Now that you know how to update and upload code to your board, you can move on to learning how to write code and more. For everything you could ever want to know about Circuit Playground Express, be sure to check out the comprehensive guide here.
Circuit Playground Express can be programmed using a variety of different methods, including:
Adafruit Learning System has a ton of great projects built using Circuit Playground Express!
Check out the full list to start exploring.