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void setup() {
btSerial.begin(9600);
pinMode(10, OUTPUT);
}

void loop() {
if (btSerial.available()) {
char c = btSerial.read();

switch (c) {
case 'a':
light();
break;
case 'd':
motor();
break;
}
}
}
void light(){
int brightness = btSerial.parseInt();
analogWrite(LED, brightness);
}
void motor(){
digitalWrite(10, HIGH);
delay(500);
digitalWrite(10, LOW);
}

지문인식
#include <Adafruit_Fingerprint.h>
#include <SoftwareSerial.h>

int getFingerprintIDez();

SoftwareSerial mySerial(2, 3);

Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

void setup()
{
Serial.begin(9600);
finger.begin(57600);
pinMode(11, OUTPUT);

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