https://srituhobby.com/processing-ide-with-led-on-and-off/
https://www.youtube.com/watch?v=XFEWhu9dqBg
Arduino IDE Sketch
/*LED on and off using the processing IDE.
created by the SriTu Tech team.
Read the code below and use it for any of your creation
*/
void setup() {
Serial.begin(9600);//enable serial communication
pinMode(2, OUTPUT);//define arduino pin
}
void loop() {
if (Serial.available() > 0) {//check serial value
char led = Serial.read();//read serial value
if (led == '1') {//check serial read
digitalWrite(2, HIGH);//LED on
} else if (led == '0') {//check serial read
digitalWrite(2, LOW);//LED off
}
}
}Processing IDE Sketch
/*LED on and off using the processing IDE.
The second time uploads this code.
created by the SriTu Tech team.
Read the code below and use it for any of your creation
*/
import processing.serial.*;//import serial communicate library
Serial myPort;//create serial object
int circleOneX, circleOneY; // Position of button one
int circleX, circleY; // Position of button two
int circleOnesize = 90; // Diameter button one
int circleSize = 90; // Diameter of button two
color currentColor, baseColor;//color variable
color circleOnecolor, circleColor;//color variable
color circleOneHighlight, circleHighlight;//color variable
boolean circleOneOver = false;
boolean circleOver = false;
PFont f;//font type
void setup() {
size(300, 200);//screen size
circleOnecolor = color(0);//set colors to variable
circleOneHighlight = color(51);//set colors to variable
circleColor = color(255);//set colors to variable
circleHighlight = color(204);//set colors to variable
baseColor = color(102);//set colors to variable
currentColor = baseColor;
circleX = width/2+circleSize/2+25;
circleY = height/2;
circleOneX = width/2-circleOnesize+15;
circleOneY = height/2;
printArray(PFont.list());//print fonts list your computer
f = createFont("Ebrima Bold", 20);//Enter your font name
textFont(f);
String portName = "COM4";//Enter your COM port
myPort = new Serial(this, portName, 9600);//select first port
print(portName);
}
void draw() {
update(mouseX, mouseY);//main method
background(currentColor);//background color
if (circleOneOver) {
fill(circleOneHighlight);
} else {
fill(circleOnecolor);
}
stroke(255);
ellipse(circleOneX, circleOneY, circleOnesize, circleOnesize);//drow circle one
if (circleOver) {
fill(circleHighlight);
} else {
fill(circleColor);
}
stroke(0);
ellipse(circleX, circleY, circleSize, circleSize);//drow circle two
textAlign(LEFT);
fill(255);//black color
text("LED OFF", 37, 110);//display text
textAlign(RIGHT);
fill(0);//white color
text("LED ON", 255, 110);//display text
}
void update(int x, int y) {
if ( overCircle(circleX, circleY, circleSize) ) {
circleOver = true;
circleOneOver = false;
} else if (circleOneOver(circleOneX, circleOneY, circleOnesize) ) {
circleOneOver = true;
circleOver = false;
} else {
circleOver = circleOneOver = false;
}
}
void mousePressed() {
if (circleOver) {
currentColor = circleColor;
myPort.write('1');//send value one
print("LED on");
}
if (circleOneOver) {
currentColor = circleOnecolor;
myPort.write('0');//send value ziro
print("LED off");
}
}
boolean circleOneOver(int x, int y, int diameter) {
float disX = x - mouseX;
float disY = y - mouseY;
if (sqrt(sq(disX) + sq(disY)) < diameter/2 ) {
return true;
} else {
return false;
}
}
boolean overCircle(int x, int y, int diameter) {
float disX = x - mouseX;
float disY = y - mouseY;
if (sqrt(sq(disX) + sq(disY)) < diameter/2 ) {
return true;
} else {
return false;
}
}