AtomS3U
SKU:K125
Description
The AtomS3U is a multifunctional development board in a USB flash drive form factor, featuring the Espressif ESP32-S3 main controller with a dual-core Xtensa LX7 processor running at 240MHz. It comes with built-in WiFi functionality. The board includes a USB-A port (with OTG support), one Grove port, and a 6-pin 2.54mm header (including 4 GPIOs). Its peripherals include a PDM microphone, an infrared transmitter, and a programmable RGB-LED. This product is suitable for IoT human-computer interaction, voice input/recognition (STT), IO control, and other scenarios.
Features
- ESP32-S3FN8@240Mhz,Xtensa LX7,WIFI,OTG,CDC
- Integrated programmable RGB LEDs and buttons
- Built-in infrared emitter
- Expandable pin interface with GROVE
- Development platform: MicroPython,Arduino,UIFlow
Includes
Applications
- IoT controllers
- Voice recording, cloud STT recognition
Specification
| Resources | Parameters |
|---|
| MCU | ESP32-S3FN8@Xtensa LX7,WIFI,OTG,CDC |
| Microphone | SPM1423 |
| interface | USB-A |
| Grove interface | PORTA |
| 2.54-6P interface | GND/VIN_5V/G14/G17/G42/G40 |
| Microphone sensitivity | 94dB SPL@1KHz typical: -22dBFS |
| Microphone signal-to-noise ratio | 94dB SPL@1KHz, A-weighted Typical: 61.4dB |
| Support for entering sound frequencies | 100Hz ~ 10KHz |
| Supports PDM clock frequency | 1.0 ~ 3.25MHz |
| RGB | WS2812 |
| Product Size | 52 * 20 * 10mm |
| Package Size | 68 * 21 * 11mm |
| Product Weight | 8.4g |
| Package Weight | 10.6g |
PinMap
| ATOM S3U | G38 | G39 | 3.3V | GND |
|---|
| SPM1423 | MIC_CLK | MIC_DATA | VCC | GND |
| ATOM S3U | G12 | G35 | G41 |
|---|
| IR | TX | / | / |
| WS2812 | / | DIN | / |
| BUTTON | / | / | SW |
| ATOM S3U | G1 | G2 | 5V | GND |
|---|
| PORT-A(RED) | SCL | SDA | VCC | GND |
| PORT-B(Black) | DAC | ADC | VCC | GND |
| PORT-C(Blue) | RX | TX | VCC | GND |
| ATOM S3U | GND | VIN_5V | G14 | G17 | G42 | G40 |
|---|
Schematic
Module Size
Examples
Arduino
