- Outstanding Performance: This product features an onboard ESP-01 WiFi module paired with a high-performance STM8S103 microprocessor. It allows for easy board mode selection and provides real-time work status display. The design includes a reserved UART debug interface and an STM8 SWIM download interface for added convenience. - Flexible Relay Modes: The relay operates in two modes: - Mode 1: Connect your phone directly to the WiFi module for instant access. - Mode 2: Use both the mobile phone and WiFi module connected to a router for enhanced connectivity. Additionally, when the ESP-01 is removed, it can function as a USB relay switch. - Extended Transmission Range: In an open environment, when your mobile phone is connected to the WiFi module, you can enjoy a stable transmission distance of up to 100 meters. When both the WLAN module and mobile phone are connected to a router, the transmission distance will vary based on the router's signal strength. - User-Friendly Configuration: The product utilizes Smartconfig technology, simplifying the process of configuring your account and password directly through the app on your mobile phone. It also supports username and password memory functions for easy access. - Practical Applications: - Home Automation: Control appliances remotely, making it ideal for smart home setups. - Remote Monitoring: Use it in security systems for real-time alerts and monitoring. - DIY Projects: Perfect for hobbyists looking to create custom automation solutions. This product combines advanced technology with user-friendly features, making it a reliable choice for enhancing your connectivity and automation needs.