Each press of the screen/button cycles through red, green, blue, yellow, magenta, cyan, white, and black. The selected color name is drawn in the center and also printed to the serial monitor at 115200 baud.

Build

pio run

Upload

Connect the AtomS3R over USB, then run:

pio run --target upload

If normal upload mode is not detected, hold the reset button for about two seconds until the internal green LED lights, release it, and retry the upload.