waveshare2in13v2: Add constants, add missing init to example#25

Merged

maruel merged 3 commits intoperiph:mainfrom hansmi:ws2in13dev

Nov 26, 2021

+67-34

Commits on Nov 25, 2021

waveshare213v2: Avoid using strconv.Itoa
hansmi
committed

Commits on Nov 26, 2021