ESP8266EX ESP-12N is encapsulated by the high performance chip. The chip is encapsulated in an advanced Tensilica L106-bit MCU, with short bit modes, support 80 MHz of base frequency, 160 MHz, supports RTOS. The ESP8266EX has the full and complete WiFi function, which can be used independently and alsoused as a slave with other Hoster MCUs, which can boot directly from the out-built Flash. In addition, the built-in high-speed buffer is beneficial for system performance. In particular, the ESP8266EX can be used as a WiFi adapter from SPI / SDIO and / or I2C / UART interface when applied to other MCU designers.