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.
ESP32 is a 2.4GHz Wifi and Bluetooth combo chip designed with TSMC low power 40nm technoloty. It is optimized for the best power performance and RF performance with robustness, versatility and reliability as its great features.
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