Data Sheet

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317. Orientation of IC
Build the circuit shown, turn on the switch (62) and you will hear the
sounds of a police siren from the speaker (93). Also, you will see the
heart LED (69) is ashing at the same time. If you ever looked at an IC
you would see that there is a dot or notch on them. Since many ICs are
symmetrical in shape (e.g. rectangular or square), the notch or dot is
use to represent the orientation of the IC relative to the pin locations
of the IC.
318. Electrocardiogram
Connect points C and D with a 4-wire (4) in project #317. Turn on the
switch (62) and you will hear gun shots and the heart LED (69) will ash
at the same time. Did you know that electricity plays an important role in
the way your heart functions? Muscle cells in the heart are contracted
by electricity that runs through your body.
319. Output Impedance
Connect points A and B with the 4-wire (4) in project #317. Turn on
the switch (62) and you will hear a re siren and the heart LED (69) will
ash at the same time. An Electrocardiogram (ECG) is a machine that
measures the electricity owing through your heart. If you have ever
seen that monitor on a TV show that shows the heartbeat of a patient…
that’s an ECG.
320. Lightning
Connect points E and F with a 4-wire (4) in project #317. Turn on the
switch (62) and the sounds of space battle will turn on with the heart
LED (69) will ash at the same time. Did you know that a lightning bolt
can carry 100 million Volts or more?
321. Electric EEL
Connect points G and H with a 4-wire (4) in project #317. Turn on the
switch (62) and you will hear music and the heart LED (69) will ash
to the music. Electric eels are dangerous because they can produce
electric shocks of 500V or more.
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