Have you got a micropython library installed for the reader?
It looks like you set up the connection but you have yet to initialise the reader and tell it to start talking.

@IAMLIUBO Error with the TOF Unit with Alpha7

Connected to Serial Port!

>>> 
>>> import gc
>>> gc.collect()
>>> 
paste mode; Ctrl-C to cancel, Ctrl-D to finish
=== import os, sys, io
=== import M5
=== from M5 import *
=== from hardware import *
=== from unit.tof import ToF
=== from unit import *
=== title0 = None
=== label0 = None
=== i2c0 = None
=== tof_0 = None
=== def setup():
===   global title0, label0, i2c0, tof_0
===   i2c0 = I2C(0, scl=Pin(1), sda=Pin(2), freq=100000)
===   tof_0 = ToF(i2c0)
===   M5.begin()
===   title0 = Widgets.Title("Title", 3, 0xFFFFFF, 0x0000FF, Widgets.FONTS.DejaVu18)
===   label0 = Widgets.Label("Text", 23, 58, 1.0, 0xffffff, 0x222222, Widgets.FONTS.DejaVu18)
===   title0.setText('TOF Unit')
===   label0.setFont(Widgets.FONTS.DejaVu9)
=== def loop():
===   global title0, label0, i2c0, tof_0
===   M5.update()
===   label0.setText(str(((str('Distance: ') + str((tof_0.get_distance()))))))
=== if __name__ == '__main__':
===   try:
===     setup()
===     while True:
===       loop()
===   except (Exception, KeyboardInterrupt) as e:
===     try:
===       from utility import print_error_msg
===       print_error_msg(e)
===     except ImportError:
===       print("please update to latest firmware")
=== 
=== 
=== 
Traceback (most recent call last):
  File "<stdin>", line 28, in <module>
  File "<stdin>", line 23, in loop
  File "driver/vl53l0x.py", line 521, in get_distance
AttributeError: 'VL53L0X' object has no attribute 'range'

A quick guide to using the M5Stack ENVIII unit connected to the AtomS3 using UIFlow 2.0 Alpha 7
https://youtu.be/1G7tyrmuV0M

Combination of error 09 (authentication acknowledgment error) and OS error shown in the command terminal

@themusicman I had this happen to an M5Station but nothing else.

@themusicman This means that something else in OSX is access the USBport via a terminal preventing M5Burner from being able to access the port.

Please make sure only M5Burner is running and that no other terminal software is running.

If I read correctly it means that the MQTT connection to AWS wasn't acknowledge which meant permission was refused.
Have you restarted the ATOM or has AWS changed anything?
Sorry, I haven't used AWS in a while

@IAMLIUBO With the S3's having the internal USB adapter, the S3's can now act as USB drives.
Can we get a UF2 boot loader so that Stamp and Atom S3's can now be programmed like Microbit and Circuitpython devices (USB storage devices.)

@flex What do you mean as you can work direct in micropython without UIFlow using REPL

@themusicman Its a lot harder to soft brick the S3 cores unlike the Core/Core because the S3 have built in USB controllers where as the the Core/Core2 need a dedicated USB adapter to communicate.