading changes. Remember, the Gyro Sensor measures the angle
of change on only one axis.
For more information, see Using the Gyro Sensor in the EV3 Software
Help.
Port View with Gyro Sensor
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EV3 TECHNOLOGY
EV3 Sensors
Touch Sensor
Touch Sensor
The Touch Sensor is an analog sensor that can detect when
the sensor’s red button has been pressed and when it is released.
That means the Touch Sensor can be programmed to action using
three conditions—pressed, released, or bumped (both pressed and
released).
Using input from the Touch Sensor, a robot can be programmed
to see the world as a blind person might, reaching a hand out and
responding when it touches something (pressed).
You might build a robot with a Touch Sensor pressed against
the surface beneath it. You might then program the robot to respond
(Stop!) when your robot is about to drive off the edge of a table (when
the sensor is released).
A fighting robot might be programmed to keep pushing forward
against its challenger until the challenger retreats. That pair of
actions—pressed, then released—would constitute bumped.
Pressed
For more information, see Using the Touch Sensor in the EV3
Software Help.
Released
Bumped
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14
EV3 TECHNOLOGY
EV3 Sensors
Ultrasonic Sensor
Ultrasonic Sensor
The Ultrasonic Sensor is a digital sensor that can measure
the distance to an object in front of it. It does this by sending out
high-frequency sound waves and measuring how long it takes
the sound to reflect back to the sensor. The sound frequency is too
high for you to hear.
250250cm
cm // 99inch
99inch
Distance to an object can be measured in either inches or
centimeters. This allows you to program your robot to stop a certain
distance from a wall.
When using centimeter units, the detectable distance is between 3
and 250 centimeters (with an accuracy of +/- 1 centimeters). When
using inch units, the measurable distance is between 1 and 99 inches
(with an accuracy of +/- 0.394 inches). A value of 255 centimeters
or 100 inches means the sensor is not able to detect any object in
front of it.
Detectable distance
A steady light around the sensor eyes tells you that the sensor is in
Measure Mode. A blinking light tells you that it is in Presence Mode.
In Presence Mode, this sensor can detect another Ultrasonic Sensor
operating nearby. When listening for presence, the sensor detects
sound signals but does not send them.
The Ultrasonic Sensor can help your robots avoid furniture,
track a moving target, detect an intruder in your room, or “ping”
with increasing volume or frequency as an object gets closer to
the sensor.
For more information, see Using the Ultrasonic Sensor in the EV3
Software Help.
NOTE:
Since the Ultrasonic
Sensor depends on reflection
of the sound waves it may be ineffective at detecting surfaces that
are textured or objects that are
rounded. It is also possible for
an object to be too small for
the Ultrasonic Sensor
to detect it.
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15
EV3 TECHNOLOGY
EV3 Sensors
Infrared Sensor and Remote Infrared Beacon
Infrared Sensor
The Infrared Sensor is a digital sensor that can detect infrared light
reflected from solid objects. It can also detect infrared light signals
sent from the Remote Infrared Beacon.
The Infrared Sensor can be used in three different modes: Proximity
Mode, Beacon Mode, and Remote Mode.
27inch
70 70cm
cm // 27
inch
PROXIMITY MODE
In Proximity Mode, the Infrared Sensor uses the light waves reflected
back from an object to estimate the distance between the sensor
and that object. It reports the distance using values between 0 (very
close) to 100 (far away), not as a specific number of centimeters or
inches. The sensor can detect objects up to 70 cm away, depending
on the size and shape of the object.
For more information, see Using the Infrared Sensor Proximity Mode
in the EV3 Help files.
Proximity Mode
200200cm
cm // 79inch
79 inch
BEACON MODE
Choose one of the Remote Infrared Beacon’s four channels from
the red Channel Selector. The Infrared Sensor will detect a beacon
signal matching the channel that you specify in your program up
to a distance of approximately 200 cm in the direction it is facing.
