There are a large number of types of wireless network modules, but the main elements of module design in the wireless data transmission category include WiFi modules, Bluetooth-enabled modules and Zigbee modules. Today, we will focus on the WiFi module.
WiFi is a technology that allows electronic devices to connect to a wireless local area network (WLAN), also known as the IEEE 802.11 standard. It typically communicates in the 2.4 g UHF or 5G SHF ISM RF bands wireless module.UART-WiFi is an embedded module based on the UART interface and is compliant with the WiFi wireless network standard. It has built-in wireless network protocols IEEE802.11 protocol stack and TCP/IP protocol stack, which can realize the conversion between user's serial or TTL level data to wireless network.
WiFi modules can be categorized into the following three types: 1.
1.General purpose Wi-Fi modules: These modules can be used for USB or SDIO interfaces on devices such as cell phones, laptops and tablets.WI-FI stacks and drivers run on operating systems such as Android, Windows, and IOS, and require a powerful CPU to complete the application.1.Router solution Wi-Fi modules: These modules can be used for USB or SDIO interfaces on devices such as cell phones, laptops, and tablets.
2.Router Solutions WiFi Module:Generally a home router. Its protocols and drivers depend on chips with powerful Flash and Ram resources and Linux OS.
3. Embedded WiFi Module:This kind of student module design adopts 32-bit microcontroller with built-in WiFi drivers and protocols, and has general MCU interfaces in China, such as UART.smart module It is suitable for enterprise all kinds of artificial intelligence control home or intelligent system hardware single product. According to their different interface data types, embedded WiFi module we can develop into through the serial port to WiFi, network port to WiFi, SPI to WiFi, SDIO to WiFi, USB to WiFi and so on.
Through the above classification, we can clearly understand the different application scenarios and functional characteristics of WiFi modules. Both general-purpose Wi-Fi modules and embedded WI-FI modules provide convenience and support for wireless connection of iot devices.
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What is a WiFi module? The article takes you to understand