Learn Robotics Programming

Status indicators – displays, lights, and sounds

Another helpful output device is a display—a simple light (or LED) to indicate the status of some part of the robot, or an array of LEDs, a display that can show some text, or a full graphical display like those found on a mobile phone. We will be connecting an LED strip to the robot as a display in Chapter 9, Programming RGB Strips in Python.

Speakers and beepers can be used for a robot to communicate with humans by making sounds. The sound output from these can range from simple noises up to speech or playing music.

Many robots do not have any mounted status indicators and rely on a connected phone or laptop to display their status for them.