ESP8266EX offers a complete and self-contained Wi-Fi networking solution; it can be used to host the application
or to offload Wi-Fi networking functions from another application processor.
When ESP8266EX hosts the application, it boots up directly from an external flash. In has integrated cache to
improve the performance of the system in such applications.
Alternately, serving as a Wi-Fi adapter, wireless internet access can be added to any micro controllerbased design
with simple connectivity (SPI/SDIO or I2C/UART interface).
ESP8266EX is among the most integrated WiFi chip in the industry; it integrates the antenna switches, RF balun,
power amplifier, low noise receive amplifier, filters, power management modules, it requires minimal external circuitry,
and the entire solution, including front-end module, is designed to occupy minimal PCB area.
ESP8266EX also integrates an enhanced version of Tensilica’s L106 Diamond series 32-bit processor, with on-chip
SRAM, besides the Wi-Fi functionalities. ESP8266EX is often integrated with external sensors and other application
specific devices through its GPIOs; codes for such applications are provided in examples in the SDK.
Espressif Systems’ Smart Connectivity Platform (ESCP) demonstrates sophisticated system-level features include
fast sleep/wake context switching for energy-efficient VoIP, adaptive radio biasing. for low-power operation, advance
signal processing, and spur cancellation and radio co-existence features for common cellular, Bluetooth, DDR, LVDS,
LCD interference mitigation.