LEGO has helpfully given us an app that can operate every aspect of your EV3 robots. It can control motors, both large and medium. It can give you a joystick or slider bars to control motors singly or in combination. It can also report the status of your sensors. This is exceptionally useful for testing a new design without writing any software.
Downloading and Running the Robot Commander App
Figure B-1 shows a screenshot from the LEGO Robot Commander app download page. As shown at the bottom, you can download ...
