15. Magnet-controlled Optical
Fiber Tree
Build the circuit, move the magnet (7)
towards the reed switch (83), the colorful
LED (72) will turn on, the fiber optic tree
(40) is changing colors with the colorful
LED (72).
16. Motor Switch
Build the circuit, press the switch (62), the
motor (95) will turn on.
1st level
-22-
!
WARNING:
Moving parts. Do not
touch the fan or motor during
operation. Do not lean over the motor.
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