Per Tillisch

The active fork is https://github.com/JChristensen/mighty-1284p it has compatibility with the new format in the [v1.6.3 branch](https://github.com/JChristensen/mighty-1284p/tree/v1.6.3).

I believe the active fork is: https://github.com/JChristensen/mighty-1284p/tree/v1.0.6

I believe the active fork of this bootloader is: https://github.com/JChristensen/mighty-1284p/tree/v1.0.6

When you encounter an error you'll see a button on the right side of the orange bar "Copy error messages". Click that button. Paste the error in a message here...

The Travis CI build is failing because you used true tabs in your code: - avr/cores/microcore/wiring_digital.c:24: - avr/cores/microcore/WInterrupts.c - avr/cores/microcore/wiring.c - avr/avrdude.conf - avr/variants/ATtiny13Micros/pins_arduino.h - avr/variants/ATtiny9NoMillis/pins_arduino.h - avr/variants/ATtiny10Millis/pins_arduino.h - avr/variants/ATtiny13Millis/pins_arduino...

I don't like the system added here of having a separate variant file for each micros()/millis() option. It leads to a lot of duplicate code that will be more difficult...

I wasn't suggesting adding extra **Tools > Board** menu items, rather a more efficient way to accomplish the same **Tools > Millis & Micros** functionality @bbc25185 added in this PR....

Try it with the line: ``` attiny13.upload.protocol=arduino ``` in boards.txt commented out.

Commenting out that line makes **Upload** do **Upload Using Programmer** but then we run into the old problem of platform.txt associated with the selected programmer is used for Upload Using...

> Having a copy of the "slow" programmers may be useful for other cores with slow clocks. That feature would be available either way, the core's boards.txt would just need...