Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Color: Black Green _x005f_x000D_ Material: PCB _x005f_x000D_ Style: _x005f_x000D_ A: 1 x Expansion board _x005f_x000D_ B: 1 x Expansion board + 1 x CP2102 Driver Chip MICRO USB Interface Development board _x005f_x000D_ Processor: Dual Core Tensilica Xtensa 32-bit LX6 _x005f_x000D_ Working voltage: 2.3~3.6V _x005f_x000D_ Working current: 80mA _x005f_x000D_ Clock frequency: 80~240MHz _x005f_x000D_ Flash memory: 4MB _x005f_x000D_ Data rate: 54Mbps _x005f_x000D_ Static random access memory: 512KB _x005f_x000D_ Important note: ESP32 Breakout Board GPIO 1 into 2 can only be compatible with 30 Pins ESP32, which is for reference only: NodeMCU-32S Lua 30Pin _x005f_x000D_ Size: About 70x60mm/2.75x2.36inch _x005f_x000D_ Weight: 30g _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_ _x005f_x000D_ Included: _x005f_x000D_ 1 x Expansion Board _x005f_x000D_ Or _x005f_x000D_ 1 x ESP-WROOM-32 development board _x005f_x000D_ 1 x Expansion Board 1. Versatile and Powerful: The ESP WROOM 32 is a powerful WiFi-BT-BLE MCU module suitable for various applications, from low-power sensor networks to the most demanding tasks like voice coding, music streaming, and MP3 decoding. Its core is the ESP32S chip, which is designed for scalability and adaptability. It has two CPU cores that can be controlled or powered independently, with clock frequencies adjustable between 80 MHz and 240 MHz. 2. Rich Peripheral Integration: The ESP32S integrates rich peripherals, including capacitive touch sensors, Hall sensors, low-noise sensor amplifiers, for SD card interfaces, Ethernet, high-speed SDIO/SPI, UART, and I2C. This makes it an excellent choice for projects that require many different types of sensors and interfaces. 3. Dual-mode WiFi and Bluetooth-compatible: This circuit board uses the 2.4 GHz dual-mode WiFi and Bluetooth-compatible chip ESP-WROOM-32, with 40-nanometer low-power technology. This combination delivers both fast wireless internet connectivity and low-power Bluetooth-compatible communication capabilities. 4. Stable Design: The expansion board features a two-layer design with a single pin on each side, providing stable and reliable contact and signal transmission for your ESP32 board. This design ensures that data transfer is consistent and reliable, even under tough conditions.