;PlatformIO Project Configuration File ; ; Build options: build flags, source filter ; Upload options: custom upload port, speed and extra flags ; Library options: dependencies, extra library storages ; Advanced options: extra scripting ; ; Please visit documentation for the other options and examples ; https://docs.platformio.org/page/projectconf.html [env:d1] platform = espressif8266 board = d1 framework = arduino ; change microcontroller board_build.mcu = esp8266 ; change MCU frequency board_build.f_cpu = 80000000L upload_protocol = esptool