Haier WCATA011 Wi-Fi/Bluetooth Combo Module Owner's Manual

Access the host device’s settings menu to enable Wi-Fi and Bluetooth functionalities.
Search for available networks and devices to establish connections.

Follow on-screen prompts to pair Bluetooth devices and connect to Wi-Fi networks.
Customize settings as needed for specific applications.

The information and data contained herein are subject to change without notice. While every possible precaution has been taken in the production of this document, it may still contain technical inaccuracies, omissions, and typographical errors, and AI-Link, the document owner, is under no obligation to update or otherwise correct this information. Haier US Appliances Solutions, Inc. makes no representations or warranties concerning t he accuracy or c ompleteness of the contents of this document and assumes no liability of any kind, including the implied warranties of non-infringement, merchantability, or fitness for purposes, concerning the operation or use of Haier hardware, software or other products described herein.

No license to any intellectual property rights is granted by this document. Terms and limitations applicable to the purchase or use of Haier’s products are outlined in a signed agreement between the parties or AI-Link’s standard terms and conditions of sales.
Any unauthorized copying, alteration, distribution, transmission, performance, display, or other use of this document is strictly prohibited. Reverse engineering or disassembly is also prohibited.

ABOUT COMPANY

Compatible WLAN Standards
- IEEE Std. 802.11 b/g/n
- Bluetooth 4.2
SoC RTL8720CM
Product Size 67.82mmx21.77mmx11.9mm
Product Weight 17.8 g

Features

WLAN

CMOS MAC, Baseband PHY, and RF in a single chip for 802.11b/g/n compatible WLAN
Complete 802.11n solution for 2.4GHz band
65Mbps receive PHY rate and 65Mbps transmit PHY rate using 20MHz bandwidth
Backward compatible with 802.11b/g devices while operating in 802.11n mode
One Transmit and one Receive path (1T1R)
20MHz bandwidth transmission
DSSS with DBPSK and DQPSK, CCK modulation with long and sh

Bluetooth

The RTL8720CM highly integrated Bluetooth Low Energy controller with a UART interface. It combines a BLE Protocol (PHY, LL, L2CAP, SM, ATT, GAP, GATT), BLE Baseband, Modem, and BLE RF in a chip, also supports BLE user GATT-based profile application.
Bluetooth 4.2 Low Energy (F/W supported)

General Description

System Overview
WCATA011 SoC module desig ned based on RTL8720CM chip solution. RT L8720CM is are highly integrated single-chip low-power 802.11n Wireless LAN (WLAN) network controller. It combines a KM4 MCU, WLAN M AC, a 1T1R capable WLAN baseband, RF, and Bluetooth in a single chip. It also provides a bunch of configurable GPIOs, which are configured as digital peripherals for different applications and control usage.

System Properties

Dimension	Typically, 67.82mmx21.77mmx11.9mm
Chipset	RTL8720CM
Operating Frequency	2.4GHz: 2400-2483.5MHz
Antenna	Ceramic antenna
Operating Voltage	5.0V±10%
PCB Information	4-layer design (1.65mm)
Peripheral Interface	WIFI@UART BT@ UART
Rate	11b: 1, 2, 5.5, and 11Mbps 11g: 6, 9, 12, 18, 24, 36, 48, and 54 Mbps 11n: MCS0~7, up to 65Mbps
Operating Temperature	-20℃ to +85℃
Storage Temperature	-40℃ to +125℃

Diagram
The general HW architecture for the module is shown in Figure 1. The WCATA011 module is a chip set solution, a system-on-chip module, a x1 802.11 b/g/n device optimized for low-power embedded applications with single-stream capability for both transmit and receive， and Bluetooth in a single chip. It has an integrated network processor with a large set of TCP/IP with IPv4/IPv6-based services.

