ABSTRACT:
The Rain Tracker automotive rain sensor, senses rain or snow hitting the windshield, and automatically runs the wipers at the right speed. we don’t have to take our hands off the wheel, or constantly adjust the speed of the wipers as road conditions change. A rain sensor or rain switch is a switching device activated by rainfall In this the sensor projects infrared light into the windshield at a 45-degree angle If the glass is dry, than most of this light is Reflected back into the sensor by the front of the windshield.If water droplets are on the glass, than it reflect the light in different direction…the wetter the glass, the less light makes it back into the sensor. The electronics and software in the sensor turn on the wipers when the amount of light reflected onto the sensor. software sets the speed of the wipers based on how fast the moisture builds up between wipes. It can operate the wipers at any speed. we don’t have to take our hands off the wheel, or constantly adjust the speed of the wipers as road conditions change.
ABSTRACT: This project is to design an electronic mailbox system with Password protection capabilities for accessing the mailbox. The mailbox owner will be notified via SMS alert whenever a new mail arrives. In addition, the owner can also view images of the new mails and time stamp information through a web browser. This mailbox system is targeted towards university dormitories and P.O boxes in which the owners of the mailbox are physically located far away from their mailboxes. The sensors which are triggered by incoming mails will allow the microcontroller to send a text only SMS notification to the corresponding mailbox owner. All of this information will be available to the mailbox owner via the SMS. When the mailbox owners arrive at their mailbox, they will enter their Password in order to authenticate access to the mailbox. If the correct owner is verified, the door will automatically open using a DC motor. Once the owner retrieves the mails, the reset routine will take place . In addition, when there is a package, the mail room attendant will press the “package button” which will send a “package arrived” notification to the recipient. The administrator will have the ability to add, modify and remove the mailbox owner accounts from the system.
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