Publicité
72. Manually-activated star wars sound effects with light
You can generate the sounds of different weapons and turn on the lamp by alternately or si-
15
and the button 14.
multaneously operating the switch
73. Magnetically-activated star wars sound effects with light
15
with the reed switch 13. Now you can use the magnet to operate the star
Replace the switch
wars sound effects.
74. Light-activated star wars sound effects with light
Replace the switch
15
with the phototransistor 132. You can activate the star wars sound ef-
fects by intermittently shielding the phototransistor with the palm of your hand.
75. Touch-activated star wars sound effects with light
14
with the touch plate 12. You can activate the star wars sound effects by
Replace the button
intermittently touching the plate.
94
76. Light-activated electric fan
When light hits the phototransistor
132
, the fan rotates and the LED
17
lights up. If you shield
the phototransistor from light, the LED goes out and the fan stops rotating.
77. Touch-activated fan
132
. When you touch the touch plate 12, the fan starts to spin
Remove the phototransistor
and the LED lights up. If you stop touching the plate, the fan and LED turn off.
78. Touch-activated bright lamp
Replace the electric motor
24
with the light-bulb 18. When you touch the touch plate 12, both
the lamp and the LED lights up.
79. Light-activated bright lamp
Attach the phototransistor
132
again. Now you can use light to turn on l the ight-bulb
the LED
.17
80. Light-activated star wars with light
17
with the light-bulb 18. Replace the
Assemble the circuit as in the diagram. Replace the LED
motor
24
with the piezo buzzer 11. When light hits the phototransistor, the lamp will light up
and the piezo buzzer will generate sound.
95
18
and
Publicité
