在arduino中设计实验，当用户输入字母'O'时LED灯亮，当用户输入'C'时LED灯熄灭，输入其他字符时LED灯闪烁

在arduino中设计实验，当用户输入字母'O'时LED灯亮，当用户输入'C'时LED灯熄灭，输入其他字符时LED灯闪烁

int ledPin = 12;
bool flashLed = false, ledON = true;

void setup() {
// put your setup code here, to run once:
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, LOW);
Serial.begin(9600);
}

void loop() {
// put your main code here, to run repeatedly:
if (Serial.available() > 0)
{
char xx = Serial.read();

switch (xx)
{
case 'a':
case 'A':
digitalWrite(ledPin, HIGH);
flashLed = false;
break;
case 'c':
case 'C':
digitalWrite(ledPin, LOW);
flashLed = false;
break;
case '\n'://屏蔽串口中收到回车或换行符，什么也不做
case '\r':

break;
default://其他的，e799bee5baa6e4b893e5b19e31333361326264启动闪烁
flashLed = true;
}

}
if (flashLed == true)
{
if (ledON) {
digitalWrite(ledPin, HIGH);
ledON = false;
}
else
{
digitalWrite(ledPin, LOW);
ledON = true;
}
delay(500);
}
}