3 http://deskthority.net/workshop-f7/how-to-build-your-very-own-keyboard-firmware-t7177-270.html
6 == Columns beyond 16(uint16_t) cannot be read ==
7 * https://github.com/tmk/tmk_keyboard/wiki/FAQ#cant-read-comlumn-of-matrix-beyond-16
8 * http://deskthority.net/workshop-f7/how-to-build-your-very-own-keyboard-firmware-t7177-270.html#p247051
9 * http://deskthority.net/workshop-f7/rebuilding-and-redesigning-a-classic-thinkpad-keyboard-t6181-60.html#p146279