networking class LiFi link error
@neilg On http://academy.cba.mit.edu/classes/networking_communications/index.html Physical medial -> optical the links to transmitter and receiver are broken. I found the documents at: https://web.archive.org/web/20171025035817/http://www.atmel.com/Images/Atmel-2534-RC5-IR-Remote-Control-Transmitter-on-tinyAVR-and-megaAVR_ApplicationNote_AVR415.pdf and https://web.archive.org/web/20170829010352/http://www.atmel.com/Images/Atmel-1473-RC5-IR-Remote-Control-Receiver-on-tinyAVR-and-megaAVR-Devices_ApplicationNote_AVR410.pdf respectively.