[platformio] env_default = d1_mini [common] platform = espressif8266 flash_mode = dout build_flags = -g -w ;build_flags = -g -w -DBUILD_TIME=$UNIX_TIME wifi_settings = ; hard code if you prefer. Recommendation is to set from within the app when in Serial or AP mode ;wifi_settings = '-DWIFI_SSID="XXXX"' '-DWIFI_PASSWORD="XXXX"' lib_deps = CRC32 CircularBuffer JustWifi AsyncMqttClient ArduinoJson ; https://github.com/bblanchon/ArduinoJson#v5.13.5 OneWire [env:d1_mini] board = d1_mini platform = ${common.platform} framework = arduino lib_deps = ${common.lib_deps} build_flags = ${common.build_flags} ${common.wifi_settings} board_build.flash_mode = ${common.flash_mode} upload_speed = 921600 monitor_speed = 115200 ; for OTA comment out these sections ;upload_protocol = espota ;upload_port = ems-esp.local