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LIN Bus Protocol – Hardware Constituents, Working and Applications

  LIN is a sophisticated network that is now employed in the automobile industry. If we consider the former network in the automotive industry, it was full of mechanical components, but it has now been replaced by an intelligent mechatronics system. LIN Bus Hardware The LIN standard was created to enable for the use of very low-cost hardware nodes in a network. It is a single-wire, low-cost network based on ISO 9141. Microcontrollers with UART capabilities or specialized LIN hardware are employed in today's vehicle networking topologies.   The microcontroller creates (partially) all LIN messages and is connected to the LIN network through a LIN transceiver (simply speaking, a level shifter with some add-ons). Working as a LIN node is merely one aspect of the capability available. This transceiver may be included in the LIN hardware and act as a pure LIN node with no additional functionality. LIN Bus Working Principle A LIN bus operates in a reasonably simple manner. ...
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LIN Bus Protocol – A Brief Overview

The Local Interconnect Network (LIN) is an embedded networking standard for connecting devices at a minimal cost, with most of its uses in the automotive industry. It is a single-wire serial network protocol that can enable up to 19.2 Kbit/s communications across a bus length of 40 metres. The demand for a low-cost serial network increased as the technologies and facilities incorporated in the automobile developed further. This was because the CAN bus was too expensive to construct for every component in the car. Automobile manufacturers began employing several serial communication protocols, which caused compatibility issues. In applications where the bandwidth and versatility of CAN are not required, LIN enables cost-effective communication. The common serial universal asynchronous receiver/transmitter (UART) included in most recent low-cost 8-bit microcontrollers can be used to implement LIN quite cheaply. LIN Bus Topology and Behavior The LIN Bus is a 16-node broadcast seri...
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