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Bench Talk for Design Engineers

Bench Talk

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Bench Talk for Design Engineers | The Official Blog of Mouser Electronics


Michael Parks, P.E. is the co-founder of Green Shoe Garage, a custom electronics design studio and embedded security research firm located in Western Maryland. He produces the Gears of Resistance Podcast to help raise public awareness of technical and scientific matters. Michael is also a licensed Professional Engineer in the state of Maryland and holds a Master’s degree in systems engineering from Johns Hopkins University.


Memristors: The Circle is Now Complete
On June 9, 2015 in All by Mike Parks
Mike Parks
Charles Duell, the commissioner of the U.S. Patent and Trademark Office at the turn of the 20th-century was once misquoted as saying, "Everything that can be invented has been invented." Thanks to an intrepid librarian it was later discovered that Duell actually stated, “In my opinion, all previous advances in the various lines of invention will appear totally insignificant when compared with those which the present century will witness. I almost wish that I might live my life over again to see the wonders which are at the threshold.”
Read More »

16580 Views
Tagged With: Charles Duell, cybernetic, electronic neuron, memory, memristor, neuristor, resistor
Why Open Source Hardware Creators Win
On May 16, 2015 in Open Source by Mike Parks
Mike Parks
For many makers finding a product idea that is feasible to manufacture, as well as desirable by would-be consumers, is a lesson in design by trial-and-error. That means a lot of blood, sweat, tears, time (and money) invested in a project that many hopes are poured into. So if you’re using open hardware/software and hoping to transform your side project into a commercial product, how do you protect your product from being ripped off by a competitor?
Read More »

20428 Views
Tagged With: OSHW
Amateur Space Exploration: CubeSats
On May 4, 2015 in All by Mike Parks
Mike Parks
When Sputnik launched in 1957, it contained four antennas that transmitted a very simple radio signal that allowed the satellite to be tracked. Fast forward through the years and space exploration has become increasingly sophisticated. We have since expanded to manned spaceflight, space stations, landing on the moon, sending rovers to distant planets, and satellites of all types. In the beginning, human space exploration has required the resources that only governments could afford. Today that is changing, thanks to companies such as SpaceX and Orbital Sciences Corporation. Still, short of weather balloon experiments, space exploration by ordinary people seems a remote dream for most.
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17232 Views
Tagged With: KickSat , PhoneSat , Satellite, Space, TJ3SAT
Chip To Chip: Tips For Using I2C
On March 31, 2015 in All by Mike Parks
Mike Parks
Many integrated circuit-based sensors and output devices offer an interface protocol called Inter-integrated Circuit, commonly abbreviated as I2C. There is tremendous value in using I2C-based components in a microcontroller-based solution that can result in a much more streamlined and robust product, especially if you need to interface with multiple external I/O devices. I2C allows you to share a common data and clock bus amongst multiple devices, thus reducing the I/O pin count and the number of interconnecting wires required to get everything communicating. This blog is an attempt to provide some practical tips on integrating I2C into your next application.
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20346 Views
Tagged With: I2C, MCP4725, SCL, SDA
What Might The Future of “Personal” Computing Look Like?
On March 14, 2015 in All by Mike Parks
Mike Parks
Predicting the future of technology is a perpetual exercise in futility. But it’s fun. The evolution of personal computing is something that futurists and tech pundits like to try to predict every few years (or months). Like forecasting the weather, you are never completely right or wrong.
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18347 Views
Tagged With: Wearables
The Future Of Wearables
On March 5, 2015 in All by Mike Parks
Mike Parks
Google Glass. Samsung Wear. Apple Watch. Occulus Rift. “Wearables” is being crowned as the next big thing in consumer electronics. But is it really? Some see wearables as a fad that is being fostered by the hipster crowd and a technology industry that is searching for a few more years of market growth as the smartphone and tablet market matures.
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21232 Views
Tagged With: Google, Project Ara, Wearables
Beware of “Open Drains”
On February 27, 2015 in All by Mike Parks
Mike Parks
As you get more advanced with your circuits you will start seeing circuit design patterns that may at first glance seem a bit weird. One such design pattern that can be confusing is the “open drain,” also called the “open collector” (when TTL circuits are involved). For the purpose of this blog we will use the term open collector, though the general principles apply to both technologies: Field Effect Transistors (FET) and Bipolar Junction Transistors (BJT).
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21102 Views
Tagged With: BJT, FET, Open Collector, Open Drain
Battling the Bouncing Button
On February 10, 2015 in All by Mike Parks
Mike Parks
Mechanical buttons and switches can present unintended input trouble for embedded electronics projects. There’s an undesired effect known as “bounce.” What is bounce? When you press a button it sometimes does not cleanly change states. There is some electrical noise generated as the button rapidly oscillates between states immediately after a button is pressed but before it settles. Think of it like pulling a mass-spring system downward, letting go, and waiting for it to settle at equilibrium. Switches and buttons oscillate similarly, though the time to settle is measured in milliseconds.
Read More »

19491 Views
Tagged With: Arduino, MultiSIM Blue, oscilloscope, SR Latch
Internet of Things: Fad or Future?
On January 22, 2015 in All, IoT by Mike Parks
Mike Parks
A lot of talk in the tech world lately has centered on an idea called “The Internet of Things”. What is “IoT”, as it is commonly abbreviated? Is it just the latest in a laundry list of tech buzzwords? Or is it something that is really going to change our lives?
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22348 Views
Tagged With: Internet of Things, IoT
You’ve Got Mail: Branching Out Beyond The Arduino, Part 2
On January 5, 2015 in Open Source by Mike Parks
Mike Parks
We’re going to jump right in with this blog post. If you haven’t done so already I highly encourage you to read this article about an automated mailbox delivery project I recently completed. Also check out the first blog post in this series that discussed some key lessons learned, including the importance of reading the manual and some thoughts on open source software
Read More »

16392 Views
Tagged With: Energy Harvesting, MSP430, Open Source, Solar Power

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