برد توسعه ESP32-A1S یک
ماژول صوتی چند منظوره می باشد که از ESP32 دو هسته ای به عنوان برد اصلی استفاده می گردد که سرعت فرکانسی آن تا حداکثر 600DMIPS افزایش می یابد. برد توسعه صدا دارایا حافظه PSRAM با ظرفیت 4مگابایتی و چیپ پردازنده codec می باشد که به طور گسترده در تجهیزات IOT مورد استفاده قرار می گیرد.
برد توسعه ESP32-A1S دارای سخت افزاری مجهز به پورت ها و اسلات های میکرو SD می باشد که باعث تسهیل استفاده از این ماژول و ارتباط با پورت های دیگر میشود.
این برد توسعه با پردازنده های Xtensa LX6 سازگاری دارد و مجهز به پورتهای I2C، UART، جک هدفون 3.5 میلی متری، پین هدرهای 2 تایی برای بلندگوها در قسمتهای چپ و راست، پورتهای بلوتوث، پورتهای وایرلس، پورت SPI، پورت USB و هدرهای JTAG می باشد که با ولتاژ 3.3 ولت و پورت میکرو USB 5ولت تغذیه می شوند.
Description:
ESP32-A1S is an ultra-small multi-functional audio module. It is based on Ai-Thinker’s ESP32-A1S with most of the interfaces located at the edge of the development board for easy access, ESP32 with dual-core processor as the main control. The main frequency is up to 600DMIPS. The module is internally equipped with 4M PSRAM and CodeC audio processing chip, which can be widely used for IoT.
As far as hardware goes, the ESP32-Audio-Kit is outfitted with a dual-core Xtensa LX6 CPU (520Kb SRAM, 8Mb of PSRAM), micro SD slot (up to 64Gb of storage), and 802.11 b/g/n Wi-Fi + Bluetooth 4.2 LE. Audio ports are many and include 3.5mm headphone jack, 3.5mm line-in jack, a pair of 2-pin headers for left/right speakers (up to 4Ω/3W output), and a couple of built-in microphones.
Expansion options include headers for I2C, UART, SPI, PWM, and an unpopulated header for JTAG with micro USB port for UART access. It also features six user buttons, as well as 5V/2A via micro USB, and support for 3.7V Li-ion battery via 2-pin header for power options.
The ESP32-Audio-Kit is compatible with Espressif’s ESP-ADF framework, which offers support for Google’s Assistant and Amazon’s Alexa.
Application:
various IoT applications
suitable for home smart devices
smart Audio
story machine solutions
Features:
Using low-power dual-core 32-bit CPU, can be used as application processor
The main frequency is up to 240MHz and the computing capacity is up to 600 DMIPS
Built-in 520 KB SRAM, 8M PSRAM
Supports UART / SPI / I2C / PWM and other interfaces
Headphone port: insert 3.5mm headphone jack, support left and right channel output
Left and right channel speakers: support 4Ω 3W speaker output, and support dual channel output
Two analog microphones, which are used as audio input respectively; support headset microphone input
Support 3.7V lithium battery input; support 5V 2A power input, support simultaneous lithium battery charging
Support 64G SD card read and write
Support multiple sleep modes
Embedded Lwip and FreeRTOS
Support STA / AP / STA + AP working mode
Support Smart Config / AirKiss
Specifications:
CPU: Xtensa® 32-bit LX6 dual-core processor,Summary computing power up to 600 DMIPS
ROM: 520KB SRAM RTC 16 KB SRAM
IO Port: 10
SPI Flash: Default 32Mbit
RAM: 520KB SRAM+8M PSRAM
Support interface: URAT,SPI,I2C,PWM
UART Baudrate: Default 115200 bps
Audio Output: Support 1 channel headphone output and 1 channel left and right speaker output
Audio Input: Support LINEIN and 2-way MIC input
Spectrum range: 2412~2484MHz
WiFi 802.11: b/g/n/d/e/i/k/r (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4μs guard interval 2.4~2.5GHz
Bluetooth: Bluetooth 4.2 BR/EDR and BLE standards, NZIF receiver with -98 dBm sensitivity, support AFH (Adaptive Frequency Hopping), support CVSD and SBC audio formats