- Double Layer PCB Design: This expansion card features a robust double layer PCB, ensuring stable and reliable circuit performance. Both sides are wired, eliminating issues with poor contact and unstable signal transmission. - Versatile Connectors: Equipped with a pin header and a screw terminal, you can easily choose the connector that best suits your project needs. - Compatibility: Specifically designed for the ESP32 38 pin version without holes. Please note that it is not compatible with other versions, ensuring you have a perfect fit for your development board. - GPIO Expansion: This breakout board extends one GPIO pin of the ESP32 development board to two, maximizing your pin usage. This is especially useful for smart home projects where reusing pins is essential, providing a convenient alternative to a traditional breadboard. Use Cases: 1. Smart Home Automation: Ideal for connecting multiple sensors or devices to a single GPIO pin, streamlining your home automation setup. 2. Prototyping Projects: Perfect for developers looking to quickly prototype their ideas without the hassle of breadboards and loose connections. 3. Educational Uses: A great tool for students and hobbyists learning about electronics and microcontrollers, offering a simple way to expand their projects. With its durable construction and thoughtful design, this expansion card is an essential component for anyone working with the ESP32, ensuring reliable performance and ease of use in various applications.