In the previous lessons, you have learned to use the Hummingbird lights and motors, as well as the micro:bit display. These are known as the outputs. Python sends commands to these components to make something happen. There is one more output, the buzzer on the Hummingbird board. In this lesson, you will learn to play simple songs using the buzzer. You will also complete a challenge with all of the Hummingbird components you have used so far. This will help you to review all of the Hummingbird outputs so that you are ready to move on to inputs (sensors) in the next lesson.
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