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A Low-Cost Connection to the IoT

2014/03/05

In Circuit Cellar’s March issue, columnist Jeff Bachiochi tests the services of a company he says is “poised to make a big impact” on the Internet of Things (IoT). Established in 2011, Electric Imp of...

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Wireless Product Regulations (EE Tip #123)

2014/03/05

Are you working on a wireless design that you’d like to bring to market? If so, be sure to anticipate regulatory constraints right from the start. Planning upfront will save you a lot of time, money, ...

Read more

Internet of Things Challenge: WIZnet Connect the Magic 2014 Launches

2014/03/03

Elektor International Media (EIM) and WIZnet Co, Ltd today officially launched the WIZnet Connect the Magic 2014 Design Challenge, which is a five-month-long contest for electrical engineers, students...

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Electrical Engineering Crossword (Issue 284)

2014/03/03

The answers to Circuit Cellar’s March electronics engineering crossword puzzle are now available. Across 1.    CROSSEDFIELDAMPLIFIER—This vacuum tube is capable of high output power [three words] 3. ...

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3-D Integration Impact and Challenges

2014/02/28

People want transistors—lots of them. It pretty much doesn’t matter what shape they’re in, how small they are, or how fast they operate. Simply said, the more the merrier. Diversity is also good. The ...

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Evaluating Oscilloscopes (Part 4)

2014/02/27

Part 1 Part 2 Part 3 Part 4 In this final installment of my four-part mini-series about selecting an oscilloscope, I’ll look at triggering, waveform generators, and clock synchronization, and I’ll w...

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  • A Low-Cost Connection to the IoT
  • Wireless Product Regulations (EE Tip #123)
  • Internet of Things Challenge: WIZnet Connect the Magic 2014 Launches
  • Electrical Engineering Crossword (Issue 284)
  • 3-D Integration Impact and Challenges
  • Evaluating Oscilloscopes (Part 4)

Recent Posts

A Low-Cost Connection to the IoT
by Mary Wilson on 2014/03/05
in CC Blog
This shows the I2C interface Bachiochi designed to enable available clamp-on current sensors to be monitored. He added four of these circuits to a PCB, which includes the circuitry for an imp card.

In Circuit Cellar’s March issue, columnist Jeff Bachiochi tests the services of a company he says is “poised to make a big impact” on the Internet of Things (IoT). Established in 2011, Electric Imp offers a flexible connectivity platform meant … Continue reading →

Wireless Product Regulations (EE Tip #123)
by Circuit Cellar Staff on 2014/03/05
in EE Tips
CE Mark

Are you working on a wireless design that you’d like to bring to market? If so, be sure to anticipate regulatory constraints right from the start. Planning upfront will save you a lot of time, money, and hassle. Electrical engineer … Continue reading →

Traveling With a “Portable Workspace”
by Nan Price on 2014/03/04
in Workspaces
Raul_Alvarez_Workspace _Photo_1

As a freelance engineer, Raul Alvarez spends a lot of time on the go. He says the last four or five years he has been traveling due to work and family reasons, therefore he never stays in one place long … Continue reading →

Internet of Things Challenge: WIZnet Connect the Magic 2014 Launches
by Circuit Cellar Staff on 2014/03/03
in CC Blog
WIZnet's WIZ550io auto configurable Ethernet controller module includes a W5500, transformer, & RJ-45.

Elektor International Media (EIM) and WIZnet Co, Ltd today officially launched the WIZnet Connect the Magic 2014 Design Challenge, which is a five-month-long contest for electrical engineers, students, and DIYers to develop innovative, ’Net-connected electronic systems around a WIZNet WIZ550io … Continue reading →

3-D Integration Impact and Challenges
by Eby Friedman on 2014/02/28
in Tech The Future
silicon chip

People want transistors—lots of them. It pretty much doesn’t matter what shape they’re in, how small they are, or how fast they operate. Simply said, the more the merrier. Diversity is also good. The more different the transistors, the more … Continue reading →

Evaluating Oscilloscopes (Part 4)
by Colin O'Flynn on 2014/02/27
in CC Blog
waveform

Part 1 Part 2 Part 3 Part 4 In this final installment of my four-part mini-series about selecting an oscilloscope, I’ll look at triggering, waveform generators, and clock synchronization, and I’ll wrap up with a series summary. My previous posts … Continue reading →

Client Profile: ImageCraft Creations, Inc.
by Circuit Cellar Staff on 2014/02/26
in Client Profiles
CorStarter prototyping board

2625 Middlefield Road, #685, Palo Alto, CA 94306 CONTACT: Richard Man, richard@imagecraft.com imagecraft.com EMBEDDED PRODUCTS:ImageCraft Version 8 C compilers with an IDE for Atmel AVR and Cortex M devices are full-featured toolsets backed by strong support. CorStarter-STM32 is a complete … Continue reading →

DDS Basics (EE Tip #122)
by Circuit Cellar Staff on 2014/02/25
in EE Tips
Figure 1: The most basic digital signal generator is built with a simple binary counter. Its output sequentially addresses the rows of a memory, which holds the successive points of the output signal. It is then converted to an analog signal and filtered.

The simplest form of a digital waveform synthesizer is a table look-up generator (see Figure 1). Just program a period of the desired waveform in a digital memory (Why not an EPROM for old timers?), connect a binary counter to … Continue reading →

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