Sound Detection Sensor(LM393): 두 판 사이의 차이
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{{#seo:|title= | {{#seo:|title=ArduWiki: Arduino Sound Detection Sensor (LM393) Guide|title_mode=append|keywords=Arduino, Computer Science, Maker Learning, Project Assessment, Sound Detection Sensor (LM393), Arduino Project, Capstone Project, Arduino Example Code|description=How to control the sound detection sensor (LM393) using Arduino (basic info, circuit, example code). Useful for CS and maker classes.}} | ||
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This sensor utilizes a microphone to detect ambient sound. | This sensor utilizes a microphone to detect ambient sound. | ||
| 15번째 줄: | 16번째 줄: | ||
* Jumper cables | * Jumper cables | ||
* Sound detection module | * Sound detection module | ||
* LED | * [[LED 5mm EN|LED]] | ||
* 330 ohm resistor | * 330 ohm resistor | ||
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=== Execution Result === | === Execution Result === | ||
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2025년 3월 27일 (목) 18:19 기준 최신판
This sensor utilizes a microphone to detect ambient sound.
Specifications
- Operating Voltage: 4V ~ 6V
- Digital output
- Sensitivity adjustable via a variable resistor
Example Required Hardware
- Arduino board
- Jumper cables
- Sound detection module
- LED
- 330 ohm resistor
Connection
| Arduino | Sound Detection Module | LED | Resistor |
| 5V | 5V | ||
| GND | GND | K | |
| A2 | OUT | ||
| D2 | connected | ||
| A | connected |
Example Code
This example toggles an LED ON/OFF when sound is detected.
const int soundPin = A2;
const int LED = 2;
void setup() {
pinMode(LED, OUTPUT);
pinMode(soundPin, INPUT);
digitalWrite(LED, LOW);
}
void loop() {
if (digitalRead(soundPin) == HIGH) {
digitalWrite(LED, !(digitalRead(LED)));
delay(100);
}
}
Execution Result