1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | const int ledPin = 9; // the pin that the LED is attached to void setup() { // initialize the serial communication: Serial.begin(9600); // initialize the ledPin as an output: pinMode(ledPin, OUTPUT); } void loop() { byte brightness; // check if data has been sent from the computer: if (Serial.available()) { // read the most recent byte (which will be from 0 to 255): brightness = Serial.read(); // set the brightness of the LED: analogWrite(ledPin, brightness); } } |
3. 프로세싱!!
프로세싱에 아래의 코드를 넣는다
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | import processing.serial.*; Serial port; void setup() { size(256, 150); println("Available serial ports:"); println(Serial.list()); // Uses the first port in this list (number 0). Change this to // select the port corresponding to your Arduino board. The last // parameter (e.g. 9600) is the speed of the communication. It // has to correspond to the value passed to Serial.begin() in your // Arduino sketch. port = new Serial(this, Serial.list()[0], 9600); // If you know the name of the port used by the Arduino board, you // can specify it directly like this. //port = new Serial(this, "COM1", 9600); } void draw() { // draw a gradient from black to white for (int i = 0; i < 256; i++) { stroke(i); line(i, 0, i, 150); } // write the current X-position of the mouse to the serial port as // a single byte port.write(mouseX); } |
