Taks that may have been difficult or dangerous in the past can be assisted with the help of an Arduino, and one example of this is measuring the levels of water tanks. This is especially so when dealing with older rural tanks as some may have frames aged beyond their design.
Therefore we can turn to the Arduino world and inexpensive ultrasonic distance sensors to determine the volume of water left in a tank with the help of a project by Instructables member vonPongrac. The sensor can feed back the distance to the water level to the Arduino, and the sketch can use some basic maths to determine the volume of water in the tank based on the radius and height.
Furthermore once this system is in place, all manner of logging volume over time and other data can be collated for better usage analysis. For more information about such a project, visit the 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, 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.