Keyestudio ESP32 Manual page 193

ESP32 Starter Kit
5. Test Result
After uploading code, connecting the wiring and powering on, the LED will light up in different colors, as show below:
6. Knowledge Expansion
In this expansion project, let's make a mini light show!
Nest four "repeat" blocks and add a "variable +" in them, then clear the corresponding variables to 0 at the end of each
loop.
9.2. Scratch Project 189