有關SerialEvent的問題?
這個網頁 http://arduino.cc/en/Tutorial/SerialEvent依照下面的範例做, 在Serial Monitor內隨意輸入一些文字, 為什麼沒有任何顯示?
String inputString = ""; // a string to hold incoming data
boolean stringComplete = false;// whether the string is complete
void setup() {
// initialize serial:
Serial.begin(9600);
// reserve 200 bytes for the inputString:
inputString.reserve(200);
}
void loop() {
// print the string when a newline arrives:
if (stringComplete) {
Serial.println(inputString);
// clear the string:
inputString = "";
stringComplete = false;
}
}
/*
SerialEvent occurs whenever a new data comes in the
hardware serial RX.This routine is run between each
time loop() runs, so using delay inside loop can delay
response.Multiple bytes of data may be available.
*/
void serialEvent() {
while (Serial.available()) {
// get the new byte:
char inChar = (char)Serial.read();
// add it to the inputString:
inputString += inChar;
// if the incoming character is a newline, set a flag
// so the main loop can do something about it:
if (inChar == '\n') {
stringComplete = true;
}
}
}
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