The ESP32-CAM-MB module can operate independently as the smallest system. A new WiFi + Bluetooth dual-mode development board based on ESP32 design, using built-in PCB antenna, with 2 high-performance 32-bit LX6CPUs, using 7-level pipeline architecture, main frequency adjustment range from 80MHz to 240Mhz. Ultra-low power consumption, deep sleep current is as low as 6mA. It is an ultra-small Wi-Fi + BT / BLE SoC module. ESP32-CAM-MB adopts a Micro USB interface, a convenient and reliable convenient connection method to be applied to various terminal IoT hardware.