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Posts Tagged ‘element14’

USB used as an Analog-RF Port

Tuesday, January 26th, 2016

Most associate USB and it’s hardware as a digital and system data transfer protocol only.  Thinking of USB in terms of Analog and RF has only recently been a subject of interest in USB design, a necessity with the advent of USB 3 speeds and protocols.   In fact, RF effects become dominant in the data transfer speeds involved with in USB 3.    CurrentRF has developed a methodologies and technologies that allow server and network device USB ports, normally thought as digital and system data transfer ports, to be used as Analog/RF pickup ports for system noise and power reduction.

If one opens and ignores the data lines used for any flavor of USB, and focuses only on the resident +5V power and ground lines, one will see a rich source of RF frequencies of significant magnitude, that would enable energy harvesting techniques to be employed to recover this resident, generated energy.  In fact, if one utilizes an ac coupled spectrum analyzer of sufficient bandwidth, one will not only see frequency spikes and noise related to USB data transfers, but “coupled in” frequencies and noise energies related to other aspects of servers and network devices.

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Survey: C/C++ Preferred Language among EEs

Monday, April 7th, 2014

Everyone loves a good language war. I am, of course, talking about programming languages. Despite the myriad of programming languages available in the modern electronics industry today, C and C++, first developed in the 1970s and 1980s, are still viewed as the most important starting points for engineers.

element14, an online community of more than 220,000 design engineers and hobbyists, recently conducted a survey of preferred programming languages and more than 100 respondents submitted their answers. About 54% of those surveyed deemed C/C++ the most important, with Python as the second most popular choice garnering 18% of the vote.

The remaining languages scored as follows:

  • Assembly (9% of the vote)
  • Java (8% of the vote)
  • BASIC (4% of the vote)
  • HTML/CSS (2% of the vote)
  • PHP (1% of the vote)

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