Elenco Snap Circuits Motion - Manual (Page 55)

Build the circuit and turn on the slide switch
(S1). Bang on the table or tap on the vibration
switch (S4) and lights come on. The lights stays
on for a while after the vibrations end. The lever
on the adjustable resistor (RV2) controls the
maximum light brightness and how long the
lights stays on after vibrations end; the brighter
the lights, the faster they shut off.
Project 103 Slow Off Vibration Lights
Build the circuit and turn on the slide switch (S1).
Lights comes on if the circuit is moved, or tilted
in some directions. The lights stay on for a while
after the tilt is removed. The lever on the
adjustable resistor (RV2) controls the maximum
light brightness and how long the lights stay on
after tilt is removed; the brighter the lights, the
faster they shut off.
Project 101 Slow Off Tilt Lights
Project 102
Very Slow
Off Tilt
Lights
Use the preceding circuit,
but replace the 1mF
capacitor (C7) with the
larger 100mF capacitor (C4).
The circuit works the same
but the larger capacitor will
keep the LEDs on longer.
Set RV2 to the left side or
the LED may seem to stay
on too long.
Project 104
Very Slow Off
Vibration
Lights
Use the preceding circuit,
but replace the 1mF
capacitor (C7) with the
larger 100mF capacitor (C4).
The circuit works the same
but the larger capacitor will
keep the LEDs on longer.
Set RV2 to the left side or
the LED may seem to stay
on too long.
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The LEDs (D8 & D10) will
not be as bright as in the
preceding circuit, because
the current (which is limited
by RV2) is divided between
them. The color LED may
only produce red light,
because red light is easier to
produce.
The LEDs (D8 & D10) will
not be as bright as in the
preceding circuit, because
the current (which is limited
by RV2) is divided between
them. The color LED may
only produce red light,
because red light is easier to
produce.
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