Creating a touch handler to play sounds

In this recipe, we will create the first version of our touch handler. This first version will play a specific audio file each time a touch event is detected. We can then use this handler in later recipes, in order to map each touchpad to a specific audio file. We will also expand the functionality of this handler in future recipes to add light, as well as sound, to the touch event. Event handlers are a common part of many software systems. This recipe will help you see how you can use this common approach with your MicroPython projects.

Getting ready

You will need access to the REPL on Circuit Playground Express to run the code presented in this recipe.

...