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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

Raspberry Pirate Radio

This simple hack turns your Raspberry Pi into a powerful FM transmitter! It has enough range to cover your home, DIY drive-in movie, a high school ball game, or even a bike parade (depending on the stragglers).

The Raspberry Pi is a great platform to rapidly build fun electronics projects. And since it’s Pi Day here in the States —yes, we really do order the date by month/day/year, 3/14/15— we thought it’s a great time to share thirteen of our favorite Pi projects. This collection of projects... Read more »

Edison_Backstory_Opener_ReEdit-5

From an engineer's kitchen table to the bright lights of the CES main stage in record time. Read more »

The new Spark Electron

Meet Electron from Spark, the new board that puts GSM cellular connectivity directly on the microcontroller. With its onboard cellular antenna, this diminutive board will offer a huge range of deployment options and alleviate the hassle of using a custom cellular breakout board with your micro controller projects. They’re offering two... Read more »

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The tiny, powerful Intel Edison platform has been a bit difficult to interface with. But now two new breakout boards from DFRobot vie to become the robotics community’s must-have Edison connection. Since its debut a few months ago, the most common ways to work with Edison are two breakout boards available from Intel and the... Read more »

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 »

rpi_2_thumb

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 »