No response from PCA9685 using NODEMCU - Whats wrong with my code?

I've tried some code @Gordon posted a few weeks ago but don't seem to be having any luck with that either :/

var C = {
PCA9685_SUBADR1 : 0x2,
PCA9685_SUBADR2 : 0x3,
PCA9685_SUBADR3 : 0x4,
PCA9685_MODE1 : 0x0,
PCA9685_PRESCALE : 0xFE,
LED0_ON_L : 0x6,
LED0_ON_H : 0x7,
LED0_OFF_L : 0x8,
LED0_OFF_H : 0x9,
ALLLED_ON_L : 0xFA,
ALLLED_ON_H : 0xFB,
ALLLED_OFF_L : 0xFC,
ALLLED_OFF_H : 0xFD
};
function PWMServoDriver(i2c) {
  this.i2c = i2c;
  this.addr = 0x40;  
  this.reset(()=>{
    this.setPWMFreq(1000);
  });
}
PWMServoDriver.prototype.write = function(r,d) {
  this.i2c.writeTo(this.addr,r,d);
};
PWMServoDriver.prototype.read = function(r) {
  this.i2c.writeTo(this.addr,r);
  return this.i2c.readFrom(this.addr,1)[0];
};
PWMServoDriver.prototype.reset = function(callback) {
  this.write(C.PCA9685_MODE1, 0x80);
  if (callback) setTimeout(callback,10);
};
PWMServoDriver.prototype.setPWM = function(num,on,off) {
  this.i2c.writeTo(this.addr,
                   C.LED0_ON_L+4*num,
                   on, on>>8,
                   off,off>>8 );
};
PWMServoDriver.prototype.setPWMFreq = function(freq) {
 // "Sets the PWM frequency"
  var prescaleval = 25000000.0; // 25MHz
  prescaleval /= 4096.0; // 12-bit
  prescaleval /= freq;
  prescaleval -= 1.0;
  prescale = Math.floor(prescaleval + 0.5);

  var data = this.i2c.readFrom(C.PCA9685_MODE1, 1);

  var oldmode = data[0];
  var newmode = oldmode & 0x7F | 0x10; // sleep

  this.i2c.writeTo(C.PCA9685_MODE1, newmode); // go to sleep
  this.i2c.writeTo(C.PCA9685_PRESCALE, Math.floor(prescale));
  this.i2c.writeTo(C.PCA9685_MODE1, oldmode);
  setTimeout(() => {
    return this.i2c.writeTo(C.PCA9685_MODE1, oldmode | 0x80);
  }, 5000);
};
const connect = function(i2c) {
  return new PWMServoDriver(i2c);
};





setTimeout(() => {
var i2c = new I2C(); // software I2C
i2c.setup({sda:NodeMCU.D1, scl:NodeMCU.D2});
var pwm = connect(i2c);
  pwm.setPWMFreq(60);
  var SERVOMIN = 150;
  var SERVOMAX = 600;

  setInterval(() => {
    for (let pulselen = SERVOMIN; pulselen < SERVOMAX; pulselen++) {
      pwm.setPWM(0, 0, pulselen);
    }
  }, 1);

 
}, 200);