LM393 Sound Detection Sensor Module – Black
LM393 Sound Detection Sensor Module is more durable. The sound level setpoint is set via an onboard potentiometer. When the sound level exceeds the setpoint, an LED on the module is illuminated and the output is sent low. It can be used for Acoustic control light; giving sound and light alarm working with Photosensitive sensor.
Note: This sensor only recognizes the availability of sound cannot identify the size of the sound or the specific frequencies of sound.
LM393 Sound Detection Sensor Module – Black
Available:In Stock
- Product SKU: KG111
₹ 75
₹ 119
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Specification
Description
LM393 Sound Detection Sensor Module for Arduino detects whether the sound has exceeded a threshold value. The sound is detected via a microphone and fed into an LM393 op-amp. This output high and low signal threshold - Sensitivity potentiometer adjustment.LM393 Sound Detection Sensor Module is more durable. The sound level setpoint is set via an onboard potentiometer. When the sound level exceeds the setpoint, an LED on the module is illuminated and the output is sent low. It can be used for Acoustic control light; giving sound and light alarm working with Photosensitive sensor.
- There is a mounting screw hole of 3mm.
- Use 5v DC power supply
- There is threshold level output flip.
- Real-time output of the microphone voltage signal / DO. when the sound intensity reaches a threshold
Note: This sensor only recognizes the availability of sound cannot identify the size of the sound or the specific frequencies of sound.
Technical Details
- Operating Voltage (VDC) : 3.3 ~ 5
- IC Chip : LM393
Physical Attributes
- Length × Width × Height(mm) : 32 × 17 × 10
- Weight (gm) : 3
Integration with Arduino

Sample Code
Applications
- Hearing aids
- Telephones
- Tape recorders and karaoke
- Live and recorded audio engineering
- Radio and television broadcasting
- Speech recognition technology
Additional Details
- Signal output indication.
- The output is digital.
- Single-channel signal output.
- With the retaining bolt hole, convenient installation.
- Output low level and the signal light when there is sound.