KY-038 Sound Detection Sensor Module (LM393)
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Circuits Electronics | Sound Detection Sensor (KY-038) | 45 EGP | View in store |
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Lowest price recorded: 45 EGP
About this product
KY-038 sound detection module picks up sound intensity with a microphone and compares it against an adjustable threshold using an LM393 comparator. It suits clap switches, noise-level alarms and simple sound-triggered projects, and works with microcontrollers as well as digital or analog circuits.
Specifications
- Operating voltage
- 3.3 V to 5 V DC
- Comparator
- LM393 with threshold preset
- Operating current
- 4 to 5 mA
- Microphone sensitivity (1 kHz)
- 52 to 48 dB
- PCB size
- 3.4 cm x 1.6 cm
- Induction distance
- 0.5 m
Frequently asked questions
What is the price of KY-038 Sound Detection Sensor Module (LM393) in Egypt?
KY-038 Sound Detection Sensor Module (LM393) currently costs 45 EGP in Egypt.
Where can I buy KY-038 Sound Detection Sensor Module (LM393) in Egypt?
KY-038 Sound Detection Sensor Module (LM393) is available from Circuits Electronics. Compare the offers above to find the best price.
How do I adjust the sensitivity?
Turn the onboard potentiometer to set the threshold. The output changes state when the sound level crosses that threshold.
How do I wire it to an Arduino?
Connect VCC to 3.3 V or 5 V, GND to GND, and the DO pin to a digital input. The AO pin can be read by an analog input if you need the level.
