Acperience12 is 12 keys macropad.
Enter the bootloader: Press the reset button. The reset button is located on the top side of the PCB between SW9,10 and SW11,12. Insert a long thin stick (e.g. SIM eject tool or paper clip) into the hole on the top plate.
Make example for this macropad (after setting up your build environment):
make yynmt/acperience12:default
Flashing example for this macropad:
make yynmt/acperience12:default:flash
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.