Description Features: brand new and high quality Using low-power dual-core 32-bit CPU, which can be used as an application processor. Main frequency is up to 240MHz, and the computing power is up to 600 DMIPS. Built-in 520KB SRAM, external 8MB PSRAM.Support UART/SPI/I2C/PWM/ADC/DAC and other interfaces. Support OV2640 and OV7670 cameras, built-in flash. Support picture WiFI upload.Support multiple sleep modes and STA/AP/STA+AP working mode Specifications: Material:ABS SPIFlash: 32Mbit Bluetooth-compatible: Bluetooth-compatible 4.2BR/EDR and BLE standards Interface: UART, SPI, I2C, PWM Serial port rate: 115200bps Output format: JPEG (only supported by OV2640), BMP Spectrum range: 2412-2484MHz Antenna form: onboard PCB antenna Power supply range: 5V Operating temperature:-20 C-85 C Storage environment:-40 C-90 C. Size:Approx.27x40.5x4.5mm/1x1.59x0.18inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Development Board