Set up ESP8266 build environment for ESP01 and SDK 3.x - Threetwosevensixseven/espupdate GitHub Wiki
The Espressif RTOS SDK v3.x and AT command set can be built for the ESP8266-01.
Follow the setup and build instructions in this detailed article.
The Espressif RTOS SDK v3.x and AT command set can be built for the ESP8266-01.
Follow the setup and build instructions in this detailed article.