In the field of wireless networks, wireless wifi is the hottest term. What is the working principle of the serial wifi module? What function does the serial port wifi module have? wallys communication will explain the working principle of the serial port wifi module and the detailed function introduction.
Introduction of Serial Port wifi Module:
It adopts UART interface, supports transparent data transmission mode of serial port, and has the ability of multi-mode security. The built-in TCP/IP protocol stack and IEEE802.11 protocol stack can realize the conversion between the user serial port and wireless network. Serial WiFi module TLN13UA06 supports transparent data transmission mode of the serial port and has the ability of safe multi-mode so that traditional serial devices can better join the wireless network.
To explain the working principle of the serial port wifi module, let's first explain several wireless wifi network structures that we often encounter in our lives.
There are two kinds of wireless wifi network topologies, which are basic network (Infra) and Adhoc network (AD hoc). There are two concepts to understand here, the AP, like the router in our home, the creator of the wireless wifi network, the central node of the network. STA, also called site, is the terminal of wireless wifi network, not as our home laptop, ipad and so on can be called site.
Basic network (Infra) : a wireless network composed of many aps. The center of the whole network is the AP, and all communications in the network are performed by the AP data conversion.
AD hoc network: A wireless network composed of two or more stas without AP. All stas in the wireless network exchange data directly, and this wireless network structure is not rigorous.
Advantages of dual-band wifi
Now the market began to appear a large number of dual-band WiFi wireless routers, and many ordinary users do not know what is called dual-band WiFi, the following is a brief introduction to dual-band WiFi.

Definition of dual-band WiFi
The so-called dual-band WiFi, refers to support two different bands of wireless signals at the same time, the two network segments are 2.4G and 5G, support 802.11a/b/g/n technology, is the fifth generation of WiFi transmission technology.

At present, most wireless products use single frequency 2.4GWiFi wireless transmission, such as wireless mouse, keyboard, USB wireless network card, ordinary wireless router, etc. Dual-band WiFi technology is only supported by higher-end smart devices, such as mobile phones, tablets, and high-end wireless routers.

2.4G and 5G pros and Cons
The advantage of 2.4G is that it has a good ability to penetrate walls.
The disadvantage of 2.4G is that it is susceptible to interference.
The advantages of 5G are strong anti-interference ability, wide bandwidth, high throughput, and strong scalability.
The disadvantage of 5G is that it is only suitable for indoor small-range coverage and outdoor bridge, and the attenuation effect of various obstacles on it is much larger than that of 2.4g.
Advantages of dual-band WiFi
The advantage is that compared with single frequency WiFi, it has a stronger and more stable WiFi wireless signal, higher speed transmission speed, and can make the wireless equipment more power saving, to meet the future high-definition and big data wireless transmission needs.

Just like the city road, some sections can only drive one way, while some sections support two-way driving, single frequency WiFi only supports 2.4G, just like a one-way roads, more crowded. If you support both 2.4G and 5G, it will be as smooth as the road and the highway.

Wallys Communications (SuZhou) Co., Ltd., http://www.wallystech.com,whichis  mainly engaged in the research and development and production of wireless communication products, providing superior OEM/ODM/JDM services in wireless communications and customer-specific solutions.In addition to the PCBA mainboard, we can also customize indoor or outdoor antennas, which we have extensive experience. There is also the Tooling. We can do the Tooling for the customer, to undertake a variety of materials
mainly metal and plastic enclosure production. Whether antenna enclosure or router enclosure, we can customize it for you. Besides the Qualcomm chips we currently use, we can also use different chips to design according to customers' needs
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