User Manual

Turn on the slide switch (S1);
the display on the LED-MC
(U29) shows “00”. Press the A
button on the selector (S8) to
increase the ones digit on the
display, and press the C button
on the selector to increase the
tens digit on the display. When
the display shows “21”, press
the B button on the selector to
start.
Strange sounds will be heard
on the speaker (SP2), and six
LEDs (D1, D2, D10, and three
in the disco motor (DM))
change in sync with the sound.
Project 68
Pent-Light
Funky Siren
Use the preceding circuit, but
move the end of the red jumper
wire from point C to point Z
(between the speaker and D10).
The LEDs on the disco motor
(DM) are dimmer now, and the
blue LED may not be on at all.
In this circuit the LEDs in the disco
motor get less voltage. This
affects the blue LED the most,
since it needs more voltage to
function than red & green LEDs.
-36-
Project 67
Hex-Light Funky Siren
Project 69
Hex/Pent
Light Funky
Siren (II)
Use either of the preceding
circuits, but add a
connection between the
points marked B & C using a
blue jumper wire. The sound
is different now.
Use the preceding circuit,
but remove the connection
between B & C, and add a
connection between C & D.
The sound is different now.
Use the preceding circuit,
but remove the connection
between C & D, and add a
connection between A & D.
The sound is different now.
Use any of the five preceding circuits. Turn on the
slide switch (S1); the display on the LED-MC
(U29) shows “00”. Press the A button on the
selector (S8) twice to increase the ones digit on
the display. When the display shows “02”, press
the B button on the selector to start.
There will be a random display of lights and a
siren. The display on U29 also changes randomly.
Project 70
Hex/Pent
Light Funky
Siren (III)
Project 71
Hex/Pent
Light Funky
Siren (IV)
Project 72
Random Funky
Siren & Lights