fischertechnik COMPUTING ROBO MOBILE SET 8 Mode D'emploi page 41

R
O B O
R e s u l t :
Amount of Pulses
Test 1 40
Test 2 40
Test 3 40
You can say that the model travels a distance of roughly one centimeter (or 0.394 in.) per pulse.
By now you will also know what rotational direction you have to set for each motor in order for the model
to drive in a certain direction. Record what you have learned in the table below so you don't have to
think about it each time you want to change the driving direction. If you connect the wires exactly as
described in the construction manual, a rotational direction to the left causes the wheel to go forward
for any motor. That's how the motors are programmed in all sample programs.
C o m p l e t e t h e t a b l e :
Direction of Model
Straight
Backwards
Left
Right
Stop
Normally you would have to place two motor symbols on the screen for each change of direction. This
can be avoided by creating a subprogram for each direction. This will simplify the programming
enormously. Chapter 4 of the ROBO Pro software manual describes in detail how to create a subprogram.
As soon as you have read this chapter you are ready to tackle the next assignment. You can now switch
to level 2 in ROBO Pro.
A s s i g n m e n t 2 ( L e v e l 2 ) :
● Create a subprogram for each direction.
● Program the model to drive along the path of a square with an edge length of one
meter (or 3.28 ft.).
● How high is the repeat accuracy?
M S
O B I L E E T
Covered Distance
Rotational Direction M1
ccw
A B
C T I V I T Y O O K L E T
Distance/Pulse
Rotational Direction M2
ccw
GB+USA
3 3 9 9
3 3 9 9