Adafruit ESP32-S3 Manual page 171

One Capacitive Touch Pin
The first example covered here will show you how to read touches on one pin.
Pin Location
Pin A4 is located towards the middle of the board along the bottom row of pins.
Reading Touch on the Pin
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 Adafruit_ESP32-S3_TFT_Feather/capacitive_touch_one_pin/
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:
Then, connect to the serial
# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
# SPDX-License-Identifier: MIT
"""
CircuitPython Capacitive Touch Pin Example - Print to the serial console when one
©Adafruit Industries
console ().
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