안녕하세요
아날로그포트 특성 및 음량소리센서에 유입되는 광대역 주파수 음파 및 전기 노이즈등에 의해 노이즈 값이 발생되게 됩니다.
이 값들은 소프트웨어를 통한 필터처리(평균값 연산등)로 어느정도 보완하여 사용하시면 됩니다.
아트로봇 드림
---------- Original Message ----------
얼마전에 4개를 구입해서 조용한곳에서 시리얼모니터를 하였는데 값이 저렇게 중간에 있는게 계속 주기적으로 발생합니다.. 어떻게하면좋죠?
소스
void setup() {
}
void loop() {
// read the input on analog pin 0:
int sensorValuea = analogRead(A0);
int sensorValueb = analogRead(A2);
int sensorValuec = analogRead(A3);
int sensorValued = analogRead(A4);
Serial.print(sensorValuea);
Serial.print("///");
Serial.print(sensorValueb);
Serial.print("///");
Serial.print(sensorValuec);
Serial.print("///");
Serial.print(sensorValued);
Serial.println("///");
}
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