1. Introduction
1.1. General Overview
Espressif Systems’ Smart Connectivity Platform (ESCP) is a set of high performance, high
integration wireless SOCs, designed for space and power constrained mobile platform
designers. It provides unsurpassed ability to embed Wi-Fi capabilities within other systems,
or to function as a standalone application, with the lowest cost, and minimal space
requirement.
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Figure 1: ESP8266EX Block Diagram
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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
microcontroller-based 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
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