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Top 20 Interview questions with answers of ESP8266
What is ESP8266? Answer: ESP8266 is a low-cost Wi-Fi microcontroller developed by Espressif Systems. What is the operating voltage of ESP8266 and can it function below or above 3.3V? Answer: The ESP8266 operates at 3.3V. It cannot reliably function below 3.3V, as it may become unstable or fail to boot. Similarly, applying voltage above 3.3V…