I've got a breadboarded Mega328 running on internal crystal and receiving sketches beautifully!
I want to enable and use PB6 and PB7 ( the old crystal pins ) and have reading about how to adjust the pins_arduino.h header files to include them!
Since I'm quite new to this environment, I really don't know where to put this header so my arduino sketch editor can see it!
The tool I am using is "Atmega328 on a breadboard(8 MHz internal clock )
Can someone connect the missing Dots for me?