The main considerations for the WiFi module are as follows:

1. Communication interface: USB or SDIO and PCIE;

2. Power supply mode: 3V3 is more commonly used, and 5V power supply is also available;

3. Antenna processing: onboard PCB; external via ipex socket; design by yourself in conjunction with the motherboard;

4. The specific size of the module is convenient for actual integration;

5. Working frequency band: ISM2.4G, ISM5.8G, BT version and wifi bandwidth;

6. Platform compatibility, some master MCUs will have a fixed WiFi chip reference model;

7. Software platform: Basically linux and Android, but different kernel versions; some require wince or windows;

8. Module chip manufacturers: the mainstream is Realtek/MTK/Atheros/Broadcom and some domestic RDA/BK, etc.;

The following models that are basically popular:

USB interface 2.4G 1T1R: RTL8188EUS/RTL8188ETV/RTL8188FTV/MT7601U series;

USB interface 2.4G 2T2R: MT7603U/RTL8192EU/BCM43217/MT7620/MT7628 series;

SDIO: RTL8189ETV/ RTL8189ES/RTL8189FTV, etc.;

The AP module series are as follows: AR9331, QCA9531, MT7620A, MT7620N, RT5350, MT7688, MT7628 core modules;

Internet of Things IOT:ESP8266

TML1511A-8188ETV/TML1510E-8188EUS/ TML1515A-8188FTV is the best-selling USB interface mini WiFi module in the RTL8188 series. Obviously, different suffixes represent different chips;

The main chip is optional: RTL8188ETV, RTL8188EUS, RTL8188FTV;     

Size: 13*12.2, 25*12, 12.7*12.2  commonly known as thumb type;

Package form: LGA-6; compatible with MT7601 module (TML1505C-7601U);

Antenna connection method: layout to the main board for a rich extension;

Communication interface: USB2.0;

Compliant with standards: IEEE802.11B/G/N;

Frequency range: 2.400GHz-2.4835GHz;

Maximum data transfer rate: 150Mbps 1T1R;

Module power supply voltage: 3V3±0.2V;

TML1516E-8189ETV/TML1512A-8189ES/TML1517A-8189FTV is a WiFi module with RTL8189 series SDIO interface;

Chip: RTL8189ETV, RTL8189ES, RTL8189FTV;

Size: 12.9*12.2, 14*12, 13.99*12.5;

Package form: LGA-13;

Antenna connection method: layout to the motherboard;

Communication interface: SDIO;

Compliant with standards: IEEE802.11b/g/n;

Maximum data transfer rate: 150Mbps;

Module power supply voltage range: typically 3V3;

The reason for choosing a module: It is to facilitate customer integration design, especially hardware compatible integration design, so that as long as the product has a comprehensive design in the early stage, subsequent product design and flexible selection of the application end provide great convenience. It saves repeated hardware design, shortens the development week, and accelerates the time to market products; widely used in: MID, security series network cameras, set-top box GPS, e-books, hard disk players, Internet radio, PSP, driving recorder series car products , Sports DV series of image transmission fields, such as consumer electronic products that need to realize wireless networking equipment, communication electronic products and other mobile devices that require small packaging, low power consumption, multiple interfaces and operating system support.

In actual application design and model selection, or embedding or integration applications, if you have any questions, you can contact Chuangling FAE to communicate in time, hoping to solve problems for industry users!