Midea MWB-S-WB01-2 Bluetooth and 2.4GHz WiFi Dual Band Communication Module Owner’s Manual
- October 27, 2023
- Midea
Table of Contents
MWB-S-WB01-2 Bluetooth and 2.4GHz WiFi Dual
Band Communication Module
Owner’s Manual
Name of manufacturer: Midea IoT
Module name: Bluetooth & 2.4GHz Wi-Fi dual band Communication Module
Model: MWB-S-WB01-2
This document is confidential, and all information contained herein is subject
to the final interpretation of Midea IoT. Any unauthorized reproduction of
this document without permission is not acceptable and shall be prohibited.
Midea IoT
Address: Midea Global Innovation Center, Shunde District, Foshan, Guangdong
Province, China
Tel:
Product overview
MWB-S-WB01-2 is a fully functional, highly integrated and low-power
consumption WIFI+BLE module dedicated for the Internet of Things, which is
developed by Midea. The module adopts a built-in PCB antenna design, whose
master chip is highly integrated with memory, flash, WIFI baseband, Bluetooth
baseband, etc. Meanwhile, it supports IEEE802.11 b/g/n protocol and provides
UART communication interface to communicate with the host device, which can be
widely used in smart home equipment, remote monitoring equipment, medical
machinery and other fields.
The module has the following features:
- Main frequency supports 320MHz, SRAM 384KB, ROM 128KB and 4M Flash
- Support IEEE 802.11b/g/n protocol
- Support 20MHz bandwidth in the 2.4GHz frequency band
- Support Bluetooth BLE 5.0
- Support encryption protocol: WEP, WPA, WPA2, WPA3, TKIP
- On-board PCB antenna
- Operating temperature: -20℃ to 85℃
Figure 1.1. Block diagram of the MWB-S-WB01-2 module scheme
Top view
Front view
Radio frequency (RF) characteristics
3.1. Basic RF parameters
| Frequency range | WIFI: 2.4GHz-2.4835GHz Bluetooth: 2.4GHz-2.4835GHz |
|---|---|
| Wireless standard | WIFI: 802.11b/g/n, Bluetooth: BLE 5.0 |
| Antenna type | PCB antenna |
| Antenna Gain | 0dBi |
| Transmission rate | 11b:1Mbps, 2Mbps, 5.5Mbps, 11Mbps |
11g: 6Mbps, 9Mbps, 12Mbps, 18Mbps, 24Mbps, 36Mbps, 48Mbps, 54Mbps
11n:MCS0, MCS1, MCS2, MCS3, MCS4, MCS5, MCS5, MCS6, MCS7
Bluetooth: 1Mbps
Protocol stack supports| WIFI: IPV4, TCP/UDP/HTTP/MQTT/Websocket/ARP/ICMP
Bluetooth: GATT/ATT/SMP/L2CAP/GAP/HCI/LL
Security supports| Encryption standard: WEP/WPA/WPA2/WPA3
Encryption algorithm:WEP64/WEP128/TKIP/AES
3.2. RF output power
Rate
| Minimum| Typical| Maximum|
Unit
---|---|---|---|---
1Mbps| 15| 17| 19| dBm
11Mbps| 15| 17| 19| dBm
54Mbps| 12| 14| 16| dBm
HT20-MCS7| 12| 14| 16| dBm
Bluetooth 1Mbps| 4| 6| 8| dBm
Frequency error| -10| 0| 10| ppm
3.3 . RF receiver sensitivity
| Rate | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| 1Mbps | -84 | -95 | dBm | |
| 11Mbps | -78 | -89 | dBm | |
| 54Mbps | -65 | -74 | dBm | |
| HT20-MCS7 | -64 | -71 | dBm | |
| Bluetooth 1Mbps | -70 | -90 | dBm |
3.4 . Module antenna characteristics
Ø The passive performance of the antenna for this module shall meet the
following requirements:
| Parameter | Operating frequency range: 2.4GHz- 2.4835GHz |
|---|---|
| S11 | <-10dB |
| Efficiency | >40% |
Ø The antenna drawing of the module is as follows:
- The module is recommended to be placed at the edge of the electronic control board, with the antenna facing outward, away from metal parts and high-frequency signal lines.
- Routing under the PCB antenna is forbidden, and do clearance processing. Routing of high-speed signals around and below the module shall be avoided. If the module cannot be avoided during routing, it is recommended to strictly follow the high-frequency signal routing rules, and perform signal packaging processing on the high- speed signals.
- During installation, the front of the antenna shall avoid the metal shell or parts, so as not to shield the signal. Plastic shelter is allowed, but any interference between any object and the antenna is prohibited.
Product structure diagram
4.1. Interface schematics
Figure 2.1. Terminal interface
Table 2.1. Description of terminal interface
| No. | Mark | Description of Wi-Fi module terminal pin |
|---|---|---|
| 1 | V | VCC (Power supply) |
| 2 | R | RX module receiving |
| 3 | T | TX module transmitting |
| 4 | G | GND (Ground) |
Wiring instructions:
The RXD and TXD pins of the Wi-Fi Bluetooth module are connected to the TXD
and RXD pins at the communication end, and the VCC is connected to 5V level.
