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Out Looking

DDMilli’s layout is based on GH60. The top left corner has a USB Type C connector, that can be 
connected to a USB 1.1/2.0/3.0/3.1 port. On the left of the USB connecter.

ATTENTION: do not connect DDMilli to USB Type C PD charger. Voltage over 5.0V might 
cause damage on PCB hardware!

There is a red LED as charging indicator. It will lit up while it is charging, and turns off when 
battery is full.

In the middle left, there is a power switch position. It is using 6pin footprint, and can be soldered 
with self-lock switch, or standard SMT slide switch. It will turn on/off the battery connection. If 
you don’t want to use a switch, please solder a short wire between the middle hole of two rows. 
Then the battery will permanently connected.

The battery connector is right above the power switch, provided as a PH2.0 connector.

Please notice that the antenna is on the left side of PCB. The area close to the antenna should 
not be completely covered with metal or carbon fibre material. Otherwise the signal quality will 
be affected.

Because of more processors are used on board, DDMilli may not fit in some cases that has 
critical PCB thickness requirement. 

Reserved Keys

The first key on top row(‘Esc’ key in default definition) is Bluetooth Erase Band Key. Turn on 
keyboard while holding this key can reset paired device list and re-enable Bluetooth advertising.

The second key on top row(‘q’ key in default definitions) is Bluetooth Add Band Key. Turn on 
keyboard while holding this key can temporarily enable Bluetooth advertising for adding a new 
device to paired list.

The forth key on top row(‘e’ key in default definitions) is Test Mode Key. Turn on keyboard while 
holding this key can switch keyboard into test mode. This mode is used to detect any shortcut 
happened on switches, and all RGB LED are working correctly.

The first key on second row(‘Tab’ key in default definitions) is Wakeup Key. If there is no 
connection in Bluetooth mode for 3 minutes, the keyboard will switch to sleep mode to save 
power. Then press this key can wakeup the keyboard again.

   

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Summary of Contents for DD Milli

Page 1: ...DD Milli User Guide G18 alpha DD Dev Group 2018 06...

Page 2: ...so connected to a build in charging circuit Fully NKRO support Max report keys are limited by USB protocol of 6 Standard Cherry MX switch footprint fit most of the switches in the market Individual su...

Page 3: ...be completely covered with metal or carbon fibre material Otherwise the signal quality will be affected Because of more processors are used on board DDMilli may not fit in some cases that has critica...

Page 4: ...will automatically switch off Please connect the USB cable to charge the battery Don t forget to turn on the power switch while charging otherwise the battery will not be connected to power The keyboa...

Page 5: ...4...

Page 6: ...tch 3 Turn on Bluetooth searching on your host device smartphone Laptop PC 4 Wait for seconds and a device named as DD Milli Keyboard will show up in the list Select it to connect 5 If the device is n...

Page 7: ...n file You could change key definitions by editing this file in text editor like Notepad UTF 8 encoding is required ddconf exe a Windows command line tool for downloading dd_configuration txt content...

Page 8: ...ol to indicate the color Please check the actual value with RGB color picker The green box in the screenshot is layer declaration They should start with tag LAYER and followed by a number from 0 to 7...

Page 9: ...dd_configuration txt file is saved in the same folder with ddconf application 3 Following the instructions shown on your screen You may need another keyboard to help you press any key to continue or u...

Page 10: ...r FN_X reset to default layer Alt ALT Control CTRL Win Command WIN Shift key SHIFT Tab key TAB Backspace BS Delete DEL Escape key ESC Space SPACE white space bar Enter ENTER Up UP arrow key Down DOWN...

Page 11: ...perator n replace with Numpad number n replace with 0 9 Numpad Enter n Numpad dot n Numpad operator n replace with BLE Device Selection BT_ replace with 1 8 Swap CTRL WIN keys SWAP_CW Erase Bluetooth...

Page 12: ...Mouse scroll right MOSSR Mouse move up MOSMU Mouse move down MOSMD Mouse move left MOSML Mouse move right MOSMR Volume Up MMAVUP Volume Down MMAVDN Mute MMAMUT 11...

Page 13: ...led this equals to AC RIGHT With the micro key definitions you could define symbol keys individually Which means you could map number key 1 with symbol key to different key positions Firmware will hel...

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