A Stroll in the Hood

So I've been strolling through my neighbor the last few weeks looking for interesting sensors. Well, during my little walks I have only noticed atm card-readers, push buttons, and touch-screens along with cell phone touch-screens and buttons. I would occasionally see closing doors for storefronts that use a key that allows a button to be activated to bring up or down the large metal door. I also noticed building intercoms that typically have buttons, but I have seen the video intercoms before. No really interesting sensors to report. I'll still keep an eye-out for interesting sensors in the days to come. Still hoping for some interesting findings.