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Accurate Acoustic Sensor - Sound Frequency to Voltage Converter
[Customadds id=643821] The project presented here is a sensitive sound sensor. The circuit converts sound frequency and outputs DC voltage. The board consists of LM358 OPAMP and LM2907 IC. LM358 is used as a dual-stage microphone preamplifier and LM2907 acts as a frequency to voltage converter.... Read More
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