Basically we are trying to make a Community project for someone in our city. (Chantilly). We are building a "robotics walker" for a handicapped baby. One of the safety features is that the walker doesnot bump into walls, or doesnot fall off the stairs. We were thinking of solving this problem by using some distance/range finders, and constantly checking the distance between the robo-walker and the wall, and the distance between walker and the ground. So if the distance between walker and wall is less than say 4 feet, the walker should do some safety feature.
Thats the reason we needed range finders. Also I checked some ultrasonic rangefinders (
http://www.hobbyengineering.com/SectionS.html) and I saw that this specific one works on 40 KHz frequency. So if we want two of them, mounted and working together, that might produce an interference. How would we avoid this. We also dont know if this specific one gives output in analog or digital values.
Thanks,
Tem 612.