Many visually impaired people identify currency notes by touching them. But as people grow older, their touch sensitivity may ...

So you've already outgrown Arduino's most beginner-friendly board, the Uno, and are looking to move on to bigger, more exciting projects. In that case, the Nano family might just be what you need.

Organic electrochemical transistors (OECT) rely on the coupling between ionic and electronic species. Here, Zhang et al. show that delaying cation expulsion enables an anion-cation dual-doping ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...