What is MakeCode?

MakeCode is a web based code editor for physical computing made by Microsoft.

What does that mean for you? It means you can program your Circuit Playground Express to do almost anything you can dream up right from a website! You can code with blocks similar to the language Scratch, or you can do more advanced coding with Javascript. We'll be sticking to the block-based programming for this project.

More on MakeCode for Adafruit boards here.

Above is a simple example of what can be done in MakeCode. In the example, every half second (500ms) the board's NeoPixel leds change from red to blue then back to red etc. forever.