Ai-Thinker AIM62 Development Board User Manual

Ai-Thinker AIM62 Development Board

Product Information

Specifications

• Model: Ai-M62-12F
• Package Size: Not specified
• Antenna Frequency: Not specified
• Operating Temperature: -40°C to 85°C
• Storage Temperature: -40°C to 125°C, < 90%RH
• Power Supply: 2.97V to 3.6V
• Power Supply Current: 500mA
• Interface: Audio Codec, USB2.0, SDU, SD/MMC(SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPDC, ACOMP, GPIO, etc.
• IO UART Rate: Default 115200 bps
• Security Flash: Default 4MByte, Support expansion

Product Usage Instructions

Product Overview
The Ai-M62-12F is a product that features a main chip architecture as shown in Figure 1.

Characteristics
The Ai-M62-12F operates in a wide temperature range from -40°C to 85°C and can be stored in temperatures ranging from -40°C to 125°C with a relative humidity of less than 90%. It requires a power supply voltage between 2.97V and 3.6V with a power supply current of 500mA. It supports various interfaces such as Audio Codec, USB2.0, SDU, SD/MMC(SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPDC, ACOMP, GPIO, etc.

Electrostatic Requirements
The Ai-M62-12F is an electrostatic sensitive equipment and special precautions need to be taken when handling it. Refer to Figure 2 for ESD preventive measures.

Electrical Characteristics
The electrical characteristics of the Ai-M62-12F are as follows:

Wi-Fi Radio Frequency Performance
The Wi-Fi radio frequency performance of the Ai-M62-12F is as follows:

BLE RF Performance
The BLE radio frequency performance of the Ai-M62-12F is as follows:

Power Consumption
The power consumption of the Ai-M62-12F in various modes is as follows:

FAQ

• Q: What is the operating temperature range of the Ai-M62-12F?
  A: The Ai-M62-12F operates in a temperature range from -40°C to 85°C.

• Q: What is the storage temperature range of the Ai-M62-12F?
  A: The Ai-M62-12F can be stored in temperatures ranging from -40°C to 125°C with a relative humidity of less than 90%.

• Q: What is the power supply voltage for the Ai-M62-12F?
  A: The power supply voltage for the Ai-M62-12F is between 2.97V and 3.6V.

• Q: What interfaces are supported by the Ai-M62-12F?
  A: The Ai-M62-12F supports various interfaces such as Audio Codec, USB2.0, SDU, SD/MMC(SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPDC, ACOMP, GPIO, etc.

Document resume

Version| Date| Develop/revise content| Edition| Approve
---|---|---|---|---
V1.0.0| 2023.03.23| First Edition| NanNan Yuan| NingGuan
| | | |
| | | |
| | | |

Product overview

Ai-M62-12F is a Wi-Fi 6 + BLE5.3 module developed by Shenzhen Ai-Thinker Technology Co., Ltd. The module is equipped with BL616 chip as the core processor, supports Wi-Fi 802.11b/g/n/ax protocol and BLE protocol, and supports Thread protocol. The BL616 system includes a low-power 32-bit RISC-V CPU with floating-point unit, DSP unit, cache and memory, with a maximum dominant frequency of 320M. The Ai-M62-12F module has rich peripheral interfaces, including Audio Codec, USB2.0, SDU, SD/MMC(SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPDC, ACOMP, GPIO, etc. It can be widely used in audio and video multimedia, Internet of Things (IoT), mobile devices, wearable electronic devices, smart homes and other fields. The Ai-M62-12F module Sec Eng module supports AES/SHA/PKA/TRNG and other functions, supports image encryption and signature startup, and meets various security application requirements in the Internet of Things field.

