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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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