Esp32 A1S WiFi+Bluetooth Audio Module V3

The ESP32-A1S WiFi Bluetooth Audio Module V3 is a compact audio module built around the ESP32-A1S model. It combines Wi-Fi, Bluetooth, and audio decoding in one module for electronics and IoT projects. The module includes a built-in audio codec and supports local music playback and recording. It also supports multiple audio input and output options, along with several common audio formats. The ESP32-A1S is designed with integrated peripherals and multiple communication interfaces for development use.

Features of ESP32-A1S WiFi Bluetooth Audio Module V3

• Compact audio module
• Dual-core 32-bit CPU
• Built-in audio codec
• Local music playback support
• Audio recording support
• Multiple audio format support
• Onboard PCB antenna or IPEX antenna
• Firmware upgrade support

Specifications of ESP32-A1S WiFi Bluetooth Audio Module V3

• Model: ESP32-A1S
• Bluetooth: 4.2
• Wi-Fi: 802.11 b/g/n/e/I
• DLNA protocol support
• Audio output: 1 external headphone and 1 left and right external speaker channel
• Audio input: LINEIN and 2 MIC inputs
• IO ports: 14
• Serial port baud rate: 115200 bps
• Antenna mode: onboard PCB
• Power consumption: 350 mA
• Power supply range: 3.3V ± 0.3V DC
• Operating temperature: -20 to 80
• MIC input and line input support
• Onboard antenna or IPEX socket support
• Updated firmware support
• Internal SRAM: 520 KB
• PSRAM: 4M
• Default SPI Flash: 32 Mbit
• Interfaces: UART, SPI, I2C, I2S, PWM, ADC, DAC
• Size: 32 x 19 x 3 mm
• Pin number: 38 Pins
• Operating temperature: -20 to 85
• Storage temperature: -40 to 90
• Operating humidity: < 90% RH
• Wi-Fi: 82.11 b/g/n
• Bluetooth: 4.2 BR/EDR and BLE
• A2DP protocol support
• AVRC protocol support
• Audio format: M4A
• Audio format: AAC
• Audio format: FLAC
• Audio format: OGG
• Audio format: OPUS
• Audio format: MP3
• Audio format: WAV

How to Use ESP32-A1S WiFi Bluetooth Audio Module V3

1. Connect the module to a compatible power supply within the specified range.
2. Use the required communication interface for your project setup.
3. Configure audio input, output, and firmware as needed.

More Info

• Suitable for electronics and IoT development.
• Supports onboard antenna or IPEX antenna use.
• Includes support for secondary development.