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.