Adafruit ESP32-S3 Manual page 127

LED Location
The red LED (highlighted above in red) is located above the USB jack on the left side
of the board.
Blinking an LED
In the example below, click the Download Project Bundle button below to download
the necessary libraries and the code.py file in a zip file. Extract the contents of the zip
file, open the directory CircuitPython_Templates/blink/ and then click on the directory
that matches the version of CircuitPython you're using and copy the contents of that
directory to your CIRCUITPY drive.
Your CIRCUITPY drive should now look similar to the following image:
# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
# SPDX-License-Identifier: MIT
"""CircuitPython Blink Example - the CircuitPython 'Hello, World!'"""
import time
import board
import digitalio
led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT
while True:
led.value = True
time.sleep(0.5)
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