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// This is a modified version of the following sketch.// https://editor.p5js.org/aaronsherwood/sketches/q2Pl77SWl//// LED Brightness is controlled using keyboard keys UP and Downlet b = 0; // LED brightnessfunction setup() { createCanvas(600, 360); textAlign(CENTER,CENTER);}function draw() { background(255); if (!serialActive) { console.log("Press Space Bar to select Serial Port"); } else { console.log("Connected"); } // displays current brightness text("Brightness: "+b+"/255",width/2,height/2); }function keyPressed() { // Spacebar to setup the serial connection // Up and Down keys to control LED brightness if (key == " ") { // important to have in order to start the serial connection!! setUpSerial(); } if (keyIsDown(UP_ARROW)) { b = (b>=255) ? 255:b+1; } if (keyIsDown(DOWN_ARROW)) { b = (b<=0) ? 0:b-1; }}function readSerial(data) { //////////////////////////////////// //READ FROM ARDUINO HERE //////////////////////////////////// if (data != null) { // if there is a message from Arduino, continue ////////////////////////////////// //SEND TO ARDUINO HERE (handshake) ////////////////////////////////// let sendToArduino = b + "\n"; writeSerial(sendToArduino); }}//Arudino Code/*int ledOut = 12;void setup() { Serial.begin(9600); pinMode(12, OUTPUT); // start the handshake while (Serial.available() <= 0) { Serial.println("Wait"); // send a starting message delay(300); // wait 1/3 second }}void loop() { // wait for data from p5 before doing something while (Serial.available()) { int brightness = Serial.parseInt(); // receives 1 argument, whether the ball hit the ground if (Serial.read() == '\n') { analogWrite(ledOut, brightness); // turn on LED if the ball is in contact with the ground (1 -> HIGH) turn off LED if not (0, -> LOW) Serial.println("OK"); // Send ok sign } }}*/