•SPI Flash: Default 32Mbit
•RAM: Internal 520KB+ External 4M PSRAM
•Bluetooth: Bluetooth 4.2 BR/EDR and BLE standard
•Wi-Fi: 802.11 b/g/n/e/i
•Support Interface: UART, SPI, I2C, PWM
•Support TF Card: Maximum support 4G
•IO Port: 9
•Serial port rate: Default 115200 bps
•Image Output Format: JPEG (Only OV2640 support), BMP.GRAYSCALE
•Spectrum Range: 2412 -2484MHz
•Antenna Form: Onboard PCB antenna, gain 2dBi
•Transmit power: 802.11b: 17+/-2 dBm (@11Mbps), 802.11g: 14+2 dBm (@54Mbps), 802.11n: 13+/-2 dBm (@MCS7)
•Safety: WPA/WPA2/WPA2-Enterprise/WPS
•Power Supply Range: 5V
•Operating Temperature: -20 ~85 degree Celsius
•Color: Black
•Size: 27x40.5x4.5mm
•Support OV2640 and OV7670 cameras, built-in flash
•Support STA/STA+ap working mode
•Low-power dual-core 32-bit CPU for application processors