A modern car carries 70 to 150 microcontrollers, and the network that lets them speak to each other is the most invisible piece of every vehicle on the road. We walk why CAN won the first round, how CAN FD doubled the payload, the LIN and FlexRay supporting cast, the move to automotive Ethernet and the zonal architecture replacing the flat harness, the gateway in the middle, and what an OBD-II scanner is actually doing under the hood.
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The CAN Bus and Modern Vehicle Electronics