1. Powerful performance: the ESP32 expansion board has a built-in powerful dual-core 32-bit processor, which supports Wi-Fi and bluetooth functions, allowing you to build Internet of Things projects conveniently and quickly. 2. Easy to develop: it is suitable for many development environments and languages, and can be downloaded through the Micro-USB interface, which is very convenient. 3. Rich : it is equipped with quite rich hardware interface resources, which can connect many sensors and other components, basically meeting your needs in the project. 4. Small and portable: ESP32 expansion board is small in size and easy to carry. It can be easily integrated into devices and can be easily handled in scientific research projects and daily practices.<br><br>Colour:As Shown Material:Plastic<br><br>Package Contents: 1 * ESP32 expansion board<br><br>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.