-10-
Project 1
Electric Light
Snappy says the color LED actually
contains separate red, green, and blue
lights, with a micro-circuit controlling
them.
LEDs are like valves, because they only
let electric current flow in one direction.
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 that 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 two (2) “AA” batteries
(not included) into the battery
holder (B1) if you have not done so
already.
Turn on the slide switch (S1), and
Egg LED
attachment
Snappy says when you turn on the slide switch,
electricity flows from the batteries through the
lamp and back to the battery through the switch.
If the switch is off, the flow of electricity is
blocked, and the lamp won’t light.
Project 2
Color Light
Turn on the slide switch (S1), and enjoy
the light show from the color LED (D8).
For best effects, place the egg on the
color LED, and dim the room lights.
Try reversing the position of the slide
switch (S1), 100
W
resistor (R1), and
color LED (D8), separately. Reversing
the switch and resistor has no effect, but
the LED does not work in reverse.
+
Placement Level Numbers
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