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ESP32-A1S Wi-Fi+BT SoC Module V1.0

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ESP32-A1S Module

Overview

ESP32-A1S is an ultra-small, powerful

module. Built-in advanced low-power dual-core

32-bit CPU and Codec ES8388 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 ES8388 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

upports a variety of mainstream compression

nd lossless audio formats, including M4A,

C, FLAC, OGG, OPUS, MP3, WAV, etc.

upports audio input methods such as MIC and

ine-in.

Summary of content (7 pages)

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ESP32-A1S Wi-Fi+BT SoC Module V1.0 ESP32-A1S Module Features - The smallest 802.
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ESP32-A1S Wi-Fi+BT SoC Module V1.0 Product Specifications Module Model ESP32-A1S Package SMD-38 Size 32mm*19mm*3mm SPI Flash Default 32Mbit RAM 520KB SRAM +4M PSRAM Bluetooth Bluetooth 4.2 BR/EDR and BLE standards, support A2DP, AVRC protocol, etc. Wi-Fi 802.
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ESP32-A1S Wi-Fi+BT SoC Module V1.
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ESP32-A1S Wi-Fi+BT SoC Module V1.0 HS2DATA0 ADC2_3/RTCIO10/HSPIHD/S IO4 I/O DDATA1/HS2DATA1 HBIAS O MIC2N I MIC2P I MBIAS O MIC1P I MIC1N I MIC2 control pin MIC2 input MIC1 control pin MIC1 input Strapping pin System startup mode PIN Default Normal operation Download GPIO0 Pull up NC 0 GPIO2 Pull down Irrelevant item 0 Built-in LDO (VDD_SDIO) voltage PIN Default 3.3V 1.8V MTDI/GPIO12 Pull down 0 1 Note: the built-in flash working voltage is 3.
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ESP32-A1S Wi-Fi+BT SoC Module V1.0 Module schematic ESP32 ES8388 I2SPin connection ES8388 ESP32 I2S_SDOUT IO35 I2S_SDIN IO25 I2S_LRCK IO26 I2S_BCLK IO27 I2S_MCLK IO0 ESP32 ES8388 I2C Pin connection ES8388 ESP32 SCL IO32 SDA IO33 Copyright © 2017 Shenzhen Ai-Thinker Technology Co.
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ESP32-A1S specification V1.0 OEM/Integrators Installation Manual Important Notice to OEM integrators INTEGRATION INSTRUCTIONS FCC rules The ESP32-A1S is an WIFI+BT Module Module with frequency hopping using an ASK modulation. It operates on the 2400 ~2500 MHz band and, therefore, is within U.S. FCC part 15.247 standard. Modular installation instruction 1,ESP32-A1S Integrates high-speed GPIO and peripheral interface. Please pay attention to the installation direction (pin direction).
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ESP32-A1S specification V1.0 channel. Additional testing, Part 15 Subpart B disclaimer The module without unintentional-radiator digital circuit, so the module does not required an evaluation by FCC Part 15 Subpart B. The host should be evaluated by the FCC Subpart B.