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o9 BARGRAPH
MEET THE BIT
The bargraph shows you how much signal the Bit is
receiving with a display of five light-emitting diodes (LEDs)
in different colors. Try it with a dimmer to make your own
adjustable lamp.
MINI-CHALLENGE
Can you invent a way to measure your mood?
SAMPLE CIRCUIT
o9 BARGRAPH
i5 SLIDE DIMMER
p1 POWER
REAL WORLD ANALOGIES
MUSIC VISUALIZER
TV VOLUME
HOW IT WORKS
The bargraph uses five LEDs
to turn electricity into light.
Each LED on the board
needs a certain amount of
signal in order to light up. As
you increase the signal sent
to the bargraph, more LEDs
will shine.
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