Summary
This chapter explored the various NeoPixel products and the MAX7219-based 7-segment 8-digit display. We programmed them with the NeoPixel product and a custom library, respectively. As an exercise, try combining these LED-based displays with the built-in or external push buttons so that you have interactivity in your projects.
The code bundle for this chapter contains a few additional programs. As an exercise, go through those programs and understand their logic.
The next chapter will explore programming the Micro:bit to produce music and speech. We will learn how to connect an external speaker to the Micro:bit. We will also learn how to use a built-in microphone and speaker in the Micro:bit V2.