ESP8266EX is among the most integrated Wi-Fi chips in the industry. Measuring just 5mm x 5mm, ESP8266EX requires minimal external circuitry and integrates a 32-bit Tensilica MCU, standard digital peripheral interfaces, antenna switches, RF balun, power amplifier, low noise receive amplifier, filters and power management modules - all in one small package.
The WiFi module hosts the ESP8266 SoC with an integrated TCP/IP protocol stack that can give any microcontroller access to a 802.11 b/g/n WiFi network.
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