Manual

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15. Colorful Fiber Tree
Build the circuit, move the magnet (7) towards the reed
switch (83), the colorful LED (72) will turn on and the ber
optic tree (40) changes colors with the colorful LED (72).
The colorful LED (72) is made of three LEDs (one Red,
one Green and one Blue) connected to a tiny Integrated
Circuit (IC) that varies the percentage of time each LED is
“ON”. For instance, the colorful LED (72) will look Red if
the Red LED inside is ON 100% of the time and the Green
and Blue LEDs are OFF 100% of the time. But if both Red
and Green are on 100% of the time and the Blue LED is
OFF 100% of the time, then the Colorful LED (72) will look
Yellow. Similarly, Red & Blue ON will look Magenta (Purple)
and Green & Blue ON will look Cyan (light blue). In between
colors can be formed by adjusting the percentage of time
each LED is on between 0-100%.
16. Motor Switch
Build the circuit, press the switch (62) and the motor (95)
will turn on. Electrical energy from the batteries (91) has
been changed to mechanical energy by the motor (95).
1st level
WARNING: Moving parts. Do not
touch the motor during operation. Do
not lean over the motor.
!