1-Wire is a device communications bus system designed by Dallas Semiconductor Corp. that provides low-speed data, signaling, and power over a single signal. It is typically used to communicate with small inexpensive devices such as digital thermometers and weather instruments.
One distinctive feature of the bus is the possibility of using only two wires – very simple and cost effective decision.
Dependent on function, native 1-Wire devices are available as single components in integrated circuit and have very small packaging. Manufacturers also produce devices more complex than a single component that use the 1-Wire bus to communicate.
Systems of sensors and actuators can be built by wiring together 1-Wire components. Each component contains all of the logic needed to operate on the 1-Wire bus. These can be temperature sensors, timers, voltage and current sensors, battery monitors.
a.System with conjunction of 1-Wire Net gives a very inexpensive and reliable solution of getting data from plenty sensors and weather devices.