IOT Configure STA_IF interface of ESP8266 (MycroPython firmware) to connect with WIFI network automatically on boot ESP8266 can act as both Station / WIFI client (STA_IF interface) and Access Point (AP_IF interface). AP_IF interface is active by default in MycroPython firmware on ESP826 . In Abhijit Ghosh 14 Mar 2017 · 4 min read