FCC ID: 2ATPO-ESP13U Wi-Fi Module

ESP-13U Specification V1.0 ESP-13USpecification Version V1.0 Copyright2019 Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved I ESP-13U Specification V1.0 Disclaimer and copyright notice The information in this article, including the URL address for reference, is subject to change without prior notice.The Documentation is provided "as is" without any warranty, including any warranties of merchantability, fitness for a particular purpose, or non-infringement, and any warranties mentioned in the proposal, specification or sample. This document is not responsible for any infringement of any patent rights arising out of the use of the information in this document. No license, express or implied, by estoppel or otherwise, is hereby granted. The test data obtained in this paper are all obtained by Ai-Thinker laboratory , and the actual results may be slightly different.The Wi-Fi alliance membership mark is owned by the WiFi alliance. All trade mark names, trademarks and registered trademarks mentioned herein are the property of their respective owners and are hereby declared. The final interpretation right is owned by Shenzhen Ai-Thinker Technology Co., Ltd. The contents of this manual may be changed due to the version upgrade of the product or other reasons. Shenzhen Ai-Thinker Technology Co., Ltd. reserves the right to modify the contents of this manual without any notice. This manual is only used as a guide, and Shenzhen Ai-Thinker Technology Co., Ltd. makes every effort to provide accurate information in this manual, but Shenzhen Ai-Thinker Technology Co., Ltd. does not ensure that the contents of the manual are completely true,, All statements and information in this manual. and the recommendations do not constitute for any warranty, express or implied. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved II Note ESP-13U Specification V1.0 Document development/revision/revocation resume Version Date Revised content Edition Approve V1.0 2020.10.28 First Edition Yuan Nannan Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved III ESP-13U Specification V1.0 CONTENT Product Overview ............................................................................................................................... V 1. Electrical parameters .................................................................................................................. VIII 2. 3. Appearance size ................................................................................................................................... X 4. Pin definition ...................................................................................................................................... XII 5. Schematics ............................................................................................................................................. XIV 6. Design Guidance ............................................................................................................................... XIV 7. Reflow Welding Curve ........................................................................................................................ XVII 8. Package Information .......................................................................................................................... XVIII 9. Contacts ............................................................................................................................................... XVIII Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved IV ESP-13U Specification V1.0 1. Product Overview ESP-13U WiFi module was developed by Ai-Thinker Technology. The core processor of the module ESP8266 integrates the industry-leading Tensilica L106 ultra-low-power 32-bit micro MCU in a smaller package with 16-bit reduced mode. The main frequency supports 80 MHz and 160 MHz, supports RTOS, and integrates Wi-Fi MAC / BB / RF / PA / LNA. ESP-13U WiFi module supports the standard IEEE802.11 b/g/n protocol, a complete TCP/IP protocol stack. Users can use this module to add networking capabilities to existing devices or to build separate network The ESP8266 is a high-performance wireless SOC that offers maximum utility at the lowest cost and unlimited possibilities for embedding WiFi functionality into other systems. controllers. ESP8266 has a complete and self-contained Wi-Fi network function, which can be used independently or run as a slave on other host MCU. When ESP8266 is applied independently, it can be started directly from external flash. The built-in cache memory helps improve system performance and optimizes the storage Another case is that ESP8266 can be used as a Wi-Fi adapter only through SPI / SDIO interface or UART interface, and can be applied to any microcontroller-based design. ESP8266 is powerful on-chip processing and storage capabilities make it possible to integrate sensors and other application-specific equipment through the GPIO port, greatly reducing the cost of early development. system. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved V ESP-13U Specification V1.0 Complete 802.11b / g / n Wi-Fi SoC module The core is Tensilica L106 low power 32-bit MCU, frequency supports 80 MHz and 160 MHz, supports Built-in 10-bit high-precision ADC Support UART/GPIO/ADC/PWM/SPI/I2C Interface Using SMD-18 package Integrated Wi-Fi MAC/ BB/RF/PA/LNA Support multiple sleep modes, the standby power consumption as low as 20uA UART baud speed up to 4Mbps Embedded Lwip protocol stack Support STA/AP/STA+AP operation mode Smart Config (APP) / AirKiss (WeChat) support for Android and IOS Support UART port local upgrade and remote firmware upgradeFOTA General AT commands can be used easy and quickly Support for second development, integration of WindowsLinux development environment Features RTOS Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved VI ESP-13U Specification V1.0 Parameters Figure 1 Main Parameter Model ESP-13U Package SMD-18 Size 28*14*3(0.2)MM Antenna I-PEXCustomers can match their own antenna Frequency range Operating Temperature Storage Temperature Power range supply Support Interface IO 9 2400 ~ 2483.5MHz

