Elenco Projects 102-305 - Manual (Page 42)

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Project #219 Laser Gun with
Limited Shots
OBJECTIVE: To build a circuit with laser gun sounds and a
limited amount of shots.
Project #220 Symphony of Sounds
OBJECTIVE: To combine sounds
from the music, alarm, and space
war integrated circuits.
OBJECTIVE:
See project #220.
The preceding circuit may be too
loud, so replace the speaker (SP)
with the whistle chip (WC).
Build the circuit shown. Turn it on and
press the press switch (S2) several
times and wave your hand over the
photoresistor (RP) to hear the full
symphony of sounds that this circuit
can create. Have fun!
When you press the press switch (S2), the alarm IC (U2) should start
sounding a very loud laser gun sound. The speaker (SP) will sound,
simulating a burst of laser energy. You can shoot long repeating laser
burst, or short zaps by tapping the trigger switch. But be careful, this
gun will run out of energy and you will have to wait for the energy pack
(C5) to recharge. This type of gun is more like a real life laser gun
because power would run out after a few shots due to energy drain. In
a real laser, the energy pack would have to be replaced. Here you only
have to wait a few seconds for recharge.
Project #221
Symphony of
Sounds (II)