Characteristics

• SMD-22 package
• Supports 2.4GHz operating frequency band
• Support IEEE 802.11 B/g/n/ax
• Support BLE5.3
• Support Thread
• Support Wi-Fi/BLE/Thread coexistence
• Wi-Fi security support WPS/WEP/WPA/WPA2/WPA3
• Supports 20/40MHz bandwidth, 1T1R, maximum rate 229.4 Mbps
• Support STA, SoftAP, STA + SoftAP and sniffer modes
• 32-bit RISC-V CPU with FPU and DSP, with a maximum dominant frequency of 320M
• 532KB SRAM,128KB ROM,4Kb eFuse
• Support Audio Codec, USB2.0, SDU, SD/MMC(SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPDC, ACOMP, GPIO, etc.
• Integrated RF Balun, PA/LNA
• Support for safe startup and safe debugging
• Support XIP QSPI On-The-Fly AES decryption (OTFAD)
• Support TrustZone
• Support AES-CBC/CCM/GCM/XTS mode
• Support MD5, SHA-1/224/256/384/512
• TRNG (True Random Number Generator) is supported
• Support PKA (Public Key Accelerator) for RSA/ECC
• BLE-enabled Wi-Fi fast connection
• Universal AT command can be used quickly.
• Supports secondary development and integrates Windows and Linux development environments

Main parameters

Table 1 Description of Main Parameters

Operating

temperature

| -40 ℃ ~ 85 ℃
Storage temperature| -40℃ ~ 125℃, < 90%RH
Power supply| The power supply voltage is 2.97V ~ 3.6V, and the power supply current is

≥ 500mA.

Interface

| Audio Codec, USB2.0, SDU, SD/MMC(SDH), SPI, UART, I2C, I2S, PWM, GPDAC, GPDC, ACOMP, GPIO, etc.
IO| 15
UART rate| Default 115200 bps
Security| WPS/WEP/WPA/WPA2/WPA3
Flash| Default 4MByte, Support expansion

Electrostatic requirements
Ai-M62-12F are electrostatic sensitive equipment, special precautions need to be taken when handling.

Electrical characteristics
Table 2 Table of Electrical Characteristics

Parameters| Conditio| Min.| Typical value| Max.| Unit
---|---|---|---|---|---
Supply voltage| VDD| 2.97| 3.3| 3.6| V

I /O

| VIL| –| –| –| 0.3VDDIO| V
VIH| –| 0.7VDDIO| –| –| V
VOL| –| –| 0.1VDDIO| –| V
VOH| –| –| 0.9VDDIO| –| V
IMAX| –| –| –| 15| mA

Wi-Fi radio frequency performance
Table 3 Wi-Fi RF Performance Table

Output power
Mode| Min.| Typical| Max.| Unit
11ax mode HE40,PA output power| –| 16| –| dBm
11ax mode HE20,PA output power| –| 17| –| dBm
11n mode HT40,PA output power| –| 19| –| dBm
11n mode HT20,PA output power| –| 19| –| dBm
In 11g mode, PA output power| –| 19| –| dBm
In 11b mode, PA output power| –| 22| –| dBm
Receiving sensitivity
Mode| Min.| Typical| Max.| Unit
11b,1 Mbps| –| -98| –| dBm
11b,11 Mbps| –| -90| –| dBm
11g,6 Mbps| –| -93| –| dBm
11g,54 Mbps| –| -76| –| dBm
11n,HT20 (MCS7)| –| -73| –| dBm
11ax,HE20 (MCS9)| –| -70| –| dBm
11ax,HE40 (MCS9)| –| -67| –| dBm

BLE RF performance
Table 4 BLE RF Performance Table

Output power
Mode| Min.| Typical value| Max.| Unit
1Mbps| –| 10| 15| dBm
2Mbps| –| 10| 15| dBm
Receiving sensitivity
Mode| Min.| Typical value| Max.| Unit
1Mbps sensitivity @ 30.8%PER| –| -99| –| dBm
2Mbps sensitivity @ 30.8%PER| –| -97| –| dBm

Power consumption
The following power consumption data is based on a 3.3V power supply and measured at an ambient temperature of 25°C.

• The POUT power for all transmit modes is the measured value at the antenna interface.
• All transmission data are measured in the continuous transmission mode based on a duty cycle of 100%.