Once detected, the sensor can estimate the general direction
(heading) of and the distance (proximity) to the beacon. With this
information, you can program a robot to play hide-and-seek, using
the Remote Infrared Beacon as the target of its search. The heading
will be a value of between -25 and 25, with 0 indicating that
the beacon is directly in front of the Infrared Sensor. The proximity
will be values between 0 and 100.
Beacon Mode
For more information, see Using the Infrared Sensor Beacon Mode
in the EV3 Help files.
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EV3 TECHNOLOGY
EV3 Sensors
The Remote Infrared Beacon is a separate device that can be
handheld or built into another LEGO® model. It requires two AAA
alkaline batteries. To turn the Remote Infrared Beacon on, press
the big Beacon Mode button on the top of the device. A green LED
Indicator will turn on, indicating the device is active and transmitting
continuously. Another press on the Beacon Mode button will turn
it off (after one hour of inactivity, the beacon will automatically turn
itself off).
Remote Infrared
Beacon
REMOTE MODE
You can also use the Remote Infrared Beacon as a remote control
for your robot. When in Remote Mode, the Infrared Sensor can detect
which button (or combination of buttons) on the beacon is pressed.
There are a total of eleven possible button combinations:
10
11
No button (and Beacon Mode is off)
Button 1
Button 2
Button 3
Button 4
Both Button 1 and Button 3
Both Button 1 and Button 4
Both Button 2 and Button 3
Both Button 2 and Button 4
Beacon Mode is on
Both Button 1 and Button 2
Both Button 3 and Button 4
Remote Mode
For more information, see Using the Infrared Sensor Remote Mode
in the EV3 Help files.
NOTE:
The Infrared Sensor and
Remote Infrared Beacon are not
part of the LEGO® MINDSTORMS®
Education EV3 Core Set
but can be acquired as
accessories.
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17
EV3 TECHNOLOGY
EV3 Sensors
Temperature Sensor
Temperature
Sensor
The Temperature Sensor is a digital sensor that
measures the temperature at the tip of its metal
probe. The sensor measures in Celsius (-20°C to 120°C)
and Fahrenheit (-4°F to 248°F) with an accuracy of 0.1°C.
The Temperature Sensor is most commonly used to collect data for
heat-related data logging projects. With a 50 cm–long Connector
Cable and a 6.4 cm metal probe, the sensor makes it easy to
measure hot liquids away from the EV3 Brick and other electronics.
For more information, see Using the Temperature Sensor in the EV3
Software Help.
NOTE:
The Temperature
Sensor is not part of
the LEGO® MINDSTORMS®
Education EV3 Core Set
but can be acquired
as accessory.
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18
EV3 TECHNOLOGY
Connecting the EV3 Technology
Connecting Sensors and Motors
In order to function, motors and sensors must be connected to
the EV3 Brick.
Using the flat black Connector Cables, link sensors to the EV3 Brick
using Input ports 1, 2, 3, and 4.
If you create programs while the EV3 Brick is not connected to your
computer, the software will assign sensors to default ports. Those
default port assignments are:
Port 1: Touch Sensor
Port 2: Gyro Sensor/Temperature Sensor
Port 3: Color Sensor
Port 4: Ultrasonic Sensor/Infrared Sensor
Connecting Sensors
If the EV3 Brick is connected to your computer while you program,
the software will automatically identify which port is being used for
each sensor or motor.
Using the flat black Connector Cables, link motors to the EV3 Brick
using Output ports A, B, C, and D.
As with the sensors, if the EV3 Brick is not connected when you are
writing a program, each motor will be assigned to a default port.
Default port assignments are:
Connecting Motors
+ Port A: Medium Motor
+ Port B & C: Two Large Motors
+ Port D: Large Motor
If the EV3 Brick is connected to the computer when you are
programming, the software will automatically assign the correct
port in your programs.
NOTE:
The software
cannot distinguish
between two or more
identical sensors
or motors.
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EV3 TECHNOLOGY
Connecting the EV3 Technology
Connecting the EV3 Brick to Your Computer
Connect the EV3 Brick to your computer by USB Cable or wirelessly
using either Bluetooth or Wi-Fi.
