Sound Detection Sensor

Br 600.00

  • A sound sensor module is an electronic component that detects sound waves and converts them into an electrical signal.�It uses a microphone to sense the sound’s intensity and then an amplifier and a comparator, like the LM393 IC, to process the signal.The module provides both an analog output (voltage proportional to the sound level) and a digital output that goes high or low when the sound level crosses a threshold set by an onboard potentiometer.�
  • Operating Voltage: 3.3V to 5V DC
  • LM393 comparator with threshold preset
  • PCB Size: 3.4cm * 1.6cm
  • Induction distance: 0.5 Meter
  • Operating current:  4~5 mA
  • Microphone Sensitivity (1kHz): 52 to 48 dB
  • Easy to use with Microcontrollers or even with normal Digital/Analog IC
  • This Sound Detection Sensor Module consists of a Microphone, resistors, capacitor, potentiometer, comparator LM393 IC, Power, and status LED in an integrated circuit.
  • LM393 Comparator IC is used as a voltage comparator in this Sound Detection Sensor Module. Pin 2 of LM393 is connected to Preset (10KΩ Pot) while pin 3 is connected to Microphone. The comparator IC will compare the threshold voltage set using the preset (pin2) and the Microphone pin (pin3).
  • The microphone in the Sound sensor module detects the sound. This sound is fed into the LM393 IC.
  • Using the onboard preset, you can adjust the threshold (sensitivity) of the digital output.

Pin Configuration

  • VCC – The Vcc pin powers the module, typically with +5V
  • GND – Power Supply Ground
  • DO – Digital Output Pin. Directly connected to digital pin of Microcontroller
  • AO – Analog Output Pin. Directly connected to an analog pin of Microcontroller

Applications

  • Hearing aids
  • Telephones
  • Tape recorders and karaoke
  • Live and recorded audio engineering
  • Radio and television broadcasting
  • Speech recognition technology

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