Product Overview
The ESP32-A1S Audio Kit is an ESP32 development board built for audio: an integrated audio codec, microphone and speaker interfaces, Wi-Fi, Bluetooth and 8MB PSRAM.
It is a strong starting point for internet radios, Bluetooth speakers, voice assistants and other audio-enabled IoT devices.
Key Features
| Feature | Benefit |
|---|---|
| ESP32 dual-core, up to 240 MHz | Handles audio and networking together |
| Integrated audio codec | Playback and recording without extra modules |
| 8MB PSRAM | Audio buffering, streaming and voice processing |
| Wi-Fi + Bluetooth | Streaming and wireless audio |
| Microphone and speaker interfaces | Record and play sound |
| I²S audio | Standard digital audio interface |
Applications
| Application Area | Example Projects |
|---|---|
| Smart speakers | Wi-Fi speakers with cloud control |
| Voice assistants | Wake-word and speech projects |
| Internet radio | Streaming receivers |
| Bluetooth audio | Wireless speakers |
| Education | Learning embedded audio |
Benefits
Audio-ready
The codec and interfaces are on the board, saving wiring and design time.
Memory for audio
8MB PSRAM gives room for buffering and voice processing.
Connected
Wi-Fi and Bluetooth for streaming and control.
Specifications
| Specification | Details |
|---|---|
| Processor | ESP32 dual-core Xtensa LX6, up to 240 MHz |
| Wireless | 2.4 GHz Wi-Fi + Bluetooth |
| PSRAM | 8MB |
| Flash | 4MB (typical) |
| Audio | Integrated codec, I²S |
| USB | Micro-USB |
| Power | 5 V USB; 3.3 V logic |
| Interfaces | UART, I²C, SPI, I²S |
| Programming | Arduino IDE, ESP-IDF, PlatformIO |
Why Choose This Product?
It saves you designing an audio front end — codec, interfaces and memory are all on one ESP32 board.
Beginner Use Cases
- Build an internet radio
- Make a Bluetooth speaker
- Play sounds from a microSD card
- Trigger audio alerts from sensors
Professional Use Cases
- Voice assistant prototypes
- Smart speaker products
- Wireless intercoms
- Voice notification systems
Package Includes
- 1 × ESP32-A1S Audio Development Board
Please Note
- Speakers, microphones and cables may be sold separately depending on the package version
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