We found this Arduino AVR ISP programmer particularly interesting. AVR microcontrollers can utilize an interface called In-System-Programming. ISP allows the chip to be programmed or reprogrammed ...

With some help from the [Nils Vogil] via the RepRap IRC [Charles] got it worked out and wrote a guide for burning the bootloader using an Arduino as an ISP programmer.

Like the people in and surrounding Raspberry Pi, clever souls in and clustered around Arduino have done all sorts of things, including worked out ways for one Arduino to programme another Arduino – ...