-40 ~ 85

-40 ~ 125 , < 90%RH Supply voltage 3.0V ~ 3.6VSupply current>500mA UART/GPIO/ADC/PWM/SPI/I2C UART Rate Support 110 ~ 4608000 bps default 115200 bps Security WEP/WPA-PSK/WPA2-PSK SPI Flash Default 32Mbit Certification FCCCERoHSSRRC Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved VII ESP-13U Specification V1.0 2. Electrical parameters ESP-13U module is electrostatic sensitive equipment, special preventive measures should be taken during handling Electrical characteristics Parameter Condition Min. Typ. Max. Unit Supply voltage VDD 3.0 3.3 3.6 V VIL/VIH I/O VOL/VOH IMAX

-0.3/0.75VIO 0.25VIO/3.6 V N/0.8VIO

0.1VIO/N 12 V mA

WIFI RF performance Description Typ. Operating frequency 2400 - 2483.5 Output power 11n mode, PA output power 11g mode, PA output power 11b mode, PA output power CCK, 1 Mbps CCK, 11 Mbps 6 Mbps (1/2 BPSK) 54 Mbps (3/4 64-QAM) HT20 (MCS7) Receiving sensitivity 132 142 162

-90

-85

-88

-70

-67 Note: The maximum output power cannot more than 18dBm Unit MHz dBm dBm dBm dBm dBm dBm dBm dBm Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved VIII ESP-13U Specification V1.0 Power consumption The following power consumption data are based on a 3.3 V power supply ,25C ambient temperature and measured using an internal voltage regulator. filters. All measurements are completed at the antenna interface without SAW all emission data were measured in the mode of continuous emission based on a 90% duty cycle. Mode Min. Typ. Max. Unit Transfer802.11b, CCK 11Mbps, POUT=+17dBm Transfer802.11g, OFDM 54Mbps, POUT =+15dBm Transfer802.11n, MCS7, POUT

=+13dBm Receive 802.11 b, packet length 1024 bytes ,-80 dBm Receive 802.11 g, packet length 1024 bytes ,-70 dBm Receive 802.11 n, packet length 1024 bytes ,-65 dBm Modem-Sleep Light-Sleep Deep-Sleep Power Off Note

