This easy to construct “Handy pen torch” electronic circuit and low component count, uses two power white LEDs for lighting. Low volt (4.8V dc) supply available from the built in rechargeable Ni-Cd ...

One of the biggest bottlenecks in any project involving custom circuitry is troubleshooting the actual circuit itself before moving to manufacturing something permanent. A new project on Kickstarter ...

Why spend time etching circuit boards and applying solder masks when all you really need is a rollerball pen and some paper? That’s what University of Illinois professors [Jennifer Lewis and Jennifer ...

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What if connecting two circuits was as easy as doodling them on paper with a pen? With Circuit Scribe, it is. Circuit Scribe is a rollerball pen that draws with conductive silver ink –no annoying ...

A teardown reveals that the Galaxy S25 Ultra still has the setup for a Bluetooth S Pen, but the actual components are missing. This follows the discovery that the phone contains a charging coil for ...

If you are one of those generations from the 90s, then you must remember how important the pen drives were back then. They are also known as USB flash drives, and till today, they remain a reliable ...

Having just reviewed Silicon Motion's new SM2320 controller and finding it to be the best portable SSD solution to date, we're back with what is the fastest USB Pen Drive on the planet. The Kingston ...