About C. J. Abate

C. J. Abate is Circuit Cellar's Editor in Chief. You can reach him at cabate@circuitcellar.com and @editor_cc.

Engineer Survey: Skills, Topics, & Preferences

The electrical engineers, academics, and students who read Circuit Cellar hail from a wide range locations across the globe, such as the US, Brazil, India, The Netherlands, Germany, the UK, and Japan. Despite having different languages and cultures, the readers share a common dedication to and passion for electrical engineering.

This is a portion of our survey results. Link to the full set of results below.

In late 2012, we surveyed a random sample of more than 1,000 members of our community on their technical interests and preferences. We asked questions such as the following: How often do you solder? How many milliamps have you felt? Do you know more than three programming languages? Do you use FPGAs? Which companies make the best embedded products? And more!

Check out the results.

Read CC25 for more survey information, as well as interesting essays on the past, present, and future electrical engineering by engineers, business leaders, professors, and students.

CC271: Got Range?

As with wireless connectivity, when it comes to your engineering skills, range matters. The more you know about a variety of applicable topics, the more you’ll profit in your professional and personal engineering-related endeavors. Thus, it makes sense to educate yourself on a continual basis on the widest range of topics you can. It can be a daunting task. But no worries. We’re here to help. In this issue, we feature articles on topics as seemingly diverse as wireless technology to embedded programming to open-source development. Let’s take a closer look.

Consider starting with Catarina Mota and Marcin Jakubowski’s Tech the Future essay, “Open-Source Hardware for the Efficient Economy” (p. 80). They are thoughtful visionaries at the forefront of a global open-source hardware project. You’ll find their work exciting and inspirational.

Stuart Ball’s Dip Meter

On page 20, Stuart Ball describes the process of designing a digital dip meter. It’s a go-to tool for checking a device’s resonant frequency, or you can use it as a signal source to tune receivers. Ball used a microcontroller to digitize the dip meter’s display.

Interested in 3-D technology? William Meyers and Guo Jie Chin’s 3-D Paint project (p. 26) is a complete hardware and software package that uses free space as a canvas and enables you to draw in 3-D by measuring ultrasonic delays. They used a PC and MATLAB to capture movements and return them in real time.

This month we’re running the third article in Richard Lord’s series, “Digital Camera Controller” (p. 32). He covers the process of building a generic front-panel controller for the Photo-Pal flash-trigger camera controller project.

Richard Lord’s front panel CPU

Turn to page 37 for the fifth article in Bob Japenga’s series on concurrency in embedded systems. He covers the portable operating system interface (POSIX), mutex, semaphores, and more.

Check out the interview on page 41 for insight into the interests and work of electrical engineer and graduate student Colin O’Flynn. He describes some of his previous work, as well as his Binary Explorer Board, which he designed in 2012.

Colin O’Flynn’s Binary Explorer Board

In Circuit Cellar 270, George Novacek tackled the topic of failure mode and criticality analysis (FMECA). This month he focuses on fault-tree analysis (p. 46).

Arduino is clearly one of the hottest design platforms around. But how can you use it in a professional-level design? Check out Ed Nisley’s “Arduino Survival Guide” (p. 49).

Standing waves are notoriously difficult to understand. Fortunately, Robert Lacoste prepared an article on the topic that covers an experimental platform and measurements (p. 54).

This month’s article from the archives relates directly to the issue’s wireless technology theme. On page 60 is Roy Franz’s 2003 article about his WiFi SniFi design, which can locate wireless networks and then display “captured” packet information.

If you like this issue’s cover, you’ll have to check out Jeff Bachiochi’s article on QR coding (p. 68). He provides an excellent analysis of the technology from a pro engineer’s point of view.

Circuit Cellar 271 is now available.

Retro Electronics (“Retronics”): Analog, Test, & Micrcontroller Tech

Pop quiz: What was the first microcontroller to leave the Earth? Find out the answer in Jan Buiting’s new “Retronics” webinar. Check out the video below.

The Tektronix 546B

If you read Circuit Cellar and Elektor magazines, you likely have as much passion for old-school electronics as you do for he new, cutting-edge technology you find at events such as the Embedded Systems Conference. Elektor editor Jan Buiting is well-known for his love of both new and old technology, and in his Retronics webinar series he presents some of his favorite old-school technologies.

In the video below, Jan explains how and where he found some of his retronics equipment. He also details how he fixed some of the systems and what he does with them. Examples include:

  • A Heathkit TC-2P Tube Checker that Jan found at lawn sale
  • Old audio equipment
  • A satellite TV receiver
  • An “Elektorscope” from 1977
  • 1980s-era test equipment
  • And more!

CircuitCellar.com is an Elektor International Media publication.

Design a Low-Power System in 2013

A few months ago, we listed the top design projects from the Renesas RL78 Green Energy Challenge. Today, we’re excited to announce that Circuit Cellar‘s upcoming 25th anniversary issue will include a mini-challenge featuring the RL78. In the issue, you’ll learn about a new opportunity to register for an RL78/G14 demonstration kit that you can use to build a low-power design.

Renesas RL78

The RL78/G14 demonstration kit (RDK) is a handy evaluation tool for the RL78/G14 microcontrollers. Several powerful compilers and sample projects will be offered either free-of-charge (e.g., the GNU compiler) or with a code-size-limited compiler evaluation license (e.g., IAR Systems).  Also featured will be user-friendly GUIs, including the Eclipse-based e2studio.

RL78G14 RDK KIT

  • 32-MHz RL78/G14 MCU board with integrated debugger and huge peripheral, including Wi-Fi, E Ink display, matrix LCD, audio ports, IR ports, motor control port, FET and isolated triac interfaces
  •  256-KB On-chip flash
  • USB Debugger cable
  • Four factory demos showcasing local and cloud connectivity through Wi-Fi

The CC25 anniversary issue is now available.