Program examples for the Atmega32U4 [1] microcontroller: embedded electronics bachelor course at Besancon university (France)
For Debian/GNU Linux: sudo apt-get install gcc-avr avr-libc avrdude to install the tools, and make in each
example directory to compile each program.
See http://jmfriedt.free.fr (under bachelor -> Licence 3 EEA, 5 TPs/TDs (2nd semestre)) for lab session syllabus using these programs (in French).
[1] http://ww1.microchip.com/downloads/en/devicedoc/atmel-7766-8-bit-avr-atmega16u4-32u4_datasheet.pdf