ESP32-A1S is an ultra-small, powerful module. Built-in advanced low-power dual-core 32-bit CPU and Codec AC101 audio decoding chip, can be widely used in various IoT applications, suitable for home smart devices, smart Audio, story machine solutions, etc., are the ideal solution for IoT applications.

ESP32-A1S internal circuit is highly integrated, supports a variety of peripherals, can support secondary development, and quickly realize product differentiation.

ESP32-A1S adopts SMD package to realize rapid production of products and provide customers with high-reliability connection mode. It is especially suitable for modern, large-scale, low-cost production methods, and is convenient for various IoT hardware terminal applications.

Features

• The smallest 802.11b/g/n Wi-Fi BT SoC Module 

• Low power 32-bit CPU,can also serve the application processor

• Built-in AC101 Codec audio decoding chip, can support playing music and recording

• Built-in 520 KB SRAM, external 4MPSRAM

• Supports UART/SPI/I2C/PWM/ADC/DAC

• Support for firmware upgrade (FOTA) 

• Antenna supports on-board antenna or IPEX block output

• Supports a variety of mainstream compression and lossless audio formats, including M4A, AAC, FLAC, OGG, OPUS, MP3, WAV, etc.

• Supports audio input methods such as MIC and Line-in.