GND refers to the grounding. After the module is powered on, RX terminal is
used for receiving and TX terminal is used for transmitting.
4 . 2 . Label requirements
Label printing requirements: The label size is 13.59.5mm, which is white, in
standard typeface of Chinese; the size of the two-dimensional code is 55mm.
Content of the two-dimensional code: The content of the two-dimensional
barcode is described in the following table.
Content of the two-dimensional code
Field| Character length| Remarks
CMIITID| 10| Printed after ID confirmation
MAC address| 12|
Production information S/N| 26| If the content is less than 26 characters,
complete the content with the character “X” in front of the characters
Processing factory code (2 digits) + job number (8 digits) + production date
(6 digits) + software minor version number (6 digits) + enterprise code (4
digits), for example:
---|---|---
Software version number| 12| 050509011835
Power supply| 4| The content is fixed as “5.0V”
Current| 5| 500mA
Note:
Production information (26 digits): 02 XXXXXXXX 170608 000003 0000
Digits 1-2: represent the production factory
Digits 3-10: represent the operation number of the factory.
Digits 11-16: represent production date. For example, June 8, 2017 is marked
as 170608.
Digits 17- 22: reserved.
Digits 23-26: enterprise code. The internal division in Midea is “0000”.
Non-Midea enterprise code is based on the software code.
Software version (12 digits): XXXXXXXXXXXX
Power supply (4 digits): module working voltage
Current (5 digits) : 500mA
Others: fill-in as required;
CMIIT ID: fill-in as required;
Code: It is the code prepared for the module by the centralized purchasing
department of Midea;
Digit segments are separated by “,”;
4.3. Shield cover size
Technical requirements:
- Material: Copper-Nickel-Zinc Alloy C7701, T=0.2mm, H=1.5mm
- The surface is clean, without burr, flash and other defects
- Unless otherwise indicated, the dimension tolerance is ±0.1mm
- Unless otherwise indicated, the corner angle is R0.2mm, and the bending inner angle is less than R0.2mm
4.4. Pin drawing
Technical requirements:
- Rated current: 3A
- Withstand voltage: AC 500V
- Operating temperature: -40℃- +105℃
- Insulation material: black PA6T
- Material: brass
- Plating: G/F Plated Over Nickel
Power consumption
Power consumption in working mode (based on the 2-minute test results of the proposed version):
Mode
| Average current (mA)| Minimum current (mA)| Maximum current (mA)|
Average power
consumption (mW)
---|---|---|---|---
Idle| 16.39| 14.87| 70.09| 81.94
AP| 51.73| 27.03| 206.54| 258.67
Station idle| 44.9| 28.78| 186.78| 224.50
Station data transmission| 45.20| 22.39| 280.73| 226.02
Station AP offline| 46.30| 24.83| 277.46| 231.50
Electrical parameters
6.1 Absolute electrical parameters
Power parameters: (ripple control within 100mV)
6.2. Operating conditions
The product shall be supplied by ES1/PS1 power source.
Parameter| Description| Minimum value| Typical val|
Maximum value| Unit
---|---|---|---|---|---
Ta| Operating temperature| -20| –| 85| ℃
VCC| Operating voltage| 4.5| 5| 5.5| V
VIL| Low level input| -0.3| –| 0.3| V
VIH| High level input| 4.5| 5| 5.5| V
VOH| High level output| 4.7| –| 5| V
VOL| Low level output| 0| –| 0.3| V
Compliance standards and certifications
The Wi-Fi Bluetooth module shall comply with ROHS environmental assessment certification.
Precautions
The Wi-Fi Bluetooth module exposed in the air (The core board inside the
module or the whole that is composed of the core board and the substrate)
should at least meet the environmental conditions for ordinary consumer
electronics, including but not limited to:
-
Operating temperature: -20-85℃
-
Storage temperature: -40-85℃
-
Operating humidity: 0-95 % RH
-
Storage humidity: 0-98 % RH
-
The module can withstand the thermal shocks every 2h a cycle in the range of -20℃ to +85℃.
There should be no function failure or performance degradation in at least 20 cycles of shocks, without significant tin crack. -
The temperature rise of the circuit components should meet the requirements of their own specifications when operation is performed for long periods of time.
-
In the simulation of the transportation process and home application scenarios, the module should be resistant to a certain degree of mechanical shock and drops.
Through certain protection means, the Wi-Fi Bluetooth module can be provided
with higher environmental adaptability. In the design of WiFi Bluetooth
module, the margin of performance, size and process required for the
implementation of protective means shall be reserved.
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 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.
MODIFICATION: Any changes or modifications not expressly approved by the
grantee of this device could void the user’s authority to operate the device.
To satisfy FCC exterior labeling requirements, the following text must be
placed on the exterior of the end product.
“Contains Transmitter module FCC ID: 2ADQOMWBSWB012”
This product must be installed and operated with a minimum distance of 20 cm
between the radiator and user body.