NATURE & DECOUVERTES 42000880 Manual Del Usuario página 43

5
22
2
3V +
19
6
112. Pulsing Sound and Light
Assemble as illustrated. Close the button switch 14 . The lamp 18 flickers and the spea-
ker 20 produces a music.
113. Pulsing LED and Lamp
Replace the speaker with the LED . (The negative (-) end should be connected
20 17
to the Music IC .) Close the button switch . The LED and the
21 14 17
17
+
84
114. AND gate
Assemble as illustrated.The LED does not turn on unless the slide switch
17
button switch are both on. This is an example of an AND GATE.
14
lamp flicker.
18
115. OR gate
Assemble as illustrated. The LED turns on when either the slide switch
17
button switch is closed. This is an example of an OR GATE.
14
+
24
AND the
15
15
OF FO N
15
2
OF FO N
14
OR the
15
17
2
+
85
3
3V +
19
14
2
3V +
19
2