Summary

This concludes our exploration of sound on the Raspberry Pi. In this chapter, we have looked at a number of different technologies for creating sounds on the Raspberry Pi.

First, we built some hardware that interacted with the Raspberry Pi's GPIO pins. In conjunction with this, we wrote a small Python application that took the GPIO input and played an MP3.

We explored ALSA through the C language, and looked at implementing an example from the ALSA website that generated an audio tone.

Finally, we installed and experimented with the Sonic Pi application. Here we saw how simple scripts could be put together to generate music and sounds in a graphical user interface.

Now we will move on to learning more about how we can serve web content via our Raspberry Pi 2. In order to achieve this, we will build a web service using the Python programming language.

We will also examine other options for hosting a web server on our Raspberry Pi.