I'm using an HC-SR04 ultrasonic sensor with Arduino to detect objects on a table and have it "plot" that detection on a grid.
I essentially want to "map" objects it detects on the table onto a grid in MATLAB. I am not using a servo motor to rotate the ultrasonic sensor. I am only detecting objects that are right in front of it in its line of sight.
I started off with an arbitrary grid:
I was thinking of representing each object that I find on the table as a block that's "shaded" in.
The general idea of how I want to do this is to have an ultrasonic sensor detect an object and then have it populate a "block" of the grid.