Data Sheet

DOs and DON’Ts of Building Circuits
After building the circuits given in this booklet, you may wish to experiment on
your own. Use the projects in this booklet as a guide, as many important design
concepts are introduced throughout them. Every circuit will include a power source
(the 9V battery holder or USB cable), a resistance (which might be a resistor, LED
(which has an internal protection resistor), etc.), and wiring paths between them
and back.
You must be careful not to create “short circuits” (very low-resistance
paths across the power source, see examples below) as this will damage
components and/or quickly drain your batteries. ELENCO
®
is not responsible
for parts damaged due to incorrect wiring.
Here are some important guidelines:
ALWAYS USE EYE PROTECTION WHEN EXPERIMENTING ON YOUR OWN.
ALWAYS include at least one component that will limit the current through a circuit,
such as a resistor, an LED (which has an internal protection resistor), etc.
ALWAYS use switches in conjunction with other components that will limit the
current through them. Failure to do so will create a short circuit and/or
damage those parts.
ALWAYS disconnect your power source immediately and check your wiring if
something appears to be getting hot.
ALWAYS check your wiring before turning on a circuit.
ALWAYS connect the Snapino
TM
module (U31) using configurations given in the
projects, as per the About Your Parts section, or as per the Arduino website.
NEVER connect to an electrical outlet in your home in any way.
NEVER leave a circuit unattended when it is turned on.
NEVER connect battery holders from other Snap Circuits
®
sets to the Snapino
TM
(U31) module.
Placing a 3-snap wire directly across the 5V
OUT and GND snaps is a SHORT CIRCUIT.
This is also a
SHORT CIRCUIT.
When the press switch (S2) is
pushed, this large circuit has a
SHORT CIRCUIT path (as
shown by the arrows). The short
circuit prevents any other
portions of the circuit from ever
working.
!
NEVER
DO!
NEVER
DO!
!
You are encouraged to tell us about new programs and circuits you create. If they
are unique, we will post them with your name and state on our website at:
www.snapcircuits.net/learning_center/kids_creation
Send your suggestions to ELENCO
®
: [e-mail].
ELENCO
®
provides a circuit designer so that you can make your own Snap
Circuits
®
drawings. This Microsoft
®
Word document can be downloaded from:
www.snapcircuits.net/learning_center/kids_creation
or through the www.snapcircuits.net website.
Warning about power sources:
Snapino
TM
should ONLY be powered using a USB cable, the 9V
battery holder included in the set, or an AC adapter with 9V output
(not included). Snapino
TM
should NEVER be used with Snap
Circuits
®
battery holders from other sets or other power sources.
!
Examples of SHORT CIRCUITS - NEVER DO THESE!!!
WARNING: SHOCK HAZARD - Never connect Snap Circuits
®
to
the electrical outlets in your home in any way!
-7-
!
NEVER
DO!
!
NEVER
DO!
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