Midea MDA1L11-3 Wireless WIFI module
Introduction
MDA1L11-3 Wireless WIFI module is a low-power WIFI module for the Internet of Things. It supports IEEE802.11b / g / n protocol. It also embeds IPV4 / IPV6 TCP / IP, HTTP, DNS, FTP and other complete network protocols, making the terminal more reliable, convenient and easy to use.
The MDA1L11-3 module contains HolaConW01 single-chip solution. the chip in software and hardware are used in low-power technology, the purpose is to lower the power consumption of the entire board, the product more competitive. At present, the module provides a complete serial interface functions and equipment to communicate, so you can through the serial port and mobile client to connect the cloud and equipment.
- IEEE 802.1b/g/n, 2.4Ghz ,1T1R
- internal antennas
- Green TX Low power saving technology
- Low power monitor mode
- The maximum operationg frequency of the MCU is 160MHz
- Support “ali cloud”, optionally support “midea cloud”
- Full encryption support：WPS, WPA, WPA2
- Support IPV4, TCP/IP protocol
- Support HTTP, DNS, FTP and other network protocols
Top view
Positive figure
On the back of the figure
Module System Block Diagram
As shown in Figure 1, the MDA1L11-3 module contains HolaConW01 single-chip solution. The module uses the internal antenna design in PCB, both for customers to reduce the cost of the antenna, but also eliminates the need to consider the antenna assembly space. 
figure 1. Module System Block Diagram
Module technical specifications
| Main chip | HolaConW01 |
| Working frequency | 2.412~2.462GHz |
| WIFI standards supportde | 802.11b/g/n(1×1) |
| Modulation | 11b: DBPSK, DQPSK, CCK, DSSS
11g: BPSK, QPSK, 16QAM, OFDM 11n: MCS0~MSC7 OFDM |
| Supported rates | 11b: 1, 2, 5.5 和 11Mbps
11g: 6,9,12,18,24,36,48,54Mbps 11n: MCS0~7 |
| communication interface | UART0 and UART1 |
| PCB layer structure | 4 Layers |
| PCB size | 20.0mm(L)x15.0mm(W)x1.0mm(H) |
| Antenna | internal antennas, 2.4GHz gain value 2dBi |
| Working temperature | -20℃~+75℃ |
| Storage temperature | -40℃~+75℃ |
| Hardware version | MDA1L11-3_20*15_1L Ver:1.1 |
Note/FCC warning: 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 should be installed and operated with a minimum distance of 20cm between the radiator and your body.
Structure specification
Module structure size
The size of the module as shown above，length:20.0mm, width:15.0mm, thickness 1.0mm (error +/- 0.1mm)
Hardware interface definition
| PIN | Signal Name | Description |
| 1 | VCC | Supply Input Pin |
| 2 | RXD | UART receive data |
| 3 | TXD | UART transmit data |
| 4 | GND | Ground |
Wireless Specification
Table1: 802.11b mode
| Item | Spec | ||||
| Specification | IEEE802.11b | ||||
| Mode | DSSS / CCK | ||||
| Channel | CH1 to CH11 | ||||
| Data rate | 1, 2, 5.5, 11Mbps | ||||
| TX Characteristics | Min. | Typ. | Max. | Unit | Remark |
| 1. Power Levels(Calibrated) | |||||
| 1) 18dBm Target | 16 | 18 | 20 | dBm | |
| 2. Spectrum Mask @ target power | |||||
| 1) fc +/-11MHz to +/-22MHz | – | – | -30 | dBr | |
| 2) fc > +/-22MHz | – | – | -50 | dBr | |
| 3. Frequency Error | -10 | 0 | +10 | ppm | |
| RX Characteristics | Min. | Typ. | Max. | Unit | |
| 4 Minimum Input Level Sensitivity | |||||
| 1) 1Mbps (FER≦8%) | – | -93 | -98 | dBm | |
| 2) 2Mbps (FER≦8%) | – | -92 | -95 | dBm | |
| 3) 5.5Mbps (FER≦8%) | – | -90 | -93 | dBm | |
| 4) 11Mbps (FER≦8%) | – | -88 | -90 | dBm | |
| 5 Maximum Input Level (FER≦8%) | 0 | 0.5 | dBm | ||
Table2: 802.11g mode
| Item | Spec |
| Specification | IEEE802.11g |
| Mode | OFDM |
| Channel | CH1 to CH11 |
| Data rate | 6, 9, 12, 18, 24, 36, 48, 54Mbps | ||||
| TX Characteristics | Min. | Typ. | Max. | Unit | |
| 1. Power Levels | |||||
| 1) 17dBm Target @6Mbps | 15 | 17 | 19 | dBm | |
| 2) 15dBm Target @54Mbps | 13 | 15 | 17 | dBm | |
| 2. Spectrum Mask @ target power | |||||
| 1) at fc +/- 11MHz | – | – | -20 | dBr | |
| 2) at fc +/- 20MHz | – | – | -28 | dBr | |
| 3) at fc > +/-30MHz | – | – | -40 | dBr | |
| 3 Constellation Error(EVM)@ target power | |||||
| 1) 6Mbps | – | -22 | -25 | dB | |
| 2) 9Mbps | – | -23 | -25 | dB | |
| 3) 12Mbps | – | -24 | -26 | dB | |
| 4) 18Mbps | – | -24 | -27 | dB | |
