qmk_firmware/keyboards/1upkeyboards/sweet16/keymaps/switchtester
..
keymap.c
readme.md
rules.mk
switches.c
switches.h

readme.md

Sweet16 as a switch tester

This keymap uses the Sweet16 as a switch tester. The functionality outputs the switch name of whatever key the user pressed.

the switches two-dimensional (4x4) array contains the switches attached to the macropad. The switches supported are defined as macros in the switches.h header file.