Equipped with high-performance Xtensa 32-bit LX7 dual core processor, with main frequency up to 240MHz. Support 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE). Built-in 512KB and 384KB ROM, stacked 4MB Flash and 2MB PSRAM. Features a stamp hole design and onboard ceramic antenna, making it easy to integrate into user-designed base plates. Supports flexible clock configuration, separate module power settings, and other controls to enable low power consumption across multiple scenarios. Integrated USB-to-serial port controller, with 34 GPIOs exposed for flexible peripheral function configuration. Color: Blue Material: Plastic + Metal Package Contents: 1 x Development Board 2 x Pin Headers Note: The package includes only the items listed above; other products are not included. Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.