Using a single sensor delivers a limited amount of information. Sensors almost always appears in networks. If you look back at previous blogposts most applications use a network of sensors to achieve their goal. For example, a single Tile node would be of limited use. You only gain full advantage of the functions when there is a large number of nodes connected through a network. Thus a large part of the development process of a sensor application is the network connecting the sensors and their driving electronics.

datalogger_CAN

(image by Vector)

 

A very important and widely adopted interface is the CAN (controller area network) messaging protocol. Originally developed by Robert Bosch GmbH for use in the automotive industry the CAN bus has huge economic importance. Over 100 million of nodes are connected each year using the CAN protocol. Nowadays the CAN bus is widespread across different industries and continues to gain  importance in aerospace industry. Air-conditioning, door management, fire detection, cabin management and the aircraft galley electronics are typically connected using a CAN bus under the ARINC standards. This makes the CAN bus suitable as the network to connect our sensors.

You can read more about the economically  importance of the CAN protocol on this site. The CAN bus is even used in livestock facilities. If you are interested in the CAN implementation you can read this introduction guide (for beginners).

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