What is bit arbitration?
The nodes check that the bus is idle before they transmit a signal. It is “first come first serve” basis. Whichever nodes get on the bus first will be able to transmit its signal. When collision occurs, i.e. when two or more nodes are transmitting at the same time, the node with the lowest ID will have higher priority to access the bus. The nodes that lose arbitration will immediately retransmit there signal when the higher priority node has completed its transmission.