USB CABLE
Using the USB Cable, plug the Mini-USB end into the EV3 Brick’s PC
port (located next to Port D). Plug the USB end into your computer.
USB Cable connection
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EV3 TECHNOLOGY
Connecting the EV3 Technology
WIRELESS—BLUETOOTH
If your computer is not Bluetooth-enabled, you will need a Bluetooth
USB dongle for your computer.
Making a Bluetooth connection to the computer
Before you can make a Bluetooth connection between the EV3
Brick and the computer running the EV3 Software, you will need to
enable Bluetooth on the EV3 Brick. Directions for this can be found
on page 33.
Once you have enabled Bluetooth on the EV3 Brick, it can now be
connected to the computer and EV3 Software.
Wireless connection
1. First, confirm that the EV3 Brick is turned on.
2. Open a new or existing program in the EV3 Software
(see the EV3 Software chapter on page 37 for directions on
how to do this).
3. Go to the Hardware Page at the lower right of the screen—
expand the window if collapsed (learn more about
the Hardware Page on page 46).
4. Click on the Available Bricks tab. If your EV3 Brick is not
already listed, click the Refresh button to locate the EV3 Brick
and check the Bluetooth box that will appear.
5. Accept the connection on your EV3 Brick manually, then enter
the passkey and press the Center button for OK. The default is
1234. Repeat this in the EV3 Software.
6. The connection is now established and a “<>” symbol is shown
on the top left of the EV3 Brick Display (next to the Bluetooth
icon) to confirm the connection.
To disconnect the EV3 Brick from the computer, click on
the Disconnect button next to the Refresh button in the Hardware
Page.
More information about Bluetooth settings on the EV3 Brick can be
found on page 33.
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21
EV3 TECHNOLOGY
Connecting the EV3 Technology
WIRELESS—WI-FI
Your first step in connecting to Wi-Fi is to acquire a Wi-Fi USB dongle.
For a list of compatible dongles, ask your local LEGO® Education
provider or go to the official LEGO® MINDSTORMS® Education
website (www.LEGOeducation.com/MINDSTORMS).
To begin the setup, you must have access to a wireless network,
and know the network’s name and its password.
If the EV3 Software is open, close it and insert your Wi-Fi dongle
into the EV3 Brick using the USB Host port.
Settings screen
Before you can connect the EV3 Brick to a network, you will need
to enable Wi-Fi on the EV3 Brick. Directions for this can be found
on page 35.
NOTE:
NOTE:
The EV3 Brick only
supports the following
network encryption
modes: None and
WPA2.
LEGOeducation.com
Because of keyboard
limitations, the password for
the network must be made up of
numbers, capital letters, and lowercase
letters. You will not be able to
use some symbols, such as
the # sign, or letters and
symbols from non-Latin
alphabets.
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22
EV3 TECHNOLOGY
Connecting the EV3 Technology
Connecting the EV3 Brick to a network
After selecting Wi-Fi on the Settings screen, use the Up and Down
buttons to select Connections and press the Center button for OK.
The EV3 Brick will now search for and list available Wi-Fi networks.
Using the Up and Down buttons for navigation, find your network on
the list. If the EV3 Brick is not already connected to your network
(indicated by a check mark), select your network using the Center
button.
In the Network dialog box that appears, select Connect and press OK
with the Center button. You will now be asked to enter the encryption
type and the network password using the Left, Right, Up, and Down
buttons to navigate (upper and lower cases do matter here).
Network list
Connect to network
Network password
Add hidden network
Once you have entered the correct password, press the check mark
for OK. You will now be connected to the network.
If the EV3 Brick does not find your network in its search, the network
may be hidden. To connect to a hidden network, select “Add hidden.”
You will then be asked to enter the name, encryption type, and
password for the hidden network you wish to add (upper and
lower cases do matter here). Once done, the EV3 Brick will be
connected to the hidden network and the network will be included
in the network list.
NOTE:
Once you have
connected to a network using
its password, the EV3 Brick will
remember the password for
future connections. Known
networks are indicated
in the list with an “*”.
