2 layers96.6 × 59.7 mm
Preheat controller
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Controller for the Youyue 946c preheating station.
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QMKCM2
xeno3dev/QMKCM21QMKCM2 is a QMK/ESP Powered Macropad inspired by the Work Louder Creator Micro 2
- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 44
- Pads
- 222
- Tracks, vias
- 430, 61
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Aug 2026
- Updated
- 16 Aug 2026
Overview
QMKCM2 is an open-source printed circuit board by xeno3dev, from the xeno3dev/QMKCM2 repository on GitHub. It is a 4-layer board of 100 × 100 mm with 52 parts on 44 nets, routed with 430 tracks and 61 vias.
It is built around the SN74LVC1G126DBVR-TP, 1N4148W and WS2812B, with the PEC11R-4215F-S0024 among its other parts. Its parts include 22 diodes, 15 switches, 8 capacitors, 1 IC and 1 connector. It belongs with the keyboards and input boards of this library.
Main components
4
SN74LVC1G126DBVR-TP
SOT-23-5-40℃~+125℃ 1 1 1.65V~5.5V 10uA 32mA 32mA 74LVC 9ns@5V,50pF Power-off isolation、Output enable Tri-State Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, Transceivers
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
PEC11R-4215F-S0024
插件-30℃~+70℃ 10mA 24/24 5V Incremental Straight Two-phase output 插件 Rotary Encoders ROHSBournsRotary Encoders
README
README.mdQMKCM2
QMKCM2 is a QMK/ESP Powered Macropad inspired by the Work Louder Creator Micro 2
Repository layout
keyboard/Keypad KiCad Project (QMKCM2.kicad_pro), including the switch matrix, ATtiny1616, RGB LEDs, and rotary encoder.mainboard/Mainboard KiCad Project (QMKCM2_Mainboard.kicad_pro), including the ESP32, USB-C, power, and support circuitry.
Status
Early hardware design work
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D20 |
| 14 | SW_SPST | PCM_Switch_Keyboard_Kailh:SW_Kailh_Choc_V1_1.00u | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW17 |
| 8 | 0.1uF | Finished:0603 | C1, C2, C3, C4, C5, C6, C21, C22 |
| 8 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D14, D15, D16, D17, D21, D22, D23, D24 |
| 4 | s | MountingHole:MountingHole_3.2mm_M3 | s, s, s, s |
| 1 | 2765 | 2765:SW_2765 | S1 |
| 1 | 526102672 | 2765:CON_526102672_MOL | J2 |
| 1 | PEC11R-4215F-S0024 | 2765:XDCR_PEC11R-4215F-S0024 | MT1 |
| 1 | SN74LVC1G126DBVR | 2765:SOT95P280X145-5N | U1 |
Questions
How big is the QMKCM2 PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the QMKCM2 use?
52 parts, built around the SN74LVC1G126DBVR-TP, 1N4148W, WS2812B and PEC11R-4215F-S0024. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the QMKCM2 KiCad files?
From the xeno3dev/QMKCM2 repository on GitHub, at the commit this page was made from: the board is keyboard/QMKCM2.kicad_pcb and its schematic keyboard/QMKCM2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the QMKCM2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask xeno3dev before reusing the design.
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