Congratulations! You have learned how to program Adafruit’s Circuit Playground Express. Here are some of the things we learned:

• Audio Output

cpx.play_file("sad.wav")

cpx.play_tone(262, 1.0)

• Capacitive Touches: cpx.touch_A1
• Temperature Sensor: cpx.temperature
• Light Sensor: cpx.light

Here is the Circuit Playground Cheatsheet.

Note: There are actually two ways to get audio output, one is via the small built-in speaker. The other is by using alligator clips to connect a headphone or powered speaker to the A0 pin!