170 140 120 50 56 56 20 2 20 0.5

mA mA mA mA mA mA mA mA uA uA Modem-sleep for applications that require CPU to remain in working condition, such as PWM or I2S applications, etc. And while maintaining Wi-Fi connection, If there's no data transfer, According to the 802.11 standard (e.g. U-APSD), close the Wi-Fi Modem circuit to save electricity. For example, at DTIM3per 300 ms sleep mode andwake up 3 ms to receive AP Beacon packets, the overall average current is about 20mA. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved IX ESP-13U Specification V1.0 Light-sleep used for CPU suspensive applications, like Wi-Fi switch. And while maintaining Wi-Fi connection, If there's no data transfer, could according to the 802.11 standard (e.g. U-APSD), turn off the Wi-Fi Modem circuit and pause the CPU to save electricity. For example, at DTIM3per 300 ms sleep mode andwake up 3 ms to receive AP Beacon packets, the overall average current is about 2mA. Deep-sleep is used for applications that do not need to keep Wi-Fi connected all the time , and just sending a packet after a long time, every 100s to measure temperature , for example, need 0.3 s ~1 s to send data every 300s wake up, and the overall average current is much less than 1mA. The current value of 20A is measured at 2.5V. 3. Appearance size Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved X ESP-13U Specification V1.0 4. A complete Appearance size RF exposure considerations To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna and can not remove. XI Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved ESP-13U Specification V1.0 5. Pin definition ESP-13U has eighteen interfacerefer to following Pin diagram ESP-12F pin diagram Table Pin function definition Function Name 3V3 3.3V power supplyVDDexternal power supply output current recommended above 500 mA EN chip enable end, high level efficient IO14 GPIO14/HSPI_CLK IO12 GPIO12/HSPI_MISO IO13 GPIO13/HSPI_MOSI/UART0_CTS IO15 GPIO15/MTDO/HSPICS/UART0_RTS IO2 GPIO2/UART1_TXD No 1 2 3 4 5 6 7 Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XII ESP-13U Specification V1.0 8 IO0 GPIO0download mode: external pull down operating/running mode: suspension or external pull up 9 13 18 GND Ground IO4 GPIO4 RXD UART0_RXD/GPIO3 TXD UART0_TXD/GPIO1 IO5 GPIO5/IR_R RST Reset TOUT ADC port 10 11 12 14 15 16 17 IO16 GPIO16/ can wake up deep sleep when you connect RST pin Table Description of the ESP series module boot mode Mode CH_PD(EN) RST GPIO15 GPIO0 GPIO2 TXD0 Download mode Operating mode High High Low High High High High High High High Low Low NoteSome of the pins inside the module had been pulled up or pulled downPlease refer to the schematic diagram. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XIII ESP-13U Specification V1.0 6. Schematics 7. Design Guidance 1Application Circuit Note 1Module external circuit, GPIO0 must pull up. VCC,GPIO15 must pull down to GND. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XIV ESP-13U Specification V1.0 2EN and RST pin must pull to VCC. 2Recommended Module Package Design Size Note This is the ESP-13U module package diagram, it is recommended to design the PCB plate according to this diagram, so that the module can work normally on PCB board, When designing the pad, we should pay attention to the fact that the specific module of the pad design on the PCB can not correspond to the internal shrinkage offset of the pad, but the expansion of the PCB pad relative to the module pad does not affect the use of the module. 3Power Supply 1Recommended voltage 5V, Peak:Current over800mA. 2It is recommended to use the LDO power supplyIf DC-DC is used, the ripple is controlled within 30 mV. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XV ESP-13U Specification V1.0 3DC-DC power supply circuit is recommended to reserve the position of the dynamic response capacitor, and the output ripple can be optimized when the load change is large. 4Proposed addition of ESD Devices to 5V Power supply Interface. 4GPIO

(1) At the periphery of the module, some GPIO ports are led out, and a resistance of 10-100 ohms can be connected in series on the IO port for use. This suppresses overshoot and is more stable on both sides. Help for both EMI and ESD.

(2) For the up-and-down drawing of the special io-port, reference will be made to the use description of the specification, which will affect the start-up configuration of the module.

(3) The IO port of the module is 3.3 v. If the main control does not match the io-level of the module, it is necessary to increase the level conversion circuit. (4) If the IO interface is directly connected to the peripheral interface, or the pins and other terminals, it is recommended to reserve the ESD device near the terminal at the IO trace. Level switching circuit Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XVI ESP-13U Specification V1.0 8. Reflow Welding Curve Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XVII ESP-13U Specification V1.0 9. Package Information As shown below,the packing of ESP-13U is in tape/reel. 10. Contacts Company websitehttps://www.ai-thinker.com Developer Wikihttp://wiki.ai-thinker.com Company forumhttp://bbs.ai-thinker.com Sampling purchasinghttps://anxinke.taobao.com Business cooperationsales@aithinker.com Technology supportsupport@aithinker.com Company addressSeventh floor, Building B,xixiang street Baoan District, Shenzhen, China Contacts0755-29162996 Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XVIII ESP-13U Specification V1.0 OEM/Integrators Installation Manual Important Notice to OEM integrators INTEGRATION INSTRUCTIONS FCC rules The ESP-13U is an Wi-Fi Module with frequency hopping. It operates on the 2400

