This should be the first and only needed release, so here it is:
3DS-TEST
3DS-TEST is a homebrew button/pad tester for 3DS and 2DS systems, styled after Nintendo's NES-TEST.
Made in Lua with LövePotion.
Features:
- 8-Bit goodness
- Button testing action
- Sound for each button
- 3DSX and CIA build (TID: 0004000000C64A00)
Controls:
- Any and all of them (Home button is not tested)
Issues:
- None that I am aware of
GBATemp Thread: https://gbatemp.net/threads/release-3ds-test-button-testing-homebrew.489100/