Arduino Uno conversion to AVRISP2 - Nov 2017
The USB to serial chip on the Uno r3 is very much not a usb to serial chip
DESCRIPTION
I needed an AVR ISP, I had a cheap chinese one based on the mega8 but was unable to find it in my stuff.
I found the solution, using an Arduino Uno as an AVR ISP 2 by rewriting the firmware of the usb to serial chip.