Set key mapping for YMDK Split keyboard with QMK

2 min readMay 16, 2022


It try Bootmapper that suggest on YMDK website but it wasn’t work then I looking for many alternative and found QMK that work 🎉

It’s only 4 simple step

1. Create key mapping (hex)

Enter and make sure the keyboard is select at ymdk/sp64

Config your Keymap by drag & drop

click [compile] button when you ready.

Download “Firmware” after finish compiling

2. Download QMK Toolsbox from github

Download and install from QMK website

Run QMK Toolbox (You may need to allow application to open at system preference)

Open firmware file and select “ATmega32A”

You can open qmk firmware code to confirm that “atmega32a” is the collect for your keyboard

3. Connect keyboard to your computer while hold [Left-Ctrl]

Unplug your board and plug it back in while holding [Left-CTRL], the bottom left key. It doesn’t matter if you’ve remapped it elsewhere it’ll always be that key

QTM Toolbox should say something like “BootloadHID device connected: ….”

Now you ready to flash you keyboard

Click [Flash] and don’t disconnect it while flashing

Done 🎉




I am a big believer that great UX comes from all team members, not one. #UX Evangelist at ODDS #Co-founder of UX Academy #Certified Sprint Master.