Over the past two decades, the automotive industry has aggressively researched ways to exploit modern computing and electronic advances in the development of safety, reliability, and entertainment technologies for vehicles. With drivers exposed to an ever increasing number of distractions, automatic rain-sensing wiper systems become an even more appealing feature, as they work to minimize the time the driver must take his/her hands off the wheel. Most traditional systems offer intermittent as well as variable speed operation. The traditional wiper system however requires driver constant attention in adjusting the wiper speed .Traditional windshield wiper speed constantly varies according to time and vehicle’s speed. Because the manual adjustment of the wiper distracts driver's attention, which may be a direct cause accidents. In this project, adjust speed of wiper automatically cording to the amount of water on the windshield and in addition with also in advance removal of moisture inside the car while raining. The system activates the wiper to operate in full automatic mode and detect moister using CAN technology.

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8. Bosch, "CAN Specification 2.0", in Robert Bosch GmbH, 1991.
9. Working system of windshield wiperhttp://auto.howstuffworks.com/wiper.htm
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11. Rain sensor datasheet

moisture sensor (SH200) PIC 18F/16F series Microcontrollers with CAN function provisions temperature sensor moisture sensor rain level sensor