9. Interacting with Your World, Part 1: Sensors
Whereas some projects for embedded systems such as the BeagleBone Black simply enclose the board attached to the network and use the board as a computer resource or as a server, many projects such as robotics, home automation, and environmental sensing rely on gathering information about the physical world around the project. In this chapter, you will get a better feel for how to utilize sensors on the BeagleBone Black.
We should start with a basic concept: What is a sensor? A sensor is a form of transducer, which is a device that takes energy as input and outputs it as another form of energy. Sensors, in general, convert a change in some energy and produce an electrical signal as ...