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23
EV3 TECHNOLOGY
Connecting the EV3 Technology
Making a Wi-Fi connection from the computer to the EV3 Brick
Using the USB Cable, connect the EV3 Brick to the computer.
Open an EV3 Software program. Access the Wireless Setup tool in
the Hardware Window (at the bottom right of the screen), or select
Wireless Setup from the Tools Menu.
The computer will display which networks it detects.
Select the network you want to connect to and click on “Connect” to
configure the connection. To add a network that is not broadcasting
its Network Name (SSID), click “Add.”
Wireless Setup tool
To edit the settings of a previously configured network, click Edit.
Click OK to establish a Wi-Fi connection. Once the connection is
established, you can unplug the USB Cable.
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24
EV3 TECHNOLOGY
EV3 Brick Interface
The EV3 Brick is the control center for bringing your robots to life.
Using the Display and the Brick Buttons, the EV3 Brick Interface
contains four basic screens that give you access to an amazing
array of functions unique to the EV3 Brick. It can be something
as simple as starting and stopping a program, or something as
complicated as writing the program itself.
Run Recent
This screen will be blank until you begin to download and run
programs. It is the most recently run programs that will be displayed
on this screen. The program at the top of the list which is selected
by default is the latest program run.
Run Recent screen
File Navigation
This screen is where you will access and manage all the files on
your EV3 Brick, including files stored on a SD Card.
Files are organized in project folders, which in addition to the actual
program files also contain sounds and images used in each project.
In the File Navigator, files can be moved or deleted. Programs
created using the Brick Program and Brick Datalog apps are stored
separately in the BrkProg_SAVE and BrkDL_SAVE folders.
File Navigation screen
Open folder in File Navigation
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EV3 TECHNOLOGY
EV3 Brick Interface
Brick Apps
The EV3 Brick comes with five brick applications preinstalled and
ready to use. In addition, you can also make your own apps in the EV3
Software. Once downloaded to the EV3 Brick, the homemade apps
will be displayed here.
The five preinstalled apps are the following:
PORT VIEW
On the first screen in the Port View, you will see, at a glance, which
ports have sensors or motors attached. Use the EV3 Brick Buttons
to navigate to one of the occupied ports and you will see the current
readings returned from the sensor or motor. Attach some sensors and
motors and experiment with the different settings. Press the Center
button to see or change the current settings for the attached motors
and sensors. Press the Back button to get back to the Brick Apps
main screen.
MOTOR CONTROL
Control the forward and reverse movement of any motor connected
to one of the four output ports. There are two different modes. In
one mode, you will be able to control motors connected to Port A
(using the Up and Down buttons) and to Port D (using the Left and
Right buttons). In the other mode, it is motors connected to Port B
(using the Up and Down buttons) and Port C (using the Left and
Right buttons) that you control. Use the Center button to toggle
between the two modes. Press the Back button to get back to
the Brick Apps main screen.
Brick Apps screen
Port View app
Motor Control app
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EV3 TECHNOLOGY
EV3 Brick Interface
IR CONTROL
Control the forward and reverse motion of any motor connected
to one of the four output ports using the Remote Infrared Beacon
as remote control and the Infrared Sensor as receiver (the Infrared
Sensor must be connected to Port 4 in the EV3 Brick). There are
two different modes. In one mode, you will be using Channels 1
and 2 on the Remote Infrared Beacon. On Channel 1, you will be
able to control motors connected to Port B (using Buttons 1 and
2 on the Remote Infrared Beacon) and to Port C (using Buttons 3
and 4 on the Remote Infrared Beacon). On Channel 2, you will be
able to control motors connected to Port A (using Buttons 1 and 2)
and to Port D (using Buttons 3 and 4). In the other mode, you can
control your motors in the exact same way by using Channels 3 and
4 on the Remote Infrared Beacon instead. Use the Center button to
toggle between the two modes. Press the Back button to get back
to the Brick Apps main screen.