Table 5 Power consumption table

Appearance size

Pin definition
A total of 22 pins are connected to the Ai-M62-12F module, as shown in the pin diagram, the pin function definition table is an interface definition.

Table 6 Pin Function Definition Table

which is active at low level. If you need to use it, please contact Ai-Thinker
2| IO20| GPIO20/SPI_SS/I2S_BCLK/I2C_SCL/ADC_CH0/PWM0
3| EN/NC| By default, it is enabled as a chip, active at high level, and cannot be used at the same time as RST

4

| ****

IO17/NC

| Available by default, the IO port is shared with the 32.768KHz crystal output PIN pin inside the module. If the module of the internal patch 32.768KHz crystal oscillator is customized, the IO is in NC state.

GPIO17/SPI_SCLK/I2S_FS/I2C_SDA/XTAL_32K_OUT/PWM0

5| IO10/29| The default is IO29,GPIO29/SPI_SCLK/I2S_FS/I2C_SDA/PWM0
6| IO0| GPIO0/SPI_SS/I2S_BCLK/I2C_SCL/ADC_CH9/PWM0
7| IO1| GPIO1/SPI_SCLK/I2S_FS/I2C_SDA/ADC_CH8/PWM0
8| VCC| 3.3V power supply; The output current of external power supply is recommended to be above 500mA.

9

| ****

IO15

| Available by default, this IO port is shared with Flash in the module. If a module with external Flash is customized, the IO is not available. For use, please contact Ai-Thinker.

GPIO15/SPI_MOSI/I2S_DO/I2S_RCLK_O/I2C_SDA/PWM0

10

| ****

IO14

| Available by default, this IO port is shared with Flash in the module. If a module with external Flash is customized, the IO is not available. For use, please contact Ai-Thinker.

GPIO14/SPI_MISO/I2S_DI/I2S_RCLK_O/I2C_SCL/ADC_CH4/PWM0

11

| ****

IO11

| Available by default, this IO port is shared with Flash in the module. If a module with external Flash is customized, the IO is not available. For use, please contact Ai-Thinker.

GPIO11/SPI_MOSI/I2S_DO/I2S_RCLK_O/I2C_SDA/PWM0

12

| ****

IO12

| Available by default, this IO port is shared with Flash in the module. If a module with external Flash is customized, the IO is not available. For use, please contact Ai-Thinker.

GPIO12/SPI_SS/I2S_BCLK/I2C_SCL/ADC_CH6/PWM0

13| DP| USB_DP
14| DM| USB_DM
15| GND| Grounding

16

| ****

IO13/28

| The default is IO28,GPIO28/SPI_SS/I2S_BCLK/I2C_SCL/ADC_CH11/PWM0
17| IO3| GPIO3/SPI_MOSI/I2S_DO/I2S_RCLK_O/I2C_SDA/ADC_CH3/PWM0
---|---|---

18

| ****

IO2/NC

| The default NC is not available. If you need to use it, please contact Ai- Thinker. If elicited, support

Bootstrap/GPIO2/SPI_MISO/I2S_DI/I2S_RCLK_O/I2C_SCL/ADC_CH

2/PWM0

19| IO30| GPIO30/SPI_MISO/I2S_DI/I2S_RCLK_O/I2C_SCL/PWM0
20| IO27| GPIO27/SPI_MOSI/I2S_DO/I2S_RCLK_O/I2C_SDA/ADC_CH10/PW M0
21| RXD| RXD/GPIO22/SPI_MISO/I2S_DI/I2S_RCLK_O/I2C_SCL/PWM0
22| TXD| TXD/GPIO21/SPI_SCLK/I2S_FS/I2C_SDA/ADC_RCAL_VOUT/PWM 0
Note: 1. GPIO2 is used as a Bootstrap. When the power-on moment is high, the module enters the burning mode. When the power-on moment is low, the module starts normally.

