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.

That’s the question [Kathy] asked when she built this LED matrix light pen project. It looks simple enough – a 64-LED matrix illuminates as the pen draws shapes. But how does the circuit ...

Using a device called Graphic 1, they can draw and manipulate circuit designs directly on a cathode ray tube with an electronic light pen, allowing for rapid prototyping and testing of ideas.

The E-PL6 updates the E-PL5, and is equipped with ISO LOW (equivalent to 100) mode for enjoyable defocusing effects, as well as new functions such as Interval Shooting, and Time-lapse Movie.

Buying the right camera, lens, accessory or software to suit your photography is really important. Our product reviews offer independent views with hands-on opinion and honest verdicts aimed to ...

Wait for a moment, then remove the pen to start writing on your Surface. When the LED light on your Slim Pen turns amber, place it in the charging base to recharge the battery. See the table below ...

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 ...