Abstract: Automotive electronics sector is dominant in vehicle automation. To automate different features in vehicle, there are several Electronic Control Units (ECUs). To link up these ECUs there are traditionally used point to point communication which causes to increase in wiring harness. So data transmission is not efficient. To overcome this drawback, Controller Area Network protocol widely used. This CAN protocol implemented through CAN integrated PIC controller ICs. The propose system aims to develop board which contain multiple interface facility which become compact in size and cost. In the proposed system, two UART and CAN bus interface on single board. This reduces the drawback of traditionally used approaches for vehicle automation.

Keywords: CAN (Controller Area Network), ECU, PIC Controller, Point to point communication, Rain sensor.