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The process of creating electronic products, including components and end-user devices.

3 votes
3 answers
401 views

Design help! -- Play a pure tone into a mic and depending on its frequency a specific LED wi...

I'm still new to electronics and am making this in order to learn more about circuit design and filters. I do not want to use microcontrollers. I want a purely analog solution. … How can I take this into account when I design the circuit? …
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