David Scheltema

David Scheltema

I love to tinker and write about electronics. My days are spent building projects and working as a Technical Editor for MAKE.

Latest from David Scheltema

Cory Doctorow passionately explains why the DMCA is about the worst thing ever

O’Reilly Media held its annual Solid conference this week in San Francisco. It’s an annual show  covering “Hardware, Software & the Internet of Things.” We found it eye-opening, informative, and occasionally controversial. Here’s some of what we heard at this year’s show: Synthetic Biology Joichi Ito, Director of the MIT Media Lab, explained... Read more »

clock

While cleaning out an old laptop’s filesystem back in October, David West discovered a few videos he took of a mechanical clock atop the South Ward Meeting Hall in Portsmouth, New Hampshire. Years before his digital find, he worked in that very building and became so interested by the clock’s... Read more »

finished

Electronics greeting cards are a great, approachable project for beginners to assemble in under an hour. You won’t need to plug in a soldering iron, since these cards are wired using a special conductive foil tape. Not only is this tape conductive, it’s super sticky and it remains conductive even... Read more »

Voltera V-One depositing blue, insulating ink over  silver, conductive ink

  Several weeks ago at Maker Faire Bay Area, I caught up with Voltera co-founder Alroy Almeida to learn more about the Voltera V-One, a conductive ink printer. The V-One is a slick device. Not only does it extrude conductive ink, but it can also be configured to deposit insulating... Read more »

Software-defined radios (SDR) are gaining in popularity, and it's not hard to see why — using them, your computer can tune into in an enormous range of frequencies, including FM radio, unencrypted police and fire bands, aircraft transponders, and in many countries, digital TV. Read more »

bikehero

Over the years at Make: there have been a ton of bike related builds, maintenance tips, and wacky modifications. It makes sense, as most bikes don’t come with much beyond the essentials to pedal and steer around town. Whether it’s adding a practical accessory such as charging your cell phone,... Read more »

DJ Qbert Scratches Tesla Coil-HP

It doesn’t get much better than the world renowned DJ Qbert scratching insanely fast, except when every scratch is not just expressed as sound, but also sparks off of a tesla coil. That’s exactly what took place during Maker Faire Bay Area when DJ Qbert took to the stage to... Read more »