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Containers

A container is a block of code which will provide functionality. Containers are able to communicate with any other containers present in the Luos network.

A container can be an application or a driver.

Each container provides a particular set of tasks such as managing a motor, handling a laser range finder, or more complex operations like computing an inverse-kinematics.

Each container is hosted in a single nodeHardware element (MCU) hosting and running Luos and hosting one or several containers. (MCU), but a node can handle several containers at the same time and manage communication between them and between other containers hosted in other nodes, using the same network interface.

As a developer you will always develop your functionalities into containers, and never into the main() program. The only information that should be put on the main() code are MCU setup parameters and containers' run functions.

Container properties

To properly work, each container has some properties allowing other containers to recognize and access it:

NameDescriptionFormat
IDThe ID is a unique number given to each container depending on their physical position. The system automatically assigns each ID during the detection phase. If you move a container from a microcontroller A to a microcontroller B on a given device, the ID will change. In the same way, if you change the wiring order of a microcontroler on the network on a given device, the ID will change too.Integer
e.g. Id=1
TYPEThe type defines the container purpose. A few types are predefined and can be used, or new ones can be created. The container type can't be changed after container initialization.String
e.g. type=DISTANCE_MOD
ALIASAlias is the name of the container. It's used to easily identify a container. Each container has a default alias which can be changed by users. For example, a container with the default alias motor_mod can be named left_knee_motor by user. This new name will be stored in the non-volatile memory of the board. As we don't want to have multiple containers with the same name, a duplicate name on your system will be automatically assigned with an incrementing number at its end, in the network. You can go back to the default name by setting a void name ("") to a container.String
e.g. alias="gate"
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