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Updated : 16/10/2016

One-Wire Devices


One-Wire is a device communications bus system designed to provides low-speed data, signaling, and power over a single signal. Fine, so we have an inexpensive communication bus and a range of sensors that either count pulses, measure voltage, measure temperature or act as a switch and we can collect information from these sensors which we can then store, analyse, and act on. The question remains how do we get from a physical phenomenom to a voltage, pulse or temperature? This is where devices come to the rescue, they respond to a physical phenomenom to produce a voltage, pulse or temperature. With a little ingenuity almost all the phenomenom that we may be interested in a home environmen can be, measured with a relatively in-expensive device. If it makes you more comfortable think of a device as an instrument or detector with a voltage output proportional to the phenomenom being measured.

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