Welcome to the Blinkenlight Experiments. Here I document experiments that I did with the Blinkenlight shield for Arduino. The experiments range from simple beginner level light effects to completely unexpected surprises.

Sometimes low-tech is better for security, particularly when compared to choosing the. Growing use of NFC in hotel keys provides some instructive examples. Until recently most of these cards used magnetic-stripes, the same 40-year old technology found in traditional credit-cards. It is trivial to clone such cards. Taken 200ft away from the victim. It is arguably easiest to clone.