Ai Thinker ESP32-A1S WiFi+BT Audio Development Board

Module Model

ESP32-A1S

Antenna Type

IPEX and PCB

Audio Format

MP3, sWAV, sM4, sAAC, sFLAC, sOGG, sOPUS

Audio Input

Support LINEIN and 2-way MIC input

Audio Output

Support 1 channel headphone output and 1 channel left and right speaker output

Bluetooth Version

4.2

Custom IO Port

14

Operating Temperature (°C)

-20 to 85

Package/Case

SMD-38

Current Dissipation (mA)

350

Input Supply Range (VDC)

3.3

RAM

520KB SRAM +4M PSRAM

Receiving Sensitivity

54 Mbps (3/4 64-QAM): -70dBm
6 Mbps (1/2 BPSK): -88dBm
CCK, 1 Mbps : -90dBm
CCK, 11 Mbps: -85dBm
MCS7 (65 Mbps, 72.2 Mbps): -67dBm

Security

WPA/WPA2/WPA2-Enterprise/WPS

SPI Flash

Default 32Mbit

Transmit Power (dBm)

802.11b: 17±2 dBm (@11Mbps)
802.11g: 14±2 dBm (@54Mbps)
802.11n: 13±2 dBm (@MCS7)

UART Baudrate

Default 115200 bps

Weight (gm)

2.5

Height (mm)

3

Length (mm)

31.60

WIFI

802.11 b/g/n/, Support DLNA protocol