Finally assembling my mobo - and I may need to change the LPF code - probably going to use port D rather than the I2C expander
Didn't want to download 500Mb of AVR studio, so I have used native Linux tools
avr-gcc 4.8.1 (borrowed from the Arduino 1.5.6 IDE), dfu-programmer 0.7.0, LUFA-140928
Mobo-ATmega32U2-1-07 source code
Needed a few tweeks to match the new LUFA version, but it compiles and seems to run (LCD updates, MoboControl05 seems to work)
MoboControl05.py needs the right fonts (otherwise the GUI elements don't fit), but nothing too difficult
Size for the 05 version is 38501 vs 38489 in the original tar file.
Is this stuff useful to anyone else - and if so, how should I contribute back to the group?
73, happy new year