Now and again we see a relatively simple Arduino-based project which is easy to make and very useful - such as this parking guide system by Instructables member mindtesterdev. This project is a solution to the problem of driving into a garage that may not have much excess space and thus the driver needs to take special care.
By mounting an ultrasonic distance sensor at the same horizontal level as the vehicles' bumper level - a connected Arduino can determine how far away you are from an accident. The distance to go is indicated with an RGB LED that changes colour or blinks in a pattern programmed and understood by the end user. Check out the following video for a quick demonstration of entering the garage:
It's great to see how neat the final installation has become, the project would appear to unknowing observers as a commercial product. To make your own version, head over to the project's Instructable page. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.
If you're looking to learn about Arduino development platform and how it interacts with external devices such as ultrasonic distance sensors - you can't go past "Arduino Workshop - A Hands-On Introduction with 65 Projects” by John Boxall.
Arduino Workshop takes the reader from having zero knowledge about the Arduino platform, electronics and programming and leaves them with the know-how and instructions on everything from blinking an LED, to robotics, wireless data, cellular communications, motor control, sensors, Internet connected systems and more. For more information including a sample chapter and table of contents, visit the book page.