January 2015
Intermediate to advanced
116 pages
6h 1m
English
Create patterns in light and sound — no microcontroller necessary

Photography by Make: Labs
Normally lurking unseen inside stereo systems, the digital potentiometer needs no adjustment, because it adjusts itself. Its fluctuating resistance can change the color or brightness of a light, the loudness or frequency of a sound, or any other parameters that depend on voltage and current.
Sealed inside the chip is a ladder of resistors. Figure
shows the idea. The connections between the ...
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