prprog
Member
How can I make this opamp amp. detect air flow? What I need is that the Electret mic. (EM) detect air flow and make the LED change light intensity based on how strong the air flow is. (I probably put the LED direction wrong in the diagram - sorry). Right now the LED intensity is very - very small . If I need to change the gain of the opamp , how do I do that?
Note: Those are the components I have on hand, the LM324 and the electrec mike.
Thanks,
Note: Those are the components I have on hand, the LM324 and the electrec mike.
Thanks,
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