Elenco Electronics SCP-13 Instructions

WARNING: Always check your wiring before
turning on a circuit. Never leave a circuit
unattended while the batteries are installed.
Never connect additional batteries or any other
power sources to your circuits.
Project 1 Motion Detector
+
Placement
Level Numbers
Snap Circuits uses electronic blocks that snap onto a base grid to build different
®
circuits. These blocks have different colors and numbers on them so that you can
easily identify them. Build the circuit shown by placing all the parts with a black 1
next to them on the clear base grid first. Then, assemble parts marked with a 2.
Then, assemble the part marked with a 3. Install three (3) "AA" batteries (not
included) into the battery holder (B3). Place the base grid into the blue stand (with
either the battery holder or the NPN transistor (Q2) closest to the stand) and
carefully stand it up. Position it near the edge of a table, facing across a room.
Turn on the slide switch (S1). The color LED (D8) lights and the horn (W1) sounds
for a few seconds on start-up, and then whenever the circuit detects motion in the
room.
This circuit will work in the dark, but be careful not to hurt yourself moving around
a room in the dark.
Copyright © 2014 Elenco
(800) 533-2441 Fax: (847) 520-0085
Motion Detector
Model SCP-13
Project 2
Use the circuit from project 1,
but remove the horn (W1). The
circuit works the same, except
This circuit is
no longer makes any noise. If
pictured on the
desired, try placing the egg on
front of the box,
the color LED (D8), but it may
use that picture to
not fit tightly enough to stay on
help in building it.
when the circuit is placed in the
blue stand.
Next, replace the color LED
(D8) with the horn. Now the
circuit makes noise but not light.
Project 3
If you have any problems, contact Elenco
Electronics, Inc. All Rights Reserved.
®
e-mail: elenco@elenco.com
Silent or Noisy Motion Detector
Objects that generate heat, including people and
animals, also produce infrared radiation. Infrared
radiation cannot be seen wth our eyes, but can be
detected.
The motion detector (U7) is designed to detect
changes in infrared radiation, especially the type
Egg
emitted by people. The NPN transistor (Q2) acts as
(place on
an amplifier, helping the motion detector turn on the
color LED)
color LED and horn.
Low Power Motion Detector
®
150 Carpenter Ave. Wheeling, IL 60090
Website: www.elenco.com or www.snapcircuits.net
WARNING: SHOCK HAZARD -
Never connect Snap Circuits
®
to the electrical outlets in your
home in any way!
Place the base grid into the blue
stand (with either the battery
holder or the 2-snap wire
closest to the stand) and
carefully stand it up. Position it
near the edge of a table, facing
across a room.
Turn on the slide switch (S1).
The color LED (D8) lights for a
few seconds on start-up, and
then whenever the circuit
detects motion in the room.
The color LED will not be as bright
as it was in projects 1 & 2,
because this circuit does not have
the NPN transistor (Q2) as an
amplifier. This circuit uses less
electricity than projects 1 & 2, so
your batteries will last longer.
753162