Schematic diagram

Antenna parameters

Schematic of Antenna Test Prototype

Antennas parameter

Antenna Gain and Efficiency
Table 7 Antenna Gain and Efficiency

Frequency ID| 1| 2| 3| 4| 5| 6| 7| 8| 9| 10| 11
---|---|---|---|---|---|---|---|---|---|---|---
Frequency(MHz)| 2400| 2410| 2420| 2430| 2440| 2450| 2460| 2470| 2480| 2490| 2500
Gain (dBi)| 0.15| 0.35| 0.33| 0.54| 0.93| 1.00| 1.21| 1.32| 1.18| 1.14| 1.23
Efficiency (%)| 46.44| 48.21| 46.87| 48.02| 51.00| 51.53| 54.15| 55.61| 54.13| 53.62| 54.38

Antenna field pattern

Design guidance

Application guidance circuit

• IO2 is the module start control pin, which is in normal working mode at low level and in firmware burning mode at high level. The default low level inside the chip.
• IO2/NC, not available by default
• IO11/IO12/IO14/IO15, available by default. These IO ports are shared with the internal Flash of the module. If the module with external Flash is customized, it cannot be used. For use, please contact Ai-Thinker.
• IO17/NC, available by default. The IO port is shared with the 32.768KHz crystal output PIN pin inside the module. If the module of the internal patch 32.768KHz crystal oscillator is customized, the IO is in NC state.

Recommended PCB package size

Antenna layout requirements

• In the installation position on the motherboard, the following 2 methods are recommended:
  • Scheme 1: Place the module on the edge of the main board, and the antenna area extends out of the edge of the main board.
  • Scheme 2: Place the module on the edge of the motherboard, and the edge of the motherboard hollowed out an area at the antenna position.
• In order to meet the performance of the on-board antenna, it is forbidden to place metal parts around the antenna, away from high-frequency devices.

Power supply

• Recommended 3.3V voltage, peak current above 500mA.
• LDO is recommended for power supply; If DC-DC is used, it is recommended that the ripple be controlled within 30mV.
• The DC-DC power supply circuit suggests to reserve the position of the dynamic response capacitor, which can optimize the output ripple when the load changes greatly.
• It is recommended to add ESD devices to the 3.3V power interface.

GPIO

• Some IO ports are led out from the periphery of the module. If you need to use a resistor of 10- 100 ohms in series on the IO port. This can suppress overshoot and make the level on both sides more stable. It is helpful for both EMI and ESD.
• For the up and down of the special IO port, please refer to the instructions in the specification, which will affect the startup configuration of the module.
• The IO port of the module is 3.3V. If the level of the IO port of the main control and the module does not match, a level conversion circuit needs to be added.
• If the IO port is directly connected to the peripheral interface or terminals such as pins, it is recommended to reserve ESD devices at the IO port wiring close to the terminals.

Storage conditions

The product sealed in the moisture-proof bag should be stored in a non- condensing atmospheric environment of <40°C/90%RH. The moisture sensitivity level MSL of the module is level 3. After the vacuum bag is unpacked, it must be used within 168 hours at 25±5 ℃/60%RH, otherwise it needs to be baked before it can be put on line again.

Reflow Soldering Curve

Product packaging information
The Ai-M62-12F module adopts braided packaging, 800 pcs/disk. As shown in the following figure:

Contact us

• Ai-Thinker official website
• Office forum
• LinkedIn
• Tmall shop
• Taobao shop
• Technical support email: [email protected]
• Domestic business cooperation: [email protected]
• Overseas business cooperation: [email protected]
• Develop DOCS
• Alibaba shop

Company Address: Room 403,408-410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Xixiang, Baoan District, Shenzhen.
Tel: +86-0755-29162996

Disclaimer and copyright notice

• The information in this article,including the URL address for reference,is subject to change without notice.
• The document is provided”as is”without any guarantee responsibility,including any guarantee for merchantability,suitability for a specific purpose,or non-infringement,and any guarantee mentioned elsewhere in any proposal,specification or sample.
• This document does not bear any responsibility,including the responsibility for infringement of any patent rights arising from the use of the information in this document.
• This document does not grant any license for the use of intellectual property rights in estoppel or other ways,whether express or implied.
• The test data obtained in the article are all obtained from Ai-Thinker’s laboratory tests,and the actual results may vary slightly.
• All brand names,trademarks and registered trademarks mentioned in this article are the property of their respective owners,and it is hereby declared.
• The final interpretation right belongs to Shenzhen Ai-Thinker Technology Co.,Ltd.

