60.- Hand-controlled music
doorbell.
Turn the slide switch
15 on, the speaker will
emit a sound. When
the music stops, the music
can be controlled by the
switch 14.
61.- Magnet-controlled
music doorbell
Replace the switch 14 by
the switch 13, you can
control the doorbell with a
magnet.
62.- Light-controlled music
doorbell
Replace the switch 14 with
the photosensor 16, you
can use the light to control
the doorbell.
When the light hits the
photosensor, the doorbell
rings. If the photosensor is
Shift the switch to 3V position
shaded from light, the
music will stop.
ENGLISH-34