void loop() {
if (Serial.available()) {
digitalWrite(13, HIGH);
}
else {
digitalWrite(13, LOW);
}
// put your main code here, to run repeatedly:
while (Serial.available()) {
delay(3); //delay to allow buffer to fill
if (Serial.available() > 0) {
char c = Serial.read(); //gets one byte from serial buffer
readString += c; //makes the string readString
}
}
// handle commands, if any detected
// if not, repeat what was sent
if (readString != "" && Serial.available() <= 0) {
if (readString == "/hello") { // handle the '/hello'
Serial.println("Hi there, Master!");
}
else { // repeat what was said
Serial.println(readString);
readString = "";
}
}
}
