我的Arduino项目

项目介绍

When your hand approaches the ultrasonic sensor, display the distance between your hand and the ultrasonic sensor

代码介绍

const int soundSensorPin = A0;
const int ledPin = 9;
const int soundThreshold = 550;
void setup() {
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
}
void loop() {
int soundLevel = analogRead(soundSensorPin);
if (soundLevel > soundThreshold) {
digitalWrite(ledPin, HIGH);
} else {
digitalWrite(ledPin, LOW);
}
delay(100);
}

电路图展示

成品展示

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