upload_flags¶

Type: String | Multiple: Yes

Extra flags for uploader. Will be added to the end of uploader command. If you need to override uploader command or base flags please use extra_scripts.

This option can also be set by global environment variable PLATFORMIO_UPLOAD_FLAGS.

Example

Please specify each flag/option in a new line starting with minimum 2 spaces.

[env:atmega328pb]
platform = atmelavr
board = atmega328pb
framework = arduino
upload_flags =
  -P$UPLOAD_PORT
  -b$UPLOAD_SPEED
  -u
  -Ulock:w:0xCF:m
  -Uhfuse:w:0xD7:m
  -Uefuse:w:0xF6:m
  -Ulfuse:w:0xE2:m