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

Extruder head

Most industrial robots run on proprietary systems, but this experimental KUKA arm uses an Arduino MEGA to 3D print in 6 axes, mimicking the shapes found in nature. Despite the size of this KUKA arm with a custom toolhead attachment — a 3D printer extruder — carefully looking at the... Read more »

555-timer as an arcade stool

The 555-timer integrated circuit is one of the most famous and popular chips ever invented. Created in 1971, it’s got a near cult following with books, blogs, newsletters, and devoted fans even today. That’s why Imgur user “surfacetension” built this amazing stool in the form of a giant 555 chip!... Read more »


Make: has been able to play with the tiny new computer for a week and let us tell you, the new Pi is fast, really fast. Read more »


Friday night in West Oakland, California designers from across the Bay Area assembled for the Hot Couture 2015. The annual event held at The Crucible is not to be missed, but just in case you did, we have you covered. Guidance for this year’s designs was direct: designs should take... Read more »

Wiring of the TFT to an Intel Edison

Proving that the Intel Edison is really a full Pentium-class PC, Lutz has successfully ported Doom to the tiny board. For those who aren’t quite as old as I am and are unfamiliar with the classic title, Doom literally blew away gamers in 1993 with a combination of fast paced... Read more »

Build an inexpensive homemade o'scope for visualizing signals on your desktop OS. Read more »

James wanted a way to monitor the status of his garage door without having to actually look at the door. Fortunately, he has a knack with electronics and knows his way around connecting different sorts of systems together with code. In the initial version of the project, James used an... Read more »