Built-in OV2640 camera and digital microphone, supporting image recognition and voice processing. Features a 40-pin GPIO interface, allowing connection to Raspberry Pi HAT modules for various IoT applications. Integrated lithium battery charging, supporting battery charging and discharging, as well as USB power supply. Compatible with Arduino IDE and ESP-IDF, offering seamless integration with the ESP-WHO application. Equipped with 8MB PSRAM and 4MB FLASH memory, with support for SD card expansion. Includes CP2102 USB to UART chip for convenient serial debugging and downloading. Features 4 LED indicators for easy monitoring of module status. Provides comprehensive manual support information. Wi-Fi Standard: 802.11b/g/n Bluetooth Standard: Bluetooth 4.2, including Classic Bluetooth (BR/EDR) and Bluetooth Low Energy (BLE) Processor: 240 MHz Xtensa LX6 dual-core processor Camera: OV2640 (UXGA 1622x1200) SRAM: 520 KB + 8 MB Flash: 448 KB + 4 MB Input Voltage: 3.3V-5V Operating Voltage: 3.3 V Charging Current: 1A@5V Total Machine Consumption: 7.7mA at 5V (ESP32 deep sleep) Product Size: 65mm x 30.5mm Operating Temperature: -40°C to 85°C Color: Blue Material: ABS + Metal Size: 65mm x 30.5mm Package Contents: 1 x ESP32 Development Board 1 x OV2640 Camera 1 x USB Cable Only the above package content is included; other products are not. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.