LILYGO® TTGO T8 ESP32-S2 LCD Test (circuitpython)

code.py

import digitalio
import board
import busio
import adafruit_rgb_display.st7789 as st7789
from adafruit_rgb_display import color565
import time

miso_pin = board.IO4
mosi_pin = board.IO35
clk_pin = board.IO36
reset_pin = board.IO38
cs_pin = board.IO34
dc_pin = board.IO37
backlight_pin = board.IO33
backlight = digitalio.DigitalInOut(backlight_pin)
backlight.direction = digitalio.Direction.OUTPUT
backlight.value = True
spi = busio.SPI(clock=clk_pin, MOSI=mosi_pin, MISO=miso_pin)
display = st7789.ST7789(spi,
                     width=135,
                     height=240,
                     y_offset=40,
                     x_offset=50,
                     rotation=90,
                     cs=digitalio.DigitalInOut(cs_pin),
                     dc=digitalio.DigitalInOut(dc_pin),
                     rst=digitalio.DigitalInOut(reset_pin))

while True:
    # Clear the display
    display.fill(0)
    # Draw a red pixel in the center.
    print("BLACK")
    # Pause 2 seconds.
    # Clear the screen blue.
    display.fill(color565(255, 0, 255))
    print("Blue")
    # Pause 2 seconds.

I may be wrong but it seems ESP_BUSY / ESP_RESET is used only when you use a ESP32 as a wifi modem with another microcontroller.
For example: https://learn.adafruit.com/circuitpython-on-the-arduino-nano-rp2040-connect/wifi

For reference, here is the pinout of the Lilygo ESP32_S2.

anyone know what pins the "KEY" button is connected to?