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Physical
Physical is a library for interacting with the physical world from a computer. This can broadly be broken down into two categories:
- Collecting and digitizing data from the physical world.
- Controlling devices that take physical action.
Concepts
The main concepts of Physical are:
- Peripheral: A peripheral is a board that hosts physical I/O and usually does analog to digital conversion or digital to analog conversion. A peripheral cannot function on its own, it must be connected to a node. This is more narrow than the definition of a peripheral in embedded systems generally.
- Node: A node hosts peripherals. A node can have a master but does not need one.
- Master: A master hosts nodes. It is possible for a device to be both a node and a master at the same time.