IR Control app
NOTE:
The Remote IR
Beacon and Infrared
Sensor are not part of
the LEGO® MINDSTORMS®
Education EV3 Core Set
but can be acquired
as accessories.
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27
EV3 TECHNOLOGY
EV3 Brick Interface
BRICK PROGRAM
The EV3 Brick comes with an on-brick programming application
similar to the software installed on your computer. These instructions
provide you with the basic information you will need to get started.
Create program
Open up your Brick Program App.
The Start screen provides you with a Start and a Loop block that
are connected via a Sequence Wire. The vertical broken Add Block
line in the middle indicates that you can add more blocks to your
program. Press the Up button to add a new block from the Block
Palette.
Start screen
Block Palette
New block added
Adjust block setting
In the Block Palette, you can choose which new block to add by
navigating using the Left, Right, Up, and Down buttons. Navigating
farther up, additional blocks will show. Navigating all the way down
will take you back to your program. Generally, there are two types
of blocks—Action and Wait. The Action Block Indicator is a small
arrow at the top right on the block. The Wait Block Indicator is a small
hourglass. In total, there are six different Action blocks and eleven
different Wait blocks to choose from.
When you find the block you want, navigate to it and press the Center
button. You will be taken back to your program.
In your program, you can navigate between the blocks using the Left
and Right buttons. Press the Center button to change the settings of
the highlighted block (always the block in the middle of the screen)
or to add a new block when the Sequence Wire is highlighted and
the Add Block line is visible.
On each programming block, you can change one setting using
the Up and Down buttons. For example, on the Action Move Steering
block, you can change the direction of your robot’s path. When you
have chosen the setting you want, press the Center button.
Full Block Palette
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EV3 TECHNOLOGY
EV3 Brick Interface
Delete blocks
If you want to delete a block from a program, highlight the block you
want to delete and press the Up button to go to the Block Palette.
In the Block Palette, navigate to the trashcan on the far left and
press the Center button. The block is now deleted.
Run program
To run your program, use the Left button to navigate to the Start
block at the very beginning of the program. Press the Center button
and your program will run.
Save and open program
To save your program, navigate to the Save icon on the far left of
your program. When clicking on the Save icon, you will be asked to
name your program or accept the default name. Once you are done,
click OK and your program is now saved in the BrkProg_SAVE folder
that can be accessed from the File Navigation screen (see page 25).
Delete block
You can also open any existing EV3 Brick Program by clicking on
the Open icon located above the Save icon. Use the Up and Down
buttons to toggle between those two icons.
Run program
Save program
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29
EV3 TECHNOLOGY
EV3 Brick Interface
BRICK DATALOG
The EV3 Brick comes with a simple-to-use, on-brick data logging
application. These instructions provide you with the basic information
you will need to get started.
Main screen
When you open the EV3 Brick Datalog app, you will see to the left
a Graph Area. If a sensor or motor is connected to the EV3 Brick,
a graph will show live readings from one of the sensors like an
oscilloscope (if a motor is connected, it is readings from the in-build
rotation sensor).
To the right of the graph, the following numbers are displayed (from
the top): actual reading, duration, highest reading, lowest reading,
and average reading. Duration will only be shown when running an
experiment—not when in Oscilloscope Mode.
Main screen
Underneath, a small window will indicate what port the values are
currently read from (Input Port 1, 2, 3, or 4, or Output Port A, B, C,
or D). To change the port, use the Left and Right buttons to click
through the available ports.
NOTE:
Only ports with
a sensor or motor
connected will be
displayed!
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EV3 TECHNOLOGY
EV3 Brick Interface
Set up and run experiment
If you wish to set up and run an experiment, start by clicking
on the Brick Datalog Settings button in the bottom right corner
symbolized by a wrench. Use the Down and Right buttons to navigate
to it and the Center button to click OK.
You can now decide the sample rate of your experiment, ranging
from one sample per minute to a thousand samples per second.
Use the Up and Down buttons to highlight Rate, then use the Left
and Right buttons to select the sample rate you wish to use for
your experiment.
Next, you can choose what sensor to use for your experiment.
