Sensor Walk

My sensor walk made me realize how many sensor-based electronics were all around me every day. You take certain things for granted like fire alarms, air conditioning, door locks, auto flush, auto sinks, scanners, elevators, vending machines, etc. I discovered random sensors like an electronic pencil sharpener and a self-checkout at Marston Library. Other sensors and electronics I found interesting were the library book scanners... this morning my book wasn't desensitized and I set off the alarm and locked the exit bar. The librarian used a remote control to turn it off and unlock the bar. These are interesting reactions caused by sensors.