Notice
Due to product version upgrades or other reasons,the contents of this manual may be changed. Shenzhen Ai-Thinker Technology Co.,Ltd.reserves the right to modify the contents of this manual without any notice or prompt. This manual is only used as a guide.Shenzhen Ai-Thinker Technology Co.,Ltd. makes every effort to provide accurate information in this manual.However, Shenzhen Ai- Thinker Technology Co.,Ltd. does not guarantee that the contents of the manual are completely free of errors.All statements and information in this manual And the suggestion does not constitute any express or implied guarantee.

FCC WARNING

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
This device complies with Part 15 of the 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. This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. 15.105 Information to the user.
(b) For a Class B digital device or peripheral, the instructions furnished the user shall include the following or similar statement, placed in a prominent location in the text of the manual:
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 generates, 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 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.

This equipment complies with FCC radiation exposure limits set forth for an uncon-trolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body.

Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user. The final end product must be labelled in a visible area with the following: “Contains Transmitter Module “FCC ID: 2ATPO-AIM62”

Requirement per KDB996369 D03

1. List of applicable FCC rules
   List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list compliance to unintentional-radiator rules (Part 15 Subpart B) since that is not a condition of a module grant that is extended to a host manufacturer. See also Section 2.10 below concerning the need to notify host manufacturers that further testing is required.
   Explanation: This module meets the requirements of FCC part 15C (15.247).it Specifically identified AC Power Line Conducted Emission, Radiated Spurious emissions, Band edge and RF Conducted Spurious Emissions, Conducted Peak Output Power, Bandwidth, Power Spectral Density, Antenna Requirement.

2. Summarize the specific operational use conditions
   Describe use conditions that are applicable to the modular transmitter, including for example any limits on antennas, etc. For example, if point-to- point antennas are used that require reduction in power or compensation for cable loss, then this information must be in the instructions. If the use condition limitations extend to professional users, then instructions must state that this information also extends to the host manufacturer’s instruction manual. In addition, certain information may also be needed, such as peak gain per frequency band and minimum gain, specifically for master devices in 5 GHz DFS bands.
   Explanation: The product antenna uses an irreplaceable antenna with a gain of 1.32dBi

3. Single Modular
   If a modular transmitter is approved as a “Single Modular ,” then the module manufacturer isresponsible for approving the host environment that the Single Modular is used with. The manufacturer of a Single Modular must describe, both in the filing and in the installation instructions, the alternative means that the Single Modular manufacturer uses to verify that the host meets the necessary requirements to satisfy the module limiting conditions. A Single Modular manufacturer has the flexibility to define its alternative method to address the conditions that limit the initial approval, such as: shielding, minimum signaling amplitude, buffered modulation/data inputs, or power supply regulation. The alternative method could include that the limited module manufacturer reviews detailed test data or host designs prior to giving the host manufacturer approval.
   This Single Modular procedure is also applicable for RF exposure evaluation when it is necessary to demonstrate compliance in a specific host. The module manufacturer must state how control of the product into which the modular transmitter will be installed will be maintained such that full compliance of the product is always ensured. For additional hosts other than the specific host originally granted with a limited
   module, a Class II permissive change is required on the module grant to register the additional host as a specific host also approved with the module. Explanation: The module is a single module.

4. Trace antenna designs
   For a modular transmitter with trace antenna designs, see the guidance in Question 11 of KDB Publication 996369 D02 FAQ – Modules for Micro-Strip Antennas and traces. The integration information shall include for the TCB review the integration instructions for the following aspects: layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements.

