void setup ()
{
pinMode(4,INPUT);
pinMode(11,OUTPUT);
Serial.begin(9600);
}
void loop()
{
int n =digitalRead(4);
if (n==HIGH)
{
char flag[]="x=10";
Serial.print(flag);
delay(5000);
digitalWrite(11,HIGH);
delay(5000);
digitalWrite(11,LOW);
}
}
接收端我用ARDUINO IDE的串口通信试过 接收到x=10后会动作