Книга: Haroon Rashid and Mamoon Rashid «Telephone Activated Remote Access Switch»
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Производитель: "LAP Lambert Academic Publishing" Most of us spend a significant amount of our waking hours slaving away at work and find that when we return home, we have a list of chores that need to be taken care of before we can rest in peace and quiet. Wouldn`t it be nice to be able to come home and find that the house is cool, the rice is cooked, and the clothes are freshly laundered and ready to be dried? The idea behind constructing of this device is to implement a new technology to switch on a power switch by using a Telephone System, Modem and Remote Access Switch s interface. This circuit will activate its 240V AC outlet when a predetermined number of rings occur on the phone line. The remote access switch will enable the user to turn on any appliance that is connected to it from a remote location. Remote Access Switch will use the telephone line to receive ring pulse signal from incoming call. The USB External Modem will generate a ring pulse width and send the pulse signal to Remote Access Switch s Interface... ISBN:9783659385339 Издательство: "LAP Lambert Academic Publishing" (2013)
ISBN: 9783659385339 |
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