User Manual

-13-
Project 1 Red Light
Snap Circuits
®
uses electronic blocks that snap onto a clear plastic grid
to build different circuits. These blocks have different colors and
numbers on them so you can easily identify them.
Build the circuit shown on the left by placing all the parts with a black 1
next to them on the board first. Then, assemble parts marked with a 2.
Install three (3) “AA” batteries (not included) into the battery holder (B3)
if you have not done so already.
Turn on the slide switch (S1), and the red LED (D1) lights.
+
Project 2 Lights
Build the circuit shown here and turn on the
slide switch (S1). The red, green, and yellow
LEDs (D1, D2, & D10) light.
+
YELLOW
Try reversing the position of the slide switch
(S1), 2-snap wire, and each of the LEDs (D1,
D2, & D10), separately.
Project 3
Reverse Lights
Placement
Level
Numbers
Snappy says w hen you
turn on the slide switch,
electricity flows from the
batteries, through the red
LED and back to the
battery through the switch.
If the switch is off, the flow
of electricity is blocked, and
the red LED won’t light.
NOTE: this circuit (and many others in this
book) have an LED being used without a
resistor or other component to limit the
electric current through it. Normally this
could damage an LED but your Snap
Circuits
®
LEDs include internal protection
resistors, and will not be damaged. Be
careful if you later use other electrical sets
with unprotected LEDs.
Placement Level Numbers
Reversing the slide switch
and 2-snap wire has no
effect. LEDs only work in
one direction, so the red &
green LEDs do not work in
reverse, but the yellow
LED (D10) is a bi-color
LED, with separate red &
yellow LEDs in opposite
directions, as shown in its
symbol.
LEDs are light emitting
diodes, which convert
electrical energy into
light. The color of the
light depends on the
characteristics of the
material used in them.