Re: Ultrasonic sensor capabilities
In addition to timdavid's comments (total agreement) I recommend doing some experiments, with the sensor at short distances, and varying the angle between the US beam and the surface it's reflecting from. My experience indicates that at close ranges (under 20 cm), the sensor is very picky about alignment, and what the surface is made from. Factoring these effects into the algorithm for the pendulum robot, that makes for a very dynamic solution.
Originally Posted by cbix
FIRST Tech Challenge Judge: 2010, Referee: 2017
FIRST LEGO League Mentor, Instructor, and/or Referee/Head Referee since 2011
FIRST Robotics Competition judge (Chairman's Award): 2014
Dean says I'm an "Oompa Loompa of Science"