keychron_qmk_firmware/keyboards/controllerworks/mini42

mini42

A pre-built, low profile, split mechanical keyboard based on the RP2040 processor

• Keyboard Maintainer: Kevin Gee
• Hardware Supported: mini42 split ergonomic keyboard
• Hardware Availability: https://controller.works/products/mini42-low-profile-ergonomic-keyboard Hardware is available as pre-built units only.

Make example for this keyboard (after setting up your build environment):

    make controllerworks/mini42:default

Flashing example for this keyboard:

    make controllerworks/mini42:default:flash

See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.

Features

• Highly integrated design with microcontroller, USB and TRRS connectors, and OLED all integrated on the main board with no secondary modules
• RP2040 processor by Raspberry Pi Foundation running at 130 MHz with 16MB flash memory
• CNC milled aluminum case with only 8mm thickness
• "PCB art" shine through back plate with gold surface finish
• 128x32 OLED on each keyboard half
• 42 per-key RGB LEDs and 12 backlight RGB LEDS are individually addressable
• ESD and over-current protection on USB and TRRS connectors
• Reset and boot tactile switches
• USB C host connection
• Hot swap connectors for Kailh Chocolate PG1350 switches
• Chocolate key spacing (18mm horizontal x 17mm vertical)

Bootloader

Enter the bootloader in 3 ways:

• Bootmagic reset: Hold down the upper left key on the left hand keyboard half or the upper right key on the right hand keyboard half while plugging in USB
• Physical reset button: Press the RST button twice, rapidly
• Keycode in layout: Press the key mapped to QK_BOOT if it is available

Pin Assignment

Name	Pin	Left Row	Left Column	Right Row	**Right Column
LED	GP0
DATA	GP1
DATA2*	GP28
KEY0	GP2	0	0	4	0
KEY1	GP3	0	1	4	1
KEY2	GP4	0	2	4	2
KEY3	GP5	0	3	4	3
KEY4	GP6	0	4	4	4
KEY5	GP7	0	5	4	5
KEY6	GP8	1	0	5	0
KEY7	GP9	1	1	5	1
KEY8	GP10	1	2	5	2
KEY9	GP11	1	3	5	3
KEY10	GP12	1	4	5	4
KEY11	GP13	1	5	5	5
KEY12	GP14	2	0	6	0
KEY13	GP15	2	1	6	1
KEY14	GP16	2	2	6	2
KEY15	GP17	2	3	6	3
KEY16	GP18	2	4	6	4
KEY17	GP19	2	5	6	5
KEY18	GP20	3	0	7	0
KEY19	GP21	3	1	7	1
KEY20	GP22	3	2	7	2
SDA	GP24
SCL	GP25

*DATA2 on production units, not connected on prototype units

** Right Column numbers run right (pinky position) to left (thumb position)