Specification: _x005f_x000D_ Specifications: HW-573B (CP2102 module), HW-573C (CH9102X) (optional) _x005f_x000D_ Power supply voltage: DC 5V _x005f_x000D_ Packaging size: about 105mm * 70mm * 10mm/4.13inch * 2.75inch * 0.39inch _x005f_x000D_ Packaging weight: 12g _x005f_x000D_ Micro USB power supply _x005f_x000D_ Wireless network and Bluetooth-compatible _x005f_x000D_ Extract 38 module pins from the board _x005f_x000D_ Supports I2C, SPI, and UART communication protocols _x005f_x000D_ WIFI working mode: 802.11 B/g/N/E/I _x005f_x000D_ Wireless internet frequency: 2.4 GHz _x005f_x000D_ Low power consumption, high stability, and strong universality _x005f_x000D_ Support WPA/WPA2/WPA2 Enterprise/WPS Encryption _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x Development Board 1. Module-based Design: NodeMCU-32S is a core development board designed based on module and inherits the classic design of NodeMCU 1.0, making it versatile for various applications. 2. Versatile Connectivity: The board features a variety of I/O pins that can be connected to external peripherals according to developers' needs, enabling flexible and customizable designs. 3. Easy to Use: With standard headers on both sides, using a breadboard for development and debugging becomes more straightforward and convenient. 4. Low Power Consumption and High Stability: The development board has low power consumption and high stability, making it suitable for long-term use in various applications.