Highlight Sensor Setup and click OK with the Center button.
Sample rate
Sensor setup
You will now get a list of sensors connected to your EV3 Brick.
Use the Up and Down buttons to highlight the sensor you want to
use. When a sensor is highlighted, use the Left and Right buttons
to select sensor mode (for example, if the Color Sensor should
measure color or ambient light). Once you have found the correct
sensor mode, use the Center button to click OK and you will be
taken back to the Settings screen. On the Settings screen, click
the check mark button and you are now back at the main EV3 Brick
Datalog screen.
To run your experiment, select and click on the Record button (next
to the Settings button with the wrench).
Run experiment
A live graph will now show the incoming values from the selected
sensor. To the right you can see the statistics of your experiment,
including duration. The flashing Record button and pulsing green
EV3 Brick Buttons Light indicate that your experiment is running. To
stop your experiment, click the Center button.
When stopping your experiment, you will be asked to name your
experiment or accept the default name. Once you are done, click
OK and your experiment is now saved in the BrkDL_SAVE folder
that can be accessed from the File Navigation screen (see page 25).
NOTE:
The live graph is not
supported when logging data at
higher rates than ten samples per
seconds. The incoming values
will then only be shown
as numbers.
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EV3 TECHNOLOGY
EV3 Brick Interface
Settings
This screen will enable you to see and adjust various general
settings on the EV3 Brick.
VOLUME
There may be occasions when you will want to adjust the volume
of the sound coming from the EV3 Brick Speaker. To change
the speaker volume, go to the Settings screen. As the top menu,
Volume will already be highlighted. Press the Center button.
Use the Right and Left buttons to change the volume setting, which
can be intervals from 0% to 100%. Press the Center button to accept.
This will return you to the Settings screen.
Settings screen
SLEEP
To change the amount of inactive time that passes before the EV3
Brick goes into Sleep Mode, go to the Settings screen and navigate
to the Sleep menu using the Down button. Press the Center button.
Use the Right and Left buttons to select a lower or higher time period,
which can be intervals from 2 minutes to never. Press the Center
button to accept. This will return you to the Settings screen.
Adjust volume
Adjust sleep
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EV3 TECHNOLOGY
EV3 Brick Interface
BLUETOOTH
This is where Bluetooth is enabled on the EV3 Brick, and where you
can choose some specific privacy and Apple iOS settings. Here
you can also connect to other Bluetooth devices such as another
EV3 Brick.
When you select Bluetooth on the Settings page, there are four
options presented—Connections, Visibility, Bluetooth, and iPhone/
iPad/iPod. To go back to the main Settings screen, press the Down
button until the check mark at the bottom of the screen is highlighted,
then press the Center button for OK.
Bluetooth
It is here that you enable standard Bluetooth on the EV3 Brick. Using
the Up and Down buttons, select the word “Bluetooth,” then press
the Center button for OK. A check mark will appear in the Bluetooth
box. Bluetooth is now enabled on your EV3 Brick, and a Bluetooth
icon will be shown in the top left of the EV3 Brick Display.
Enable Bluetooth
Note: This setting will not allow you to connect to an iOS device. For
this, you will need to select the iPhone/iPad/iPod setting (see below)!
To disable Bluetooth, repeat the above procedure, this time
unchecking the Bluetooth box.
iPhone/iPad/iPod
Select this setting only if you specifically want your EV3 Brick to
connect with Apple iOS devices—iPhones, iPads, and iPods—using
Bluetooth (make sure Bluetooth is enabled on your iOS device).
Note: Using this setting will not allow you to communicate with other
Bluetooth devices, including computers and other EV3 Bricks!
You cannot choose to enable both standard Bluetooth and Bluetooth
communication for Apple iOS devices at the same time.
To enable and disable Bluetooth communication for iOS devices, use
the Up and Down buttons to select “iPhone/iPad/iPod,” then press
the Center button for OK. A Bluetooth icon will be shown on the top
left of the EV3 Brick Display.