Mechanical Dimensions

Mechanical Outline Drawing

Typical Dimension (W x L x T): 67.82mmx21.77mmx11.9mm

General tolerance: ±0.127 mm
Direction tolerance: ±0.5°

Pin definitions

5v0	1	CONNECTOR
MCU_TX &GPIO_14	2
MCU_RX &GPIO_13	3
Baud Select	4
GND	5
3.3V	1	SWD & UART
SWD Data &GPIO_1	2
	3
	4
	5
SWD CLK &GPIO_0	6
LOG_TXD &GPIO_16	7
LOG_RXD &GPIO_15	8
MCU Reset	9
3.3V Input	10
GND	11

Product Photos

RF Characteristics

Wi-Fi Subsystem

Items	Contents
WLAN Standard	IEEE 802.11b/g/n
Frequency Range	2400-2483.5 GHz (2.4 GHz)
Channels	CH1 to CH13 @ 2.4G
Modulation Mode	802.11b: DBPSK, DQPSK ,CCK
	802.11g/n: BPSK, QPSK, 16QAM, 64QAM
Output Power & EVM	Power Value	EVM
	802.11b /11Mbps: 16dBm ± 2dBm	≤ -10dB
	802.11g /54Mbps: 14dBm ± 2dBm	≤ -25dB
	802.11n HT20 /MCS7: @2.4G 14 dBm ± 2dBm	≤ -28dB
Receiver Sensitivity @2.4G PER≤ 10%	Rate Type	Max
	802.11b /11Mbps @2.4G PER≤8%	-76dBm
	802.11g /54Mbps @2.4G	-65dBm
	802.11n HT20 /MCS7 @2.4G	-64dBm

Software Information

AmebaZII_PGTool_v1.2.34
*Note: The software (driver) package version is subject to change without notice because it may encounter several updates. It is advised to consult with AI-Link for the best driver package.

Package, Storage & Disposal

Package

Storage
All electronic components must be stored in a clean, well-ventilated place free of corrosive gases. Unless otherwise specified, the temperature and humidity of the storage place must meet below requirements:

Temperature: -40~125℃；
Humidity: 20%~75%；
Humidity sensitivity grade: MSL 3

Container Requirement: products shall be placed in a container well-functioning as an electrostatic shielding.

IC Radiation Exposure Statement

This device complies wth Industry Canada’s CCENELEC standards. Operation is subject to the following two conditions:

This device may not cause interference and

This device must accept any interference, including interference that may cause undesired operation of the device.

The term “IC:” before the certification/regeistration number oniy signifies that the industry Canada technical specifications were met.This product meets the applicabe industry Canada technical specifications.

FCC NOTE

This equipment has been tested and found to comply with the limits for a Class B digital device, under 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 according to 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 to 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 device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference

This device must accept any interference received, including interference that may cause undesired operation

Disposal
The waste disposal of this product and the package should comply with the applicable local/regional /state/ international regulations.

RF Exposure

This equipment complies with FCC/IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

The module is limited to installation in mobile or fixed applications. Separate approval is required for all other operating configurations, including portable configurations concerning Part 2.1093 and different antenna configurations.

IC labeling requirement for the end product:

The end product must be labeled in a visible area with the following: “Contains IC: 10229A-WCATA011”

The Host Marketing Name (HMN) must be indicated at any location on the exterior of the host product or product packaging or product literature, which shall be available with the host product or online.
Unauthorized modifications could void the user’s authority to operate the equipment.
This radio transmitter [IC: 10229A-WCATA011] has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.

Frequency range Manufacturer Peak gain Impedance Antenna type

2400-2483.5MHz Walsin Technology Corporation 2.66dBi 50Ω Ceramic Antenna

ORIGINAL EQUIPMENT MANUFACTURER (OEM) NOTES

OEM must certify the end product to comply with unintentional radiators (FCC Sections 07 and 15.109) before declaring compliance of the final product to Part 15 of the FCC rules and regulations. Integration into devices that are directly or indirectly connected to AC lines must comply with Class II Permissive Change.
The OEM must comply with the FCC labeling requirements. If the module’s label is not visible when installed, then an additional permanent label must be applied on the outside of the finished product, which states: “Contains transmitter module FCC ID: ZKJ-WCATA011”. Additionally, the following statement should be included on the label and in the final product’s user manual: “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 interferences, and
2. This device must accept any interference received, including interference that may cause undesired operation.”

