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May Issue 










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Table of Contents
Advances in Measurement and Sensor Technology
Introducing Patrick Schaumont
The RL78 Green Energy Challenge Is On!
On Sale Now! 2011 Circuit Cellar CD
The DesignSpark chipKITTM Challenge has Come to an End RSS Feed

Advances in Measurement and Sensor Technology


The displays at the Design West conference in San Jose, CA made it clear that measurement and sensor technologies are leaders in embedded innovation. The May issue of Circuit Cellar features articles on a variety of measurement and sensor design projects. Log in to your edition of Circuit Cellar and read how Matt Oppenheim uses touch sensors to trigger audio tags on electronic devices. His design is intended to help visually impaired users. But you can use capacitive-touch sensors with an Android device to create the application of your choice.

If you are looking for inspiration, read the interview with Lawrence Foltzer. Interestingly, one of his first MCU-based projects was a sonar sensor. Other columnists cover accelerated testing, energy harvesting, and SNAP engine versatility. To read these articles and more, as well as download your digital issue, visit


Introducing Patrick Schaumont 


Circuit Cellar is excited to announce a new columnist, Patrick Shaumont! His columns will be on the topic of embedded security with his first article, "One-Time Passwords from Your Watch" featured in the May issue. Patrick is an Associate Professor in the Bradley Department of Engineering at Virginia Tech. His interests include embedded security, covering hardware, firmware, and software. Welcome, Patrick!



The RL78 Green Energy Challenge is On!

Engineers from around the world are competing for the title of the RL78 Green Energy Challenge Grand Prize winner! Renesas is challenging everyone to change the way the world experiences green energy by developing an eco-friendly, low-power application using the RL78 MCU. Succeed and you'll win share of a $17,500 Grand Prize.


Plus, follow Renesas on Twitter and Facebook now for a chance to win additional prizes from official contest partners. Pmods, development tools, and even more cash prizes are up for grabs. Join the RL78 Green Energy Challenge today!







Circuit Cellar's 2011 Archive CD is now available and for a limited time you save 15%! This CD-ROM contains all of the editorial articles published in 2011. Using Adobe Reader you can view all of the content the same way it was originally presented in the magazine.


Visit the CC-Webshop to take advantage of this deal and get your 2011 Circuit Cellar CD. The Elektor 2011 DVD-ROM is also 15% off. Buy them both today! 


Offer ends May 31, 2012. 

The DesignSpark chipKITTM Challenge has Come to an End

DesignSpark chipKIT Challenge logo

Could you be one of the contestants to win a share of $10,000 in cash prizes?


You've worked hard, engaged in the DesignSpark community, and put the finishing touches on your low-power design. Now it's time to see if the judges think your hot idea is a cool solution!


The judges have been busy looking over the entries to see who submitted the best design. The winners will be announced May 7th.


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CC News Notes is a monthly e-mail newsletter created for the hands-on embedded design engineers who read Circuit Cellar magazine. CC News Notes also serves as a notification to Digital and Combo subscribers that new issues are available.