CLIMATE CONTROL USING CAN - LIN PROTOCOL

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AIM: - The objective of this project is to control the device based on the temperature and display the status of the parameters on the display unit.

Description: - In this project we show the CAN-LIN gateway communication. There are 3 different PIC microcontrollers which perform 3 different functions.

PIC18f458 microcontroller known as node1 (N1) function is to communicate with node2 via CAN bus and monitor the two sensors namely fuel level sensor and the temperature sensor. Based on the temperature sensor value, N1 sends commands to N2. The status of all the parameters is displayed on the LCD.

PIC18F4580 microcontroller known as node2 (N2) acts as a CAN-LIN gateway controller. It accepts commands from N1 and based on those commands it communication to node3. It also sends the update value of fuel level sensor to N1.


PIC18F2331 microcontroller known as node3 (N3) is a slave microcontroller. The device is connected to this node. Based on the command sent by N2 on LIN BUS, this node controls the device.