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Explore our growing cookbook of DIY projects for the workshop, kitchen , garage, and backyard. Learn new skills, find family fun , build a robot or a rocket .
EIA-485 (formerly RS-485 or RS485) is an OSI Model physical layer electrical specification of a two-wire, half-duplex, multipoint serial connection. The standard specifies a differential form of signalling. The difference between the wires? voltages is what conveys the data. One polarity of voltage indicates a logic 1 level, the reverse polarity indicates logic 0.
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Airport fiction blows. A look at books other engineers are reading and why you should read them, too. Recommend and write a review yourself. Email Naomi Price .
As part of a continuing feature on Embedded.com , the editors have been working with publishers of engineering and programming books, selecting material from recent embedded hardware and software titles for posting on the site. As a part of our Embedded Book department, collected here are some of the selections posted so far, with new ones added each week as they become available: 2008 In a four part series based on their contribution to " Multiprocessor Systems-On-Chips ," edited by Wayne Wolf and Ahmed Amine Jerraya, the authors cover the basics of designing energy-aware multiprocessors - Part 1: Reducing CPU active and standby energy Part 2: Reducing active and standby energy in memory and cache Part 3: On-Chip communications impact on MPSoC power Part 4: Advanced interconnects and software issues