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Analog sound and light detection module

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Analog sound and light detection module
DaveRodda Offline
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#3
11-16-2018, 10:48 AM (This post was last modified: 11-28-2018, 09:57 AM by DaveRodda.)
Hi...The only reason for R3 is because the LM393 has an open collector output. If you use a different op-amp, you may not need it. You'll have to play around with R1 and R2 values, but offhand, I'd make them both 10k ohms for an 8 ohm voice coil as L1.

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RE: Analog sound and light detection module - by DaveRodda - 11-16-2018, 10:48 AM

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