|
Description |
|
|
Primary Purpose |
Detects sound presence/amplitude
(not for high-fidelity audio recording). |
|
Output Type |
Digital (DO) or Analog (AO),
depending on the model. |
|
Sensitivity |
Adjustable via potentiometer (in
most modules). |
|
Frequency Response |
Limited (typically 50Hz–10kHz). |
|
Signal Processing |
Basic (sound detection or
threshold triggering). |
|
Interface |
Digital (DO) / Analog (AO)
(Arduino-compatible). |
|
Power Supply |
3.3V–5V (common for DIY
electronics). |
|
Key Components |
Electret microphone, LM393
comparator, amplifier circuit. |
|
Common Applications |
Clap switches, noise-activated
triggers, simple sound-reactive projects. |
|
Example Models |
KY-038, LM393 Sound Sensor. |
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