Compatible with ESP-IDF development environment and Arduino IDE for versatile programming options. Supports a wide voltage input range of DC 5-60V, making it suitable for various applications. Equipped with a 5V-10A relay for reliable control of high-power devices. Reserved UART pin allows for easy integration and expansion of functionalities. Programming can be done via USB or UART, providing flexibility in development. This product is designed for developers looking for a robust and flexible solution for their projects. With compatibility for both ESP-IDF and Arduino IDE, it allows for a wide range of programming options. The device supports a voltage input range of DC 5-60V, making it adaptable to different power requirements. The inclusion of a 5V-10A relay ensures reliable control over high-power devices, while the reserved UART pin facilitates easy integration with other components. Additionally, the dual programming methods via USB and UART enhance the development experience, making it a versatile choice for various applications. Color: Blue Material: PCB Package Contents: 1* Bluetooth Single-Channel Relay Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.