Operation Principle of WiFi Module: A WiFi module typically consists of two main components: a wireless chipset and a microprocessor. The wireless chipset is responsible for handling the transmission and reception of wireless signals, while the microprocessor manages and controls various functions of the WiFi module. During data transmission, the wireless chipset uses radio waves to interact with signals. By carefully selecting frequencies and channels, it communicates with other devices. When data needs to be transmitted, the wireless chipset converts it into digital signals, which are then transmitted through the antenna. The receiving-side wireless chipset converts the received signal back into digital format and passes it to the microprocessor for further processing. The microprocessor is responsible for decoding, decryption, and a series of other operations, ultimately transferring the processed data to the device's operating system.
WiFi Module Operating Modes:
AP Mode (Access Point Mode): Also known as hotspot mode. In this mode, the WiFi module acts as an access point, similar to the functionality of a router. It creates a wireless network, allowing other devices to connect to this network, much like setting up a Wi-Fi hotspot in a home or office environment. AP mode is often used to establish direct connections, enabling multiple mobile devices to connect to a central device, or to create temporary wireless networks. In AP mode, devices like smartphones, tablets, and computers can directly connect to the module, facilitating user control over these devices.
STA Mode (Station Mode): STA mode turns the device into a client of an existing wireless network. In this mode, the device connects to an already existing wireless network, just like a smartphone or laptop connects to a home Wi-Fi router. STA mode allows the device to connect to an existing wireless network, enabling access to the internet or communication with other devices. In STA mode, the device becomes a node on the network, facilitating data exchange and communication with other devices.
Please note that the translations might not be perfectly aligned with technical terminology in English, as they are directly translated from the provided Chinese text.
All in all, the WiFi module transmits and receives signals through the wireless chip, and can fully manage and control various functions. AP mode is used to establish a direct connection or temporary network, while STA mode enables devices to connect to existing wireless networks for Internet access and communication between devices.
