以Serial方式，傳送指令給arduino，若收到A，LED亮，收到B，LED暗
PS. 可以把LED換成繼電器(Relay)(可控制電器)
繼電器上的
NC: Normal Close,
C: Common,
NO: Normal Open
code:
int led = 2;
char incomingByte; // for incoming serial data
// the setup routine runs once when you press reset:
void setup() {
Serial.begin(9600);
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
if(Serial.available())
{
incomingByte = Serial.read();
Serial.print(“I received: “);
Serial.println(incomingByte);
if(incomingByte== ‘A’){
digitalWrite(led, HIGH);
}
if(incomingByte== ‘B’){
digitalWrite(led, LOW);
}
}
}
– 在putty上讀取特殊鍵盤值:
int led = 2;
int incomingByte; // for incoming serial data
// the setup routine runs once when you press reset:
void setup() {
Serial.begin(9600);
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
if(Serial.available())
{
incomingByte = Serial.read();
Serial.print(“received!: “);
Serial.println(incomingByte);
if(incomingByte== 65){
Serial.println(“catch up”);
}
if(incomingByte== 66){
Serial.println(“catch down”);
}
if(incomingByte== 67){
Serial.println(“catch right”);
}
if(incomingByte== 68){
Serial.println(“catch left”);
}
}
}
參考:
1. http://www.rebol.com/docs/core23/rebolcore-18.html
