Features:brand new and high qualityUsing 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:ABSSPIFlash: 32MbitBluetooth-compatible: Bluetooth-compatible 4.2BR/EDR and BLE standardsInterface: UART, SPI, I2C, PWMSerial port rate: 115200bpsOutput format: JPEG (only supported by OV2640), BMPSpectrum range: 2412-2484MHzAntenna form: onboard PCB antennaPower supply range: 5VOperating temperature:-20 C-85 CStorage 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