Can I read Room Noise Level Indicator Circuit on EtoBox?

Room Noise Level Indicator Circuit by Akhilesh Yaduwanshi is a document available to read on EtoBox.

What is Room Noise Level Indicator Circuit about?

This circuit uses an electret microphone and op-amps to detect when noise levels exceed thresholds of 50, 70, or 85 dB. It signals this with a flashing LED. It draws under 1mA normally but 12-15mA when the LED is on. The different settings allow monitoring noise levels in bedrooms, living rooms, and dangerous environments. It is powered by a 9V battery and contains resistors, capacitors, an LED, op-amps, a transistor, a microphone, and a switch to select the threshold.

Author

Akhilesh Yaduwanshi

Language

EN