Abstract: With the development of AI technology, smart home has become a hot topic. After years of development, Wi-Fi module has gradually become the main solution of IoT smart appliances. However, after smart appliances enter user’s home, how to easily connect the Wi-Fi network has become a painful point that users do not need to pay attention to, it brings a lot of trouble to users using IoT smart appliances. With the increasing popularity of NFC mobile phones in the past two years, mainstream mobile phone brands pay more and more attention to and recognize the user experience of NFC touch. In 2020, iOS system opened the appclip Developer Platform Based on NFC, and “touch” has also become one of the important experience features of HarmonyOS applications. In the field of Wi-Fi smart appliances, by comparing the characteristics of existing Wi-Fi network-config method, the dual interface passive NFC technology is adopted to achieve lower cost, higher reliability and better experience.

Key words: Smart home, IoT appliances, Wi-Fi module, NFC, Network config