Running pumpkin

Arduino

#include "ESP8266WiFi.h"

// WiFi parameters to be configured
//const char* ssid = "RZ2Q8";
//const char* password = "9G9XP2ZBLDYHFQH2";

int photocellPin = 0; 
int photocellValue = 0; 
int motorPin = 12; //GI012

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600); 
  pinMode(motorPin, OUTPUT); 
//  WiFi.begin(ssid, password);
//  while (WiFi.status() != WL_CONNECTED) {
//     delay(500);
//     Serial.print(".");
//  }
//  //print a new line, then print WiFi connected and the IP address
//  Serial.println("");
//  Serial.println("WiFi connected");
//  // Print the IP address
//  Serial.println(WiFi.localIP()); 
}

void loop() {
  // put your main code here, to run repeatedly:
  photocellValue = analogRead(photocellPin); 
  Serial.println(photocellValue); 
  if (photocellValue < 60) {
    digitalWrite(motorPin, HIGH); 
  }
  else{
    digitalWrite(motorPin, LOW); 
  }
}

sketch.js

let serial;
let latestData; 
let lefteye; 
let righteye; 
let nose; 
let mouth; 
let song;
let playing = 0; 

function setup() { 
  createCanvas(700, 700);
  song.loop(); 
  if (latestData < 60) { 
    song.pause(); 
    playing = 0; 
    }
  else {
    if (playing == 0){
    song.play(); 
      playing = 1; 
    }
  }
  serial = new p5.SerialPort();
  serial.open("/dev/cu.usbmodem1410");
  serial.on('data', gotData);
} 

function preload() {
  lefteye = loadImage('images/lefteye.png');
  righteye = loadImage('images/righteye.png');
  nose = loadImage('images/nose.png');
  mouth = loadImage('images/mouth.png');
  song = loadSound('pumpkinsong.mp3');
}

function gotData() {
  let currentString = serial.readLine();
  trim(currentString);
  if (!currentString) return;
  //console.log(currentString);
  latestData = currentString;
}

function draw() { 
  // let v = random(-5,5); 
  // let latestData = v; 
  background(0);   
 
  imageMode(CENTER);
  let mappedVar = map(latestData,30,150,100,0);
  let v = mappedVar;
  image(lefteye,width/2-150+(v/8),height/2-150,v,v);
  image(righteye,width/2+150-(v/8),height/2-150,v,v); 
  image(nose,width/2,height/2-40,v+50,v+50);
  translate(10); 
  rotate(radians(frameCount%10)); 
  image(mouth,width/2+v/2,height/2+100,400,200);
  }

// function mousePressed() {
//   if ( song.isPlaying() ) { 
//     song.pause(); 
//   } else {
//     song.play();
//   }
// }