What can you do with a cheap Linux machine with limited flash and only a single free GPIO line? Probably not much, but sometimes, just getting root to prove you can is the main goal of a project ...
It ensures stable operation and avoids unexpected boot failures. EN (CH_PD) 10kΩ Pull-up to 3.3V Enable ESP8266 RST 10kΩ Pull-up to 3.3V + Push Button to GND Reset the ESP8266 GPIO0 10kΩ Pull-up to ...