~2500 MHz band and, therefore, is within U.S. FCC part 15.247 standard. Modular installation instruction 1,ESP-13U Integrates high-speed GPIO and peripheral interface. Please pay attention to the installation direction (pin direction). 2,Antenna could not be in no-load state when module is working. During debugging, it is suggested to add 50 ohms load to the antenna port to avoid damage or performance degradation of the module under long-time no-load condition. 3,When the module needs to output 15dBm or more power, it needs a voltage supply of 3.6V or more to achieve the expected output power. 4,When working at full load, it is recommended that the entire bottom surface of the module be attached to the housing or heat dissipation plate, and it is not recommended to conduct heat dissipation through air or screw column heat conduction. 5,UART1 and UART2 are serial ports with the same priority. The port which receives commands returns information. Trace antenna designs Not Applicable Antennas The ESP-13U is an BT Module beams signals and communicates with its antenna, which is FPCB Antenna. The FPCB Antenna gain is 0.5dBi LABEL OF THE END PRODUCT The final end product must be labeled in a visible area with the following Host must Contains FCC ID: 2ATPO-ESP13U. If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to also be available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference and

(2) this device must accept any interference received, including interference that may cause undesired operation. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XIX ESP-13U Specification V1.0 Information on test modes and additional testing requirements Data transfer module demo board can control the EUT work in RF test mode at specified test 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. ATTENTION This device is intended only for OEM integrators under the following conditions:

1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) This device and its antenna(s) must not be colocated with any other transmitters except in accordance with FCC multitransmitter product procedures. Referring to the multitransmitter policy, multiple transmitter(s) and module(s) can be operated simultaneously without C2P. 3) For all products market in US, OEM has to limit the Operating Frequency: 2400 ~2500MHz by supplied firmware programming tool. OEM shall not supply any tool or info to the enduser regarding to Regulatory Domain change. USERS MANUAL OF THE END PRODUCT:

In the user manual of the end product, the end user has to be informed to keep at least 20cm separation with the antenna while this end product is installed and operated. The end user has to be informed that the FCC radiofrequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to also be informed that any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then additional FCC part 15.19 statement is required to be available in the users manual: This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference and

(2) this device must accept any interference received, including interference that may cause undesired operation. FCC WARNING This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generate, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XX ESP-13U Specification V1.0 determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. Copyright 2019 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved XXI

C5266091_X10_Ed.2

< Shenzhen Ai-Thinker Technology Co., Ltd >

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2020/12/11 Subject: Request for Confidentiality FCC ID: 2ATPO-ESP13U To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info No No No No No No No NOTE 1 NOTE 1 No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, 1/1 C5266091_X10_Ed.2 Signature:

Name: guan ning Title: Manager 1/1

C5266091_X8_Ed.1 Letter of Authorization

< Shenzhen Ai-Thinker Technology Co., Ltd >

Company: Shenzhen Ai-Thinker Technology Co., Ltd Address: 410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Gushu Community, Xixiang Street, Baoan District, Shenzhen China Product Name: Wi-Fi Module Model Number(s): ESP-13U Product Description: Wi-Fi Module We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: guan ning Title: Manager Signature of applicant:

Date: 2020/12/10 1/1

Shenzhen Ai-Thinker Technology Co., Ltd Modular Transmitter Approval Request Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD21046 Company name: Shenzhen Ai-Thinker Technology Co., Ltd FCC ID: 2ATPO-ESP13U Gentlemen, In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 Module Equip Auth Guide v02. FCC ID: 2ATPO-ESP13U has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal The module must contain power supply regulation on the module The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) The module must demonstrate compliance in a stand-alone configuration The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labeling requirements) The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee The module must comply with RF exposure requirements Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Yes,the products have a shield, Physical components and tuning capacitor(s) are assembly to the module and located internal to the shield. Yes,The modulehas buffered modulation/data inputs. Yes,The modular transmitter has its own power supply regulation. Yes,The module contains a permanently attached FPCB antenna. Yes, The module compliance in a stand-

alone configuration. Yes. The module has its permanently affixed FCC ID labeland the FCC ID label is laser engraved on the shield. The module complies with all specific rules applicable to the transmitter. Yes. We provided an MPE report to show the module comply with RF exposure requirements. Name: guan ning Title: Manager Date: Dec. 11. 2020 Signature of applicant:

FCC Modular Approval Request Rev 2.0