Motors turn on and a beep sounds.
Motors continue to run while beeping
and continue after the beep ends.
Motors run for 2 seconds and stop,
then a beep sounds.
There is no command that tells the
motors to stop.
Motors turn on and continue to run.
While the wait command runs, there is
no change in behavior. Note that there
is no command that tells the motors to
stop.
Motors turn on and a beep sounds
after 2 seconds. This is an example
where the Wait For delays the beep.
Note that there is no command that
tells the motors to stop, therefore, they
Motors run for 2 seconds and stop.
The program waits for 3 seconds,
which has no effect on behavior. Note
that the motors turn off in the first
block.
Motors run for 3 seconds and stop.
The program waits for 2 seconds
before it beeps. This is an example of
Wait For resulting in a pause.
continue to run.
© 2002 The LEGO Group. Used here with permission.
Transparency # 1. To be used with M. Pathfinder activity.
Motors A and C are
on. They remain on
for 3 seconds after
the touch sensor is
pressed, moving in the
opposite direction,
then they turn off.
To turn the motors
Motors A and C are on. They
turn off when the touch sensor is
on again, an On AC
command is needed.
pressed.
Motors A
and C are on.
They stay on
when the
touch sensor
Motors A and C
are on. They stay
on when the touch
sensor is pressed.
is pressed.
© 2002 The LEGO Group. Used here with permission.
Transparency # 2. To be used with Working with Touch Sensors activity.
Motors A
and C turn on
Roverbot goes
backwards for
3 seconds
Turning off one motor
makes it turn for 1 second
because only motor C is on.
A was turned off; it must be turned
on again. Now motors A and C are
on. Roverbot moves forward.
Since we press and immediately
release, the program has the
motors reverse direction and
then go on with the release
stack. What will Roverbot do if
the sensor is never pressed?
© 2002 The LEGO Group. Used here with permission.
Transparency # 4. To be used with Touch and Go! activity
Don’t Fall Off the Table – Touch Sensor
Don’t Fall Off the Table – Light Sensor
© 2002 The LEGO Group. Used here with permission.
Transparency # 6. To be used with Lighten Up! activity.
Sender
Receiver
If you don’t clear the
message, the program
will not accept
additional messages.
© 2002 The LEGO Group. Used here with permission.
Transparency # 9. To be used with RCX to RCX Communication activity.
Motors A and C turn off for 2
seconds when the sensor is pressed.
An On AC block is used to turn
them on again.
© 2002 The LEGO Group. Used here with permission.
It takes the program 5
seconds before it gets to
the Yes or No block.
Transparency # 3. To be used with Working with Touch Sensors activity.
In this example, the Wait For and Beep
blocks are not part of the repeating
pattern. Therefore, they should not be
included in the repeat block.
Wait For and Beep are
executed before the
program carries out the
repeat block. Therefore,
Wait and Beep will run
once.
Wait For and Beep
are erroneously
included in the repeat
pattern.
© 2002 The LEGO Group. Used here with permission.
Transparency # 10. To be used with Additional Programming Highlights.
© 2002 The LEGO Group. Used here with permission.
Transparency # 7. To be used with Lighten Up! activity.
Turning on
motors A and C
© 2002 The LEGO Group. Used here with permission.
Transparency # 5a. To be used with Touch and Go! activity.
Moving in the
opposite direction
© 2002 The LEGO Group. Used here with permission.
Transparency # 5b. To be used with Touch and Go! activity.
Turning motors on
Moving backwards
for 3 seconds then
turning off motor A.
(Motor C stays on)
© 2002 The LEGO Group. Used here with permission.
Transparency # 5c. To be used with Touch and Go! activity.
Turning motors on
Moving backwards for
3 seconds
Turning off motor A for 1
second. Motor C
continues to run.
Roverbot turns.
Motor A turn on again.
Motor C is already on.
Motors reverse direction.
Roverbot moves forward.
© 2002 The LEGO Group. Used here with permission.
Transparency # 5d. To be used with Touch and Go! activity.
Here the program executes the On AC block
Here the program doesn’t leave the On AC
in a fraction of a second and immediately moves
block for 2 seconds, only then it drops to the next
to the next block, Beep
Motors A and C turn on. They
block, Beep.
Motors A and C turn on for 8
turn off when the touch sensor is
seconds. If the sensor is pressed
pressed. The motors do not turn
within these 8 seconds, the motors
on again.
stop briefly and immediately turn
on again for 8 seconds.
© 2002 The LEGO Group. Used here with permission.
Transparency # 2A. To be used with Working with Touch Sensors activity.
For the program to
follow the Yes branch,
the light sensor must
detect a light value
between 90 and 100.
The On AC block
takes ‘no time’ to
execute. The program
drops immediately to the
Yes or No block.
© 2002 The LEGO Group. Used here with permission.
Here on AC for 3 takes
3 second to execute. It
takes 3 seconds for the
program to get to the Yes
or No block.
Transparency # 6A. To be used with Lighten Up! activity.
Here a message is
sent once.
Here a message is sent
repeatedly.
In this program, a message is
sent each time a bright light is
shined at the light sensor.
© 2002 The LEGO Group. Used here with permission.
Transparency # 8. To be used with RCX to RCX Communication activity.