Use a Drill Press as a Lathe


Whenever I need a small turned item, I resort to tricking my drill press into thinking it’s a lathe. This method is slower — you abrade the material using sandpaper or files instead of shaving it away with chisels — but with patience you can get good results. Here’s how... Read more »

Skill Builder: Advanced Arduino Sound Synthesis


When it comes to generating sound from an Arduino, many users struggle to get beyond simple beeps. With a deeper understanding of the hardware, you can use Arduino to generate any waveform you can imagine, and manipulate it in real time, from "bit banging" to morphing and fading. Here's how. Read more »

Raspberry Pi: Up and Running


For those of you who haven't yet played around with Raspberry Pi, this one's for you. In this how-to video, Matt walks you through how to get a Raspberry Pi up and running. It's the first in a series of Raspberry Pi videos that we're releasing to accompany our new... Read more »

Instant AC Power Filtering


You’ve been working hard at your Arduino-based servo project, and so far it’s working great. Time to untether it from your computer and let it run on its own, right? It works fine on USB power. It works fine on a 9-volt battery (while it lasts). You plug it into... Read more »