Greetings guypld
Have you tried downloading again the folder for the LedSensor in C? You can download them individually http://www.intel-software-academic-program.com/pages/courses#diy right where it says “Lab : Download code samples for the labs” maybe you can try again with this. Or for the Arduino side there is also a C version on page 18. http://www.intel-software-academic-program.com/courses/diy/Intel_Academic_-_DIY_-_InternetOfThings/IntelAcademic_IoT_Lab_03_A_project_in_C_and_others.pdf.
Regards
JPMontero_Intel