After flashing MiniCore as the bootloader on Uno (clone) and two Nanos (clones) the ArduinoISP sketch stops working on them However, ArduinoISP sketch works fine on ...
I cannot have D13 blink at all during boot, it is attached to a low side driver which controls a fuel injector. I also have no use of a bootloader. Rather than mess with modifying a bootloader to not ...