Variobot varikabi Manual page 85

Connection of the Motors
varikabi moves with the help of two
particularly slow and quiet DC motors. With
the black rubber caps varikabi therefore
requires neither a gear nor wheels.
The speed of the motors is set by the level
of the applied voltage. This voltage is
controlled with the help of the transistors or
the sensors respectively.
Depending on which transistor (T
which one of the motors (M
following behaviors arise:
T M
2 2
T M
1 1
T M
2 2
T M
1 1
, T ) drives
2 1
, M ), the
2 1
Shadow Follower
Light Follower
The following diagram shows how the
cables are to be mounted in the rows + 2 8
–. Depending on the selected function,
connect the motor cables as light or shadow
follower.
 Light Follower:
 Shadow Follower: red cables are outside
Note:
By connecting the motors differently,
you determine whether varikabi will be
driving toward the dark or the light.
The rotation direction of the motors depends
on the polarity of the applied voltage. In
order for varikabi's engines to spin forward,
make sure that the red connections always
cross and the black ones run parallel.
red cables are inside