Elenco Circuit Maker Sound Plus 200 - Manual (Page 15)

Project #4 Playback & Record
Use the circuit in Project #4. Replace the press
switch (S2) with the photoresistor (RP), then turn
on the slide switch (S1). Turn the music on and
off by waving your hand over the photoresistor.
Project #5
Light-Controlled
Music
Use the circuit in Project #4. Place a single snap
on base grid point F1. Replace the press switch
(S2) with the PNP transistor (Q1, with the arrow
on point E2) and then turn on the slide switch
(S1). Turn the music on and off by touching
points F1 & G2 at the same time. You may need
to wet your fingers.
Project #6
Touch-Controlled
Music
Use the circuit in Project #4. Make a new
recording warning that you detected water.
Remove the press switch (S2) and connect the
ends of the red and black jumper wires where it
had been. Place the other ends of the jumper
wires into a cup of water to activate your alarm.
Project #7
Water Alarm
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Build the circuit shown. Turn on the slide switch (S1), you hear a beep
signaling that you may begin recording. Talk into the microphone (X1)
up to 5 seconds, and then turn off the slide switch (it also beeps after
the 5 seconds expires).
Press the press switch (S2) for playback. It plays the recording you made
followed by one of three songs. If you press the press switch before the
song is over, music will stop. You may press the press switch several
times to play all three songs. The lamp (L4) is used to limit current and
will not light.
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CM-200_Manual_031914.qxp_CM-200_Manual_031914 4/2/14 12:04 PM Page 15