The module is limited to installation in mobile or fixed applications. Separate approval is required for all other operating configurations, including portable configurations concerning Part 2.1093 and different antenna configurations. A module or modules can only be used without additional authorizations if they have been tested and granted under the same intended end-use operational conditions, including simultaneous transmission operations. When they have not been tested and granted in this manner, additional testing and/or FCC application filing may be required. The most straightforward approach to address additional testing conditions is to have the grantee responsible for the certification of at least one of the modules submit a permissive change application. When having a module granting a change is not practical or feasible, the following guidance provides some additional options for host manufacturers. Integrations using modules where additional testing and/or FCC application filing(s) may be required are:
- a module used in devices requiring additional RF exposure compliance information (e.g., MPE evaluation or SAR testing);
- limited and/or split modules not meeting all of the module requirements;
- Simultaneous transmissions for independent collocated transmitters not previously granted together.
This Module is full modular approval; it is limited to OEM installation ONLY. Integration into devices that are directly or indirectly connected to AC lines must comply with Class II Permissive Change. (OEM) Integrator has to ensure compliance of the entire end product, including the integrated Module. Additional measurements (15B) and/or equipment authorizations (e.g., Verification) may need to be addressed depending on co-location or simultaneous transmission, if applicable. (OEM) Integrator is reminded to ensure that these installation instructions will not be made available to the end user.

Requirement per KDB996369 D03

List of applicable FCC rules
List the FCC rules that apply 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 with 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.3 Explanation: This module meets the requirements of FCC part 15C(15.247).

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 a 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 module has the trace antenna designs, and the antenna uses a permanently attachedantennana which is unique. The designed antenna meets the hardware module’s requirements. The antenna is fixed on the module PCB board.

Limited module procedures

If a modular transmitter is approved as a “limited module,” then the module manufacturer is responsible for approving the host environment in which the limited module is used. The manufacturer of a limited module must describe, both in the filing and in the installation instructions, the alternative means that the limited module manufacturer uses to verify that the host meets the requirements to satisfy the module’s limiting conditions.

A limited module 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 the limited module manufacturer reviewing detailed test data or host designs before givingmanufacturingr approval.
This limited module 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 not limited.

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.

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);
Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequencies, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered);
The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout;

Appropriate parts by manufacturer and specifications;
Test procedures for design verification; and
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 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.
Explanation: Yes, the module with trace antenna designs, and this manual shows the layout of tracethe design, antenna, connectors, and isolation requirements.

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 for the module through a change in FCC ID (new application).
Explanation: This module complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.” This module is designed to comply with the FCC statement, FCC ID is: ZKJ-WCATA011.

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 “omnidirectional 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 a 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 module has the trace antenna designs, and the antenna uses a permanently attached antenna, which is unique. The designed antenna meets the hardware module’s requirements. The antenna is fixed on the module PCB board.

Label and compliance information
Grantees are responsible for the continued compliance of their modules with 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 784748.
Explanation: The host system using this module should have a label in a visible area indicating the following text: “Contains FCC ID: ZKJ-WCATA011”

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 simulate or characterize 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: The Top band can increase the utility of our modular transmitters by providing instructions that simulate or characterize a connection by enabling a transmitter.

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 circuitry), 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 does not have unintentional-radiator digital circuitry, so the module does not require an evaluation by FCC Part 15 Subpart B. The host should be evaluated by the FCC Subpart B.

Frequently Asked Questions (FAQ)

Can this module be used with both Android and iOS devices?
Yes, the WCATA011 module is compatible with both Android and iOS devices that support Wi-Fi and Bluetooth connectivity.
What is the range of the Bluetooth signal?
The Bluetooth signal range typically reaches up to 10 meters in an open environment, but this range may vary based on interference and obstacles.

Documents / Resources

Haier WCATA011 Wi-Fi/Bluetooth Combo Module [pdf] Owner's Manual
ZKJ-WCATA011, ZKJWCATA011, WCATA011 Wi-Fi Bluetooth Combo Module, WCATA011, Wi-Fi Bluetooth Combo Module, Bluetooth Combo Module, Combo Module, Module

References

User Manual

Haier WCATA011 Wi-Fi/Bluetooth Combo Module

Product Specifications

Product Features

Product Usage Instructions