1. If you have done the process about “upload to Arduino”, and you want to use the default function such as “object avoid mode”, “line following mode” please choose “reset default program”
  1. If you want use mBlock to program the boards, “Upgrade firmware” could support all function blocks shows on the script pane.
  1. The reason of the different between two setting is we could access the memory limited of the arduino chip to put all default program and support all function blocks in mBlock.