Video: 3-D Printing with Liquid Metals and Flexible Electronics

3-D printing with liquid metals: a line of dolls

In the October issue of Circuit Cellar, Collin Ladd and Dr. Michael Dickey will be writing an essay about a North Carolina State University group’s fascinating research into 3-D printing with liquid metals. “Most 3-D printers currently pattern plastics, but … Continue reading


Using Socially Assistive Robots to Address the Caregiver Gap

The socially-assistive robot

Editor’s Note: David Feil-Seifer, a Postdoctoral Fellow in the Computer Science Department at Yale University, wrote this  essay for Circuit Cellar. Feil-Seifer focuses his research on socially assistive robotics (SAR), particularly the study of human-robot interaction for children with autism … Continue reading


The Growing Importance of Control Theory for DIYers

Brian Douglas

Control system theory is a branch of engineering that handles how to manipulate a dynamical system’s inputs to change the behavior or outcome of the system to something that is desired. The concept is simple enough to understand. In fact, … Continue reading


Linux Home Automation

Neil Cherry

My first home automation (HA) project included an Atari 800XL, a Heathkit X10 interface, and the “Build the Home Run Control System” article series from Steve Ciarcia’s Circuit Cellar column (BYTE, 1985). I was forever hooked on HA. Eventually, I … Continue reading


The Future of Open-Source Hardware for Medical Devices

Fergus Dixon's embedded DNA sequencer project (Source: F. Dixon)

Medical technology is changing at a rapid pace, but regulatory compliance is also becoming increasingly harder. Regulatory compliance can act as a barrier to innovation, but it is a necessary check to ensure quality medical care. For small companies, aligning … Continue reading


The Future of Data Acquisition Technology

Maurizio Di Paolo Emilio

By Maurizio Di Paolo Emilio Data acquisition is a necessity, which is why data acquisition systems and software applications are essential tools in a variety of fields. For instance, research scientists rely on data acquisition tools for testing and measuring … Continue reading


Can MoS2 Outperform Silicon?

Saptarshi Das

After decades of relentless progress, the evolutionary path of the silicon CMOS industry is finally approaching an end. Fundamental physical limitations do not enable silicon to scale beyond the 10-nm technology node without severely compromising a device’s performance. To reinforce … Continue reading