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audioMux
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add basic readme

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Julian Daube 2019-07-28 17:30:24 +02:00
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## Wat
This pcb is an audio multiplexer, meaning it can switch three analog inputs into one analog output.
## Why
Sometimes you just need more inputs. And this is how you do it.
## How
The BD3491 does all the audio switching. It combines one 6 input switch and an equalizer into a simple package.
The STM32 configures the BD3491 to switch to the specified inputs based on pressed buttons or software control.