Adafruit ESP32-S3 User Manual

To enable Web Serial in Chrome versions
78 through 88:
Visit chrome://flagsfrom within Chrome.
Find and enable theExperimental Web
Platform features
Restart Chrome
TheFlash an Arduino Sketch Method
This section outlines flashing an Arduino sketch onto your ESP32-S2/S3 board, which
automatically installs the UF2 bootloader as well.
Arduino IDE Setup
If you don't already have the Arduino IDE installed, the first thing you will need to do
is to download the latest release of the Arduino IDE. ESP32-S2/S3 requires version
1.8or higher. Click the link to download the latest.
Arduino IDE Download
After you have downloaded and installedthe latest version of Arduino IDE, you will
need to start the IDEand navigate tothePreferencesmenu. You can access it from
theFile > Preferences menu inWindowsorLinux, or theArduino > Preferences menu
onOS X.
The Preferences window will open.
In the Additional Boards Manager URLs field, you'll want to add a new URL. The list of
URLs is comma separated, andyou will only have to add eachURL once. The URLs
point to index files that the Board Manager uses to build the list of available &
installed boards.
Copy the following URL.
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Adafruit ESP32-S3 Specifications

General

Microcontroller/Chip	ESP32-S3
Clock Speed	up to 240 MHz
RAM	512 KB
Flash Memory	8MB
GPIO Pins	45
DAC Channels	2
Operating Voltage	3.3 V
Input Voltage	5 V
I2C	2
I2S	2
CPU	Xtensa LX7 dual-core
Wi-Fi	802.11 b/g/n
Bluetooth	Bluetooth 5.0