// 08 DEC 2015 12:03 -- somewhat is on the right track - need a faster photodiode realistically (faster rise/fall times for faster data / less error), and need a bloody laser to even properly test what I have now!
// also need a way to group into packets so it transmits nothing (rather than a bunch of fucking zeros) when idle - proper way to do this would be without arduinos at all and just jump the signals