Parameter

• Use low-power dual-core 32-bit CPU, which can be used as an application processor.
• The main frequency is up to 240MHz, and the computing power is up to 600 DMIPS
• Built-in 520 KB 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 TF card
• Support multiple sleep modes.
• Embedded Lwip and FreeRTOS
• Support STA/AP/STA+AP working mode
• Support Smart Config/AirKiss one-click network configuration
• Support secondary development

Specifications

• Working voltage 4.75-5.25V
• SPIFlash default 32Mbit
• RAM internal 520KB + external 4MB PSRAM
• Wi-Fi 802.11b/g/n/e/i
• Bluetooth Bluetooth 4.2BR/EDR and BLE standard
• Support interface (2Mbps) UART, SPI, I2C, PWM
• Support TF card, maximum support 4G
• IO port 9
• Serial port rate default 115200bps
• Spectrum range 2400 ~2483.5MHz
• Antenna form Onboard PCB antenna, gain 2dBi
• Image output format: JPEG (only OV2640 support), BMP, GRAYSCALE
• Packaging method DIP-16
• Transmit power 802.11b: 17±2dBm (@11Mbps)
• 802.11g: 14±2dBm (@54Mbps)
• 802.11n: 13±2dBm (@MCS7)
• Receiving sensitivity CCK, 1Mbps: -90dBm
• CCK, 11Mbps: -85dBm
• 6Mbps(1/2BPSK): -88dBm
• 54Mbps (3/464-QAM): -70dBm
• MCS7 (65Mbps, 72.2Mbps): -67dBm
• Power consumption Turn off the flash: 180mA@5V
• Turn on the flash and adjust the brightness to the maximum: 310mA@5V
• Deep-sleep: The lowest power consumption can reach 6mA@5V
• Moderm-sleep: the lowest can reach 20mA@5V
• Light-sleep: the lowest can reach 6.7mA@5V
• Security WPA/WPA2/WPA2-Enterprise/WPS
• Working temperature -20 ℃~ 70 ℃
• Storage environment -40 ℃~ 125 ℃, <90%RH

Application

• Home smart device image transmission
• Wireless monitoring
• Smart agriculture
• QR wireless recognition
• Wireless positioning system signal
• And other IoT applications