   • a) Information that includes permitted variances (e.g., trace boundary limits, thickness, length, width, shape(s), dielectric constant, and impedance as applicable for each type of antenna);
   • b) Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequency, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered);
   • c) The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout;
   • d) Appropriate parts by manufacturer and specifications;
   • e) Test procedures for design verification; and
   • f) Production test procedures for ensuring compliance
     The module grantee shall provide a notice that any deviation(s) from the defined parameters of the antenna trace, as described by the instructions, require that the host product manufacturer must notify the module grantee that they wish to change the antenna trace design. In this case, a Class II permissive change application is required to be filed by the grantee, or the host manufacturer can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application.

5. RF exposure considerations
   It is essential for module grantees to clearly and explicitly state the RF exposure conditions that permit a host product manufacturer to use the module. Two types of instructions are required for RF exposure information: (1) to the host product manufacturer, to define the application conditions (mobile, portable – xx cm from a person’s body); and (2) additional text needed for the host product manufacturer to provide to end users in their end-product manuals. If RF exposure statements and use conditions are not provided, then the host product manufacturer is required to take responsibility of the module through a change in FCC ID (new application).
   Explanation: The module complies with FCC radiofrequency radiation exposure limits for uncontrolled environments. The device is installed and operated with a distance of more than 20 cm between the radiator and your body.” This module follows FCC statement design, FCC ID: 2ATPO-AIM62

6. Antennas
   A list of antennas included in the application for certification must be provided in the instructions. For modular transmitters approved as limited modules, all applicable professional installer instructions must be included as part of the information to the host product manufacturer. The antenna list shall also identify the antenna types (monopole, PIFA, dipole, etc. (note that for example an “omni-directional antenna” is not considered to be a specific “antenna type”).
   For situations where the host product manufacturer is responsible for an external connector, for example with an RF pin and antenna trace design, the integration instructions shall inform the installer that unique antenna connector must be used on the Part 15 authorized transmitters used in the host product. The module manufacturers shall provide a list of acceptable unique connectors.
   Explanation: The product antenna uses an irreplaceable antenna with a gain of 1.32dBi

7. Label and compliance information
   Grantees are responsible for the continued compliance of their modules to the FCC rules. This
   includes advising host product manufacturers that they need to provide a physical or e-label stating “Contains FCC ID” with their finished product. See Guidelines for Labeling and User Information for RF Devices – KDB Publication

8. Explanation: The host system using this module, should have label in a visible area indicated the following texts: “Contains FCC ID: 2ATPO-AIM62

9. Information on test modes and additional testing requirements5
   Additional guidance for testing host products is given in KDB Publication 996369 D04 Module Integration Guide. Test modes should take into consideration different operational conditions for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product.
   The grantee should provide information on how to configure test modes for host product evaluation for different operational conditions for a stand-alone modular transmitter in a host, versus with multiple, simultaneously transmitting modules or other transmitters in a host. Grantees can increase the utility of their modular transmitters by providing special means, modes, or instructions that simulates or characterizes a connection by enabling a transmitter. This can greatly simplify a host manufacturer’s determination that a module as installed in a host complies with FCC requirements.
   Explanation: Shenzhen Ai-Thinker Technology Co., Ltd can increase the utility of our modular transmitters by providing instructions that simulates or characterizes a connection by enabling a transmitter.

10. Additional testing, Part 15 Subpart B disclaimer
    The grantee should include a statement that the modular transmitter is only FCC authorized for the specific rule parts (i.e., FCC transmitter rules) listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15
    Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.
    Explanation: The module without unintentional-radiator digital circuity, so the module does not require an evaluation by FCC Part 15 Subpart B. The host shoule be evaluated by the FCC Subpart B.

References

• Shenzhen Anxinke Technology Co., Ltd. - IoT wireless module, ESP8266/ESP32 modules
• anxinke.taobao.com/

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