Luos uses a communication protocol called RobusBus communication protocol used by Luos. to communicate with other containers.
Luos can work on a single node or create a network for the communication between containers located on different nodes. This communication goes through a physical layer, which must be adapted to your own design (through the file
To create a Luos network, various serial bus technologies can be chosen to fit with your design, however Luos provides 2 default references designed to faciliate Luos Library integration and easy network creation. One design is based on RS485, responding to many technical issues of a serial bus like multimastering, speed, robustness and safety, etc. The second one is based on a usart half-duplex called One-wire.
List of advantages and drawbacks for each bus:
|One-wire||Needs only 4 GPIO; Simple; 100% Collision detection||No recessive bit and no collision avoidance; Short distance wires; Less nodes connectable to network; 1 Mbps|
|RS485||Noise immunity; Long distance wires; 256 nodes connectable to network; 10 Mbps||Needs 6 GPIO and a RS485 tranceiver; Collision avoidance not secured|