MIT researchers create wearable sensor that turns your thumbnail into a touchscreen
Researchers at the MIT Media Lab are developing a new wearable device that turns the user’s thumbnail into a miniature wireless track pad. Called NailO, the innovation is a nail-mounted gestural input surface. Using capacitive sensing on printed electrodes, the interface can distinguish on-nail finger swipe gestures with high accuracy (> 92%). NailO works in real-time: the researchers miniaturized the system to fit on the fingernail, while wirelessly transmitting the sensor data to a mobile phone or PC.