Controlling Devices with Relays
This was a simple exercise that illustrated the use of controlling devices using a relay over a serial interface. The low-cost relay used in this example is capable of controlling any number of electrical devices. Also available are relay boards that can be expanded to up to 128 relays per serial port, not to mention analog and digital input cards.
Jason Ellison is from Fairhope, Alabama, and currently is a network analyst for Delphi. He also maintains several Linux and AIX systems at Delphi.
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Pick up any e-commerce web or mobile app today, and you’ll be holding a mashup of interconnected applications and services from a variety of different providers. For instance, when you connect to Amazon’s e-commerce app, cookies, tags and pixels that are monitored by solutions like Exact Target, BazaarVoice, Bing, Shopzilla, Liveramp and Google Tag Manager track every action you take. You’re presented with special offers and coupons based on your viewing and buying patterns. If you find something you want for your birthday, a third party manages your wish list, which you can share through multiple social- media outlets or email to a friend. When you select something to buy, you find yourself presented with similar items as kind suggestions. And when you finally check out, you’re offered the ability to pay with promo codes, gifts cards, PayPal or a variety of credit cards.Get the Guide