Software › Buttons
Buttons
demo Open · freely redistributable
An original CC0 bare-metal Circuit Playground Express program: it reads buttons A (PA28) and B (PA14) from the PORT IN register — active HIGH on the CPX — showing a dim idle glow, lighting the right half of the ring green while A is held and the left half blue while B is held, and beeping on the DAC on each press. Exercises the real button GPIO path.
Format: SAMD21 flash image (bare-metal, compiled C) · By: emulators.org · Licence: Public domain (CC0)