I don't know much about the company's products recently, so make some notes, update the technical parameters of the products, and keep learning...

With the release of the latest 802.11ax standard, the name of the new WiFi standard will also be defined as WiFi 6, that is, this standard is the sixth standard. From this standard, the original standard modules will be successively named WiFi 1/2/3/4/5

The wireless network technology was invented by CSIRO, a research organization of the Australian government, in the 1990s and successfully patented in the United States in 1996. (It is really embarrassing to find out that this WiFi Wikipedia is the same as Baidu, which has no nutrition.)

WiFi technology is widely used in homes and small offices, linking desktops and laptops, tablets, smartphones, smart TVS, printers and smart speakers together and connecting them to the Internet via wireless routers. And provide Internet access to visitors' mobile devices at wireless access points in public places such as cafes, hotels, libraries and airports

WiFi uses multiple Buffons of the IEEE 802 protocol family and is designed to work seamlessly with its wired counterpart Ethernet, allowing compatible devices to Internet each other through wireless access points, as well as connect to wired devices and the Internet. Different versions of the wireless Internet are specified by the IEEE 802.11 protocol. Different radio technologies determine the maximum range of radio bands and the speeds that are possible.

The most commonly used WiFi frequencies are 2.0 GHZ UHF and 5 GHZ SHF radio waves. These bands are subdivided into multiple channels, and the channels can be shared between networks, but within range, can only be transmitted by one transmitter on one channel at a time.