A light-sensitive stylus wired to a video terminal used to draw pictures or select menu options. The user brings the pen to the desired point on screen and presses the pen button to make contact.

Who needs a 1920×1080 OLED display when you can have an 8×8 matrix of LED goodness? That’s the question [Kathy] asked when she built this LED matrix light pen project. It looks simple enough – a ...

Impatient molecular biologists who need to know – now! – if their gels are done, have a new, pen-sized ally. Rather than carrying their gel trays to the dark room, they can whip out the diminutive UV ...

Microsoft's current focus on touch-display interaction - as evidenced by its pushing of Metro UI in Windows 8 and its Surface interactive tables and Windows-based tablet product lines - is clear, but ...

If you’ve ever used a hot glue gun for a craft project, you already know how tricky and messy they can be to work with. And this is partly why the handful of 3D printing pens already on the market ...

Sometimes the simplest of projects end up revealing the most interesting of things, as for example is the case with [Ryo Mukai]’s light pen for the Vectrex console. It’s an extremely simple device ...