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33. Light-activated lamp
Connect the photosensor
132
to terminals C-D and turn on the switch 15. When the light-bulb
18
turns off, you can activate it with light. When the light hits the phototransistor, the lamp turns
on. When the phototransistor is shaded, the lamp goes out.
34. Water-activated lamp
Connect the touch plate
12
to terminals C-D and turn on the switch 15. When water drops hit
the plate the lamp lights up.
35. Sound-activated lamp with time delay
11
18
Connect the piezo buzzer
to terminals A-B. When the light-bulb
turns off, clap your
hands or say something out loud – the lamp will light up again and after a while go out.
36. Motor-activated lamp with time delay
Connect the electric motor
24
to terminals A-B. When the lamp turns off, lightly turn the motor
shaft. The lamp will light up again and after a while go out.
37. Singing electric motor
18
with the electric motor 24, then connect C-D with a wire. Turn on the
Replace the light-bulb
switch 15. The electric motor will start humming.
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38. Manually-activated luminous musical doorbell
Turn on the switch 15. The piezo buzzer
11
will play music and the light-bulb
When the music stops, the doorbell will be activated when you press the button 14.
39. Magnetically-activated luminous musical doorbell
14
with the reed switch 13. Now you can use the magnet to operate the
Replace the button
doorbell.
40. Light-activated luminous musical doorbell
Replace the button
14
with the phototransistor 132. Now you can operate the doorbell by
shining light on the reed switch 13.
41. Wet diaper alarm
18
will light up.
Replace the button
14
with the touch plate 12. When a drop of water or urine hits the plate,
music will start to sound and the lamp will light up.
42. Motor-activated luminous musical doorbell
24
Connect the electric motor
to terminals A-B. When the music stops, gently turn the motor
shaft. The music will play again and the lamp will light up.
43. Light-activated buzzer
Replace the light-bulb
18
with the phototransistor
132
and turn on the switch 15. When you
press the button 14, the buzzer
11
emits a sound that will vary depending on the intensity of
the light.
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