| 5) 24Mbps | – | -25 | -27 | dB | |
| 6) 36Mbps | – | -25 | -30 | dB | |
| 7) 48Mbps | – | -25 | -31 | dB | |
| 8) 54Mbps | – | -28 | -32 | dB | |
| 4 Frequency Error | -10 | 0 | +10 | ppm | |
| RX Characteristics | Min. | Typ. | Max. | Unit | |
| 5 Minimum Input Level Sensitivity | |||||
| 1) 6Mbps (PER ≦ 10%) | – | -88 | -91 | dBm | |
| 2) 9Mbps (PER ≦ 10%) | – | -88 | -91 | dBm | |
| 3) 12Mbps (PER ≦ 10%) | – | -86 | -90 | dBm | |
| 4) 18Mbps (PER ≦ 10%) | – | -84 | -88 | dBm | |
| 5) 24Mbps (PER ≦ 10%) | – | -81 | -86 | dBm | |
| 6) 36Mbps (PER ≦ 10%) | – | -78 | -83 | dBm | |
| 7) 48Mbps (PER ≦ 10%) | – | -73 | -77 | dBm | |
| 8) 54Mbps (PER≦ 10%) | – | -72 | -75 | dBm | |
| 6 Maximum Input Level (PER ≦ 10%) | 0 | -10 | dBm |
Table3：802.11n (HT20) mode
| Item | Spec | ||||
| Specification | IEEE802.11n HT20 @ 2.4GHz | ||||
| Mode | OFDM | ||||
| Channel | CH1 to CH11 | ||||
| Data rate (MCS index) | MCS0/1/2/3/4/5/6/7 | ||||
| TX Characteristics | Min. | Typ. | Max. | Unit | |
| 1. Power Levels | |||||
| 1) 17dBm Target@MCS0 | 15 | 17 | 19 | dBm | |
| 2) 14dBm Target@MCS7 | 12 | 14 | 16 | dBm | |
| 2. Spectrum Mask @target power | |||||
| 1) at fc +/- 11MHz | – | – | -20 | dBr | |
| 2) at fc +/- 20MHz | – | – | -28 | dBr | |
| 3) at fc > +/-30MHz | – | – | -45 | dBr | |
|
3. Constellation Error(EVM)@ target |
|||||
| power | |||||
| 1) MCS0 | – | -22 | -24 | dB | |
| 2) MCS1 | – | -25 | -27 | dB | |
| 3) MCS2 | – | -26 | -28 | dB | |
| 4) MCS3 | – | -27 | -29 | dB | |
| 5) MCS4 | – | -27 | -29 | dB | |
| 6) MCS5 | – | -28 | -30 | dB | |
| 7) MCS6 | – | -28 | -30 | dB | |
| 8) MCS7 | – | -29 | -31 | dB | |
| 4. Frequency Error | -10 | 0 | +10 | ppm | |
| RX Characteristics | Min. | Typ. | Max. | Unit | |
| 5. Minimum Input Level Sensitivity | |||||
| 1) MCS0 (PER ≦ 10%) | – | -89 | -91 | dBm | |
| 2) MCS1 (PER ≦ 10%) | – | -85 | -87 | dBm | |
| 3) MCS2 (PER ≦ 10%) | – | -83 | -84 | dBm | |
| 4) MCS3 (PER ≦ 10%) | – | -80 | -82 | dBm | |
| 5) MCS4 (PER ≦ 10%) | – | -77 | -79 | dBm |
| 6) MCS5 (PER ≦ 10%) | – | -73 | -75 | dBm | |
| 7) MCS6 (PER ≦ 10%) | – | -72 | -73 | dBm | |
| 8) MCS7 (PER ≦ 10%) | – | -70 | -71 | dBm | |
| 6. Maximum Input Level (PER ≦ 10%) | – | 0 | -8 | dBm |
Label printing requirements
Label size is 13.5*9.5mm, label material is white, Song typeface; The dimension of the QR code is 6.8*6.8mm. 
QR code content: The content of the QR code is shown in the following table.
| QR code content | ||
|
Field |
Characters in length |
note |
| The initial code |
4 |
Fixed content as “MAC:” |
| The MAC address |
12 |
Fixed as “XXXXXXXXXXXX” |
|
Production information |
26 |
If the content is less than 26 characters, fill in the front with the character “X”
Factory code (2 a) + job number (8) + production date (6th) + small software version number (6) + enterprise code (4 digits) : “01 xxxxxxxx1608020001090000” |
| Software version number |
12 |
Fixed as ” 050808011944″ |
| The power supply |
4 |
Fixed content as “3.3v” or “5.0v” |
| current | 5 | Fixed content as “500mA” |
Note:
- Starting code (4 bits) : MAC:
- MAC address (12 bits) : XXXXXXXXXX
- Production information (bit 26) : 01 XXXXXXXX 160919 000109 0000
- Position 1 and 2: represent the manufacturing plant
- Position 3-10: represents the job number of the manufacturing plant
- Bit 11~16: production date, such as September 19, 2016 marked 160919 Bits 17 to 22: software minor version Numbers
- No. 23-26: enterprise code, midea’s internal business department is “0000”
- Non-american enterprise code according to the software code. Software version (12 bits) : 050808011944
- Power supply (4-bit) : working voltage of the module
- Current (5 bits) : 500mA
FCC label statement
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, and
- This device must accept any interference received, including interference that my cause undesired operation.
To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end product. “Contains Transmitter module FCC ID: 2ADQOMDA1L11-3”
Documents / Resources
 |
Midea MDA1L11-3 Wireless WIFI module [pdf] User Manual MDA1L11-3, MDA1L113, 2ADQOMDA1L11-3, 2ADQOMDA1L113, MDA1L11-3, Wireless WIFI module |