NOTE:
Your EV3 Brick will
run more efficiently if you
disable the Bluetooth
setting when it is
not in use.
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EV3 TECHNOLOGY
EV3 Brick Interface
Connections
This option allows you to discover and choose other available
Bluetooth devices (make sure Bluetooth is enabled). If you click
on “Connections,” you will be taken to a Favorites screen, where
the devices you trust are displayed and identified with a check mark.
No passkeys are needed for your trusted devices. Using the check
boxes, you can manage which devices you wish to have as Favorites.
If you then click on “Search,” the EV3 Brick will scan the area for all
detectable Bluetooth-emitting devices—including other EV3 Bricks.
Your favorite devices will be shown with an asterisk “*” symbol.
Use the Up and Down buttons to select the device on the list you
wish to connect to. Press the Center button for OK. If you choose to
connect to a device not yet marked as a Favorite, you will be asked
to enter the passkey to establish the connection. Once the other
device verifies the passkey, you are automatically connected to
the device.
Favorites list
Visibility
If the Visibility setting is selected, other Bluetooth devices (including
other EV3 Bricks) will be able to discover and connect to your EV3
Brick. If Visibility is unchecked, the EV3 Brick will not respond to
search commands from other Bluetooth devices.
Device list
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34
EV3 TECHNOLOGY
EV3 Brick Interface
WI-FI
This is where you enable Wi-Fi communication on the EV3 Brick and
connect to a wireless network. After selecting Wi-Fi on the Settings
screen, use the Up and Down buttons to select the word “WiFi” and
press the Center button for OK. A check mark will appear in the WiFi
box. Wi-Fi is now enabled on your EV3 Brick, and a Wi-Fi icon will be
shown in the top left of the EV3 Brick Display.
To go back to the main Settings screen, press the Down button until
the check mark at the bottom of the screen is highlighted, then press
the Center button for OK.
For information on how to connect your EV3 Brick to a wireless
network, see the Connecting the EV3 Brick to Your Computer section
on page 22.
Enable Wi-Fi
BRICK INFO
When you need to know the current technical specifications of your
EV3 Brick, such as hardware and firmware version and EV3 Brick OS
build, this is where you will find that information. This is also where
you can find out how much free memory you have available.
Brick Info
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35
EV3 SOFTWARE
MINIMUM
SYSTEM
REQUIREMENTS
Prerequisites:
+ Silverlight 5.0 or newer
+ Microsoft Dot Net 4.0 or newer
Operating systems:
+ Windows: Windows XP, Vista, Windows 7, and Windows 8
(excluding Win RT) (32/64 bit) with the latest service packs
+ Macintosh: Mac 10.6, 10.7, and 10.8 with the latest service packs
While building robots is fun, the heart of robotics is bringing them
to life—making them move and accomplish tasks. You will find
the LEGO® MINDSTORMS® Education EV3 Software to be:
+ A visual and intuitive introduction to programming
+ A helpful and comprehensive data logging tool
+ A digital workbook where instructions are given and findings
documented
+ A natural opportunity to inspire and show interest in the fields
of science, technology, engineering, and mathematics.
System requirements:
+ 2 GB of RAM or more
+ 1.5 GHz processor or faster
+ Minimal supported screen resolution—1024*600
LEGO® MINDSTORMS® Education EV3 does
not support tablets or certain netbooks
with hardware that does not meet
the above requirements.
Installing the Software
Once you have confirmed that your computer meets the minimum
system requirements, you are ready to install the software. Close all
other programs, then double-click on the installation file in the EV3
Software application folder. Installation will now begin.
TEACHER AND STUDENT EDITION
During the installation process you will be asked if you want to install
the Teacher or Student Edition of the EV3 Software. On Macintosh,
Teacher Edition can be selected when choosing Customized
installation.
In the Teacher Edition you will find additional information and
resources that can be useful in a classroom setting and in other
teaching situations. You will also have extended Content Editor
capabilities to access, create, and manage content used for
teaching: for example, by making programs inaccessible to students.
It is recommended that all educators install the Teacher Edition.
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36

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