Do you know you can detect how many degrees has the motor rotated? All you have to do is the Rotation sensor of LEGO Mindstorms EV3 & NXT. It is a sensor embedded in the motors themselves.
This program is for Frog Bot - LEGO Mindstorms Robot that could jump. The program makes the robot move like a toy car with a wind up mechanism. It starts by waiting for three seconds, when you should turn the legs of the frog by hand backward. Then it makes a sound, and the robot starts jumping forward, as much as you have wound it up. The program uses motor rotation sensor to know how much it was wound up.
This project is for Lintu - a LEGO Mindstorms EV3 Kiwi bird robot. The project includes three programs, the first is the main program for the robot. It goes forward until it sees a hand next to its beak, then closes it and returns to the starting point, its nest. The second program is an upgrade: the robot not only closes its beak, but also check if there is "food" in it. Both the checking for food and the returning to starting position are made using the motor rotation sensor.
The last program is a fun one. It makes the robot bite!
These are a series of programs that measure the length and volume of a room. They are meant to work with the robot Voli.
This program is for Cardiidae - a LEGO Mindstorms EV3 Clam robot. It provides a solution for the final tasks in Lesson 1, level D1. It makes the clam robot detect when it is being opened and then to close itself.