221.- Hand-controlled sound of a
buzzer
Turn the switch 15 on, when the
music stops, press the switch 14 to
control it.
222.- Magnet-controlled sound of a
buzzer
Replace the switch 14 with the
switch 13, then you can control the
music with a magnet.
223.- Light-controlled sound of a
buzzer
Replace the switch 14 with a photo
sensor 16, the music can be
controlled by light
224.- Water-controlled sound of a
buzzer
Replace the switch 14 with a touch
plate 12, when you drip water onto
the plate, the buzzer 11 will emit
music.
Shift the switch to 3V position
ENGLISH-65