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General features

• Integrated low power MCU, 1T1R 2.4GHz RF circuit, IEEE 802.11b/g/n MAC, baseband and power management system.

• Support IEEE 802.11 b/g/n and 20MHz bandwidth (IoT mode doesn't support 40MHz as default.)

• Hardware accelerated TCP/IP protocol

• Support WPA, WPA2, and hardware Crypto Engine for Advanced Fast Security

• Integrated 160MHz 32bit MCU

• Integrated 256KB SRAM, and 80KB+ free space for user applications

• Upgrade firmware via UART and I2C

• Support OTA firmware upgrade

• Support 40MHz cyrstal

• Embedded LDO, only need 3.3V power supply

• 5x5 QFN 32 pin package

Peripheral interface

• Configurable GPIOs

• 1 x I2C

• 1 x UART

• 1 x SPI to connect SPI flash memory