A TKL PCB attempting a87 and a88 compatibility with different switch and layout-options.
Make example for this keyboard (after setting up your build environment):
make 4pplet/waffling80/rev_a:default
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.
How to enter bootloader (DFU):
Alternative option if the firmware is already pre-flashed: