Description

AtomS3U is a USB flash drive-shaped multifunctional development board featuring the ESP32-S3 chip from Espressif. It has a dual-core Xtensa LX7 processor with a main frequency of 240 MHz and built-in Wi-Fi functionality.

Its interfaces include a USB Type-A port with OTG support, 1 Grove port, a [email protected] header with 4 GPIOs, and built-in peripherals such as 1 PDM microphone, 1 infrared emitter, and 1 programmable RGB LED. It can be used in scenarios such as IoT human-computer interaction, voice input/recognition (STT), and IO control.

Features

• ESP32-S3FN8@240MHz, dual-core Xtensa LX7
• Built-in 2.4 GHz Wi-Fi
• USB Type-A interface with USB OTG support
• Integrated programmable RGB LED and button
• Built-in infrared emitter
• Built-in PDM microphone
• Expandable pins and Grove interface
• Supports UiFlow2, Arduino IDE, ESP-IDF, and PlatformIO development

Specifications

Interface

• USB Type-A interface supports USB OTG and USB Serial/JTAG
• Grove interface uses PORT.A
• [email protected] header provides expandable GPIO access
• Built-in peripherals include PDM microphone, infrared emitter, programmable RGB LED, and button

Applications

• IoT controller
• Voice recording
• Cloud STT recognition
• Human-computer interaction projects
• IO control applications

Product List

• 1 x AtomS3U

Other Content

AtomS3U can be programmed through UiFlow2, Arduino IDE, ESP-IDF, and PlatformIO. Its USB flash drive-shaped form factor and USB Type-A connector make it suitable for compact USB-connected IoT and voice interaction projects.

Resources

• Official Documentation
• AtomS3U Schematics PDF
• SPM1423 Datasheet
• AtomS3U Arduino Test Example
• AtomS3U UiFlow2 Quick Start

FAQ

What chip does AtomS3U use?

AtomS3U uses the ESP32-S3FN8 chip with a dual-core Xtensa LX7 processor running at 240MHz.

Does AtomS3U support Wi-Fi?

Yes. AtomS3U supports 2.4 GHz Wi-Fi.

What USB interface does AtomS3U use?

AtomS3U uses a USB Type-A interface and supports USB OTG and USB Serial/JTAG.

Does AtomS3U include a microphone?

Yes. AtomS3U includes an SPM1423 PDM microphone.

What development platforms are supported?

AtomS3U supports UiFlow2, Arduino IDE, ESP-IDF, and PlatformIO.

What is included in the package?

The package includes 1 x AtomS3U.