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Summary of Contents for Ai-Thinker ESP32-A1S
- Page 1 ESP32-A1S Specification V2.3 ESP32-A1S Specification Version V2.3 Copyright ©2021 Page 1 of 20 Copyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
- Page 2 The test data obtained in this article are all obtained by Ai-Thinker's laboratory tests, and the actual results may be slightly different.
- Page 3 Formulation / Revision / Abolition of CV Version Date Formulation / Revision Make Verify V2.2 2019.11.01 First development Yiji Xie Ning Guan Peihong V2.3 2021.06.09 Update data Ning Guan Page 3 of 20 Copyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
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Page 4: Table Of Contents
3.Dimensions..........................11 4.PIN definition......................... 12 5.Schematic diagram.......................14 6.Design guide......................... 17 6.1. Antenna layout requirements.................. 17 6.2. Power supply......................17 7.Reflow solder curve......................19 8.Packaging....................错误！未定义书签。 9.Contact us..........................20 Page 4 of 20 Copyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... -
Page 5: Product Overview
ESP32-A1S Specification V2.3 1. Product overview ESP32-A1S is a Wi-Fi+BT voice module developed by Shenzhen Anxinke Technology Co., Ltd. The module's core processor chip ESP32 integrates 2.4 GHz Wi-Fi and Bluetooth dual mode, and the module also integrates ES8388 voice codec chip, PSRAM and Flash chip. -
Page 6: Features
Integrate 64Mb PSRAM Using SMD-38 package General AT commands can be used quickly Support secondary development, integrated Windows and Linux development environment Page 6 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... -
Page 7: Main Parameters
Bluetooth 4.2 BR/EDR and BLE standards Safety WEP/WPA-PSK/WPA2-PSK 2.1.Electrical parameters The ESP32-A1S module is an electrostatic sensitive device, and special precautions must be taken when handling it. Figure 2 ESD Anti-static mark Page 7 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... -
Page 8: Electrical Characteristics
Receiving sensitivity CCK, 1 Mbps ≤-96 CCK, 11 Mbps ≤-88 6 Mbps (1/2 BPSK) ≤-92 54 Mbps (3/4 64-QAM) ≤-74 HT20 (MCS7) ≤-72 HT40 (MCS7) ≤-70 Page 8 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... -
Page 9: Bluetooth（Br）Rf Performance
Typical 8±2 Receiving sensitivity Bluetooth low energy 1M Sensitivity@30.8%PER ≤-94 2.7. Power consumption The following power consumption data is based on 3.3V power supply, 25°C Page 9 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... - Page 10 1024 bytes Receive 802.11g, the packet length is 1024 bytes Receive 802.11n, the packet length is 1024 bytes Modem-Sleep① Light-Sleep② μA Deep-Sleep③ μA Power Off μA Page 10 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
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Page 11: Dimensions
ESP32-A1S Specification V2.3 3. Dimensions Figure 3 Module appearance diagram (rendered diagram is for reference only, the actual product shall prevail) Figure 4 Module size chart Page 11 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... -
Page 12: Pin Definition
ESP32-A1S Specification V2.3 4. PIN definition 图 5 管脚示意图 The ESP32-A1S module has a total of 38 interfaces. As shown in the pin diagram, the pin function definition table is the interface definition. List 8 ESP32-A1S Pin function definition table... - Page 13 IO23 GPIO23, HS1_STROBE, VSPID IO19 GPIO19, VSPIQ, U0CTS, EMAC_TXD0 IO22 GPIO22, VSPIWP, U0RTS, EMAC_TXD1 IO21 GPIO21, VSPIHD, EMAC_TX_EN Enable the chip, high level is effective. Page 13 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
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Page 14: Schematic Diagram
GPIO 2 drop down Irrelevant Note: Some pins have been internally pulled up, please refer to the schematic 5. Schematic diagram 5.1. Module schematic Page 14 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... - Page 15 ESP32-A1S Specification V2.3 Figure 6 Audio part schematic Figure 7 Schematic diagram of the main chip Page 15 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
- Page 16 ESP32-A1S Specification V2.3 5.2. Application circuit diagram Figure 8 Application circuit diagram Page 16 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
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Page 17: Design Guide
DC-DC power supply circuit to optimize the output ripple when the load changes greatly. （4）、It is recommended to add ESD devices to the 3.3V power interface. Page 17 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... - Page 18 （4）、If the IO port is directly connected to a peripheral interface or terminal such as a header, it is recommended to reserve an ESD device near the terminal on the IO trace. Figure 11 Level conversion circuit Page 18 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved...
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Page 19: Reflow Solder Curve
ESP32-A1S Specification V2.3 7. Reflow solder curve Figure 12 Reflow solder curve Page 19 of 20 opyright © 2021 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved... -
Page 20: Packaging
ESP32-A1S Specification V2.3 8. Packaging As shown in the figure below, the packaging of ESP32-A1S is braid. Figure 13 tape package 9. Contact us Website：https://www.ai-thinker.com Development DOCS：https://docs.ai-thinker.com Forum：http://bbs.ai-thinker.com Sample order：https://ai-thinker.en.alibaba.com/ Business：overseas@aithinker.com Support：support@aithinker.com Add：Room410, Building C, Huafeng Intelligence Innovation Port, Gushu, Xixiang, Baoan District, Shenzhen China 518126 Tel：0755-29162996...
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