Elenco Projects 1-101 - Manual (Page 20)

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Project #27
OBJECTIVE: To build a police siren and other sounds that are
controlled by clapping your hands.
Build the circuit shown on the left by placing all the parts with a black
1 next to them on the base grid first. Then, assemble parts marked
with a 2.
Turn on the slide switch (S1) and a police siren is heard and then
stops, clap your hands and it will play again. Note however that music
can be heard faintly in the background of the siren. If clapping does
not trigger the sound, tap the whistle chip (WC) with your finger.
Clap Sounds
Project #28
More Clap
Sounds
OBJECTIVE: To show how
ICs can do many jobs.
Project #29
More Clap
Sounds (II)
OBJECTIVE: To show how
ICs can do many jobs. OBJECTIVE: To show how
ICs can do many jobs. OBJECTIVE: To show how
ICs can do many jobs.
Project #30
More Clap
Sounds (III)
Project #31
More Clap
Sounds (IV)
Modify the last circuit by
connecting points X & Y using
the black jumper wire. The
circuit works the same way but
now it sounds like a machine
gun.
Now remove the connection
between X & Y and then make a
connection between T & U. The
circuit works the same way but
now it sounds like a fire engine.
Now remove the connection
between T & U and then make a
connection between U & Z. The
circuit works the same way but
now it sounds like an
ambulance.
Now remove the connections
between U & Z and between V &
W, then make a connection
between T & U. The circuit
works the same way but now it
sounds like a familiar song but
with static.