As for the other flags used in the programming commands above: When using the Arduino as an ISP programmer you must specify the speed, using ‘-b’.

The Arduino ICSP Programmer allows you to create your very own Arduino board, simply connect the programmer to your Arduino compatible board and start uploading your boot loader or sketch.

Arduino explain: “The Arduino ISP is an In-System-Programmer that is used to program AVR microcontrollers.

If you go through the Arduino IDE you can see an example sketch called “Arduino as ISP”. If you upload this code to your Arduino, it will basically act as an AVR programmer.

Arduino Builder Arduino Builder is a fully standalone utility for viewing, compiling and uploading Arduino sketch file and compiled ELF or HEX file (usually bootloader) to Arduino board with Arduino ...