RoboLab Icons Reference Sheet CORC 3303 – Joel Kammet

RoboLab Icons Reference Sheet
Motor A forward:
Turns on the motor connected to output port A
in the forward direction.
Motor random:
Turns on all motors (or the motors specified by
attaching port modifiers) in a random direction.
(Remember: a random direction, not random directions,
meaning that all motors controlled by one of these
icons will go in the SAME random direction.)
Output port A modifier:
When attached to a motor command, indicates
that the command applies to the motor connected to
Output Port A.
Input port 1modifier:
When attached to a sensor command, indicates
that the sensor is connected to Input Port 1.
Wait for random time: causes the program to wait
for a random time before executing the next
instruction. (Waits 0-5 sec. or 0-N sec. where N is a
number specified in an attached Numerical Constant.)
Wait for N seconds, where N is a number
specified in an attached Numerical Constant:
causes program to wait for N seconds before executing
the next instruction.
Task split: splits the REST OF THE PROGRAM
into two branches (tasks) which will be executed
simultaneously. This implements multitasking. EACH
task must have its own “End of program” icon.
Start task(s): restarts all tasks or a task specified
in an attached Numerical Constant.
CORC 3303 – Joel Kammet
Motor C reverse:
Turns on the motor connected to output port C
in the reverse direction.
123
Turns off the motor or lamp connected to
output port C
Numerical Constant used as a modifier for various
functions.
Power Level 3 modifier:
When attached to a motor-on command, indicates that
the motor should run at power level 3.
Wait for N hundredths of a second (where N is a
number specified in an attached Numerical Constant):
causes the program to wait for N/100 seconds before executing
the next instruction.
Wait for touch sensor: causes the program to wait until
the touch sensor is pressed before executing the next
instruction.
End of program: indicates end of the program. Does
NOT turn off output devices (motors, lamps) if they
are running. (When multitasking, this indicates end of one
branch of the program.)
Stop task(s): stops all running tasks, or, if Numerical
Constant 1 or 2 is attached, stops the corresponding
(upper or lower) task.

Light Sensor Fork: (attach a Numerical Constant
to this icon) splits program into two branches.
When light sensor reading is greater than the attached
constant, the program continues along the upper branch.
Otherwise, program continues along the lower branch.
The branches must be rejoined using a Fork Merge at
some point before the end of the program.
Fork Merge: used to rejoin branches of a program
following a fork.
Start of Loop: all commands between this icon
and the End of Loop icon will be executed N
times (where N is a number specified in a Numerical
Constant attached to the Start of Loop icon).
Jump: causes execution to jump to another point
in the program. The next command to be
executed will be the one immediately following the Land
icon of the corresponding color.
Some other useful facts to remember:
Touch Sensor Fork: splits program into two branches.
When touch sensor is released, the program continues
along the upper branch. When touch sensor is pressed, the
program continues along the lower branch.
The branches must be rejoined using a Fork Merge at some
point before the end of the program.
Plays musical note C.
End of Loop: all commands between this icon
and the Start of Loop icon will be executed N times
(where N is a number specified in a Numerical
Constant attached to the Start of Loop icon).
Land: indicates the point at which program execution
continues after a jump.
An arrow pointing towards the right on a motor icon indicates “forward”. An arrow pointing towards the left on a motor
icon indicates “reverse”.
Be sure that you understand the distinction between a fork and a task split. In a fork, only 1 of the 2 branches is executed
at any given time, and the 2 branches of a fork always merge back together (using a fork merge icon) before the end of the
program. In a task split, both branches are executed simultaneously (multitasking), and the branches NEVER merge –
instead, each branch (task) continues to its own end, marked by its own “End of program” icon.
A musical note icon or a “play a sound” icon, in addition to playing the sound, also acts as a sort of “Wait for time” icon.
The program “waits” while the sound is playing. This means that if a motor was turned on just before the musical note, the
motor will run while the note plays even if there is no actual “Wait for time” icon after the motor icon.
CORC 3303 – Joel Kammet