const int potPin = A0;
int potVal = 0;
 
void setup() {
  Serial.begin(9600);
}
 
void loop() {  
  potVal = analogRead(potPin);
  Serial.println(potVal);
  delay(10);
}

let serial;

function setup() {
  createCanvas(400, 400);

  serial = new p5.SerialPort();
  serial.open('/dev/tty.usbmodem21401');
  serial.on('data', gotData);
}

function gotData() {
  let currentString = serial.readLine(); // store the data in a variable
  trim(currentString); // get rid of whitespace
  if (!currentString) return; // if theaaare's nothing in there, ignore it
  console.log(currentString); // print it out
  latestData = currentString; // save it to the global variable
}

function draw() {
  background(220);
  ellipse(width/2,height/2,latestData/3);
}

IMG_7961.MOV

void setup() {
  Serial.begin(9600);
  pinMode(5, OUTPUT);
}
 
void loop() {  

  if (Serial.available() > 0) { // if there's serial data available
    int inByte = Serial.read();   // read it
    Serial.write(inByte);         // send it back out as raw binary data
    analogWrite(5, inByte);       // use it to set the LED brightness
  }
}

let serial;
// let latestData = "waiting for data";
let inData;                            // for incoming serial data
let outByte = 0; 

function setup() {
  createCanvas(400, 400);

  serial = new p5.SerialPort();
  serial.open('/dev/tty.usbmodem21401');
  }

function keyPressed() {
  if (key >= 0 && key <= 9) {
    // if the user presses 0 through 9
    outByte = byte(key * 25); // map the key to a range from 0 to 225
    serial.write(outByte); // send it out the serial port
    text(key,width/2,height/2);
  }

}

function draw() {
  background(220);
text(key,width/2,height/2);
  textSize(40)
}

IMG_7964.MOV

in-class

madgwick

https://itp.nyu.edu/physcomp/labs/lab-serial-imu-output-to-p5-js/