====== Burning the Arduino Bootloader ======

===== Using an Arduino Uno as the ISP =====
TL;DR:

  - Select the correct port in //Tools > Port//
  - Load the ArduinoISP sketch from //Files > Examples// into the Arduino that will function as the programmer.
  - Select "Arduino as ISP" under //Tools > Programmer//
  - Select the correct target microcontrller type in //Tools > Board// (e.g. Arduino/Genuino Uno for ATMEGA328P-PU)
  - Wire up the target microcontrller to the Arduino that's functioning as the programmer.
  - Select //Tools > Burn Bootloader//

I currently get the following warning:

''avrdude: WARNING: invalid value for unused bits in fuse "efuse", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xfd instead of 0x05 (double check with your datasheet first).
''

Things seem to work right now, but it looks like there might be trouble ahead.