2 layers308.1 × 146 mm Migrane, the printed circuit board in 3D

Migrane

Board prepared to be used with qmk firmware.

Size: 308.1 × 146 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 304
Nets: 284
Pads: 1,519
Tracks, vias: 3,215, 475
Pours: 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 17 Sep 2025
Updated: 8 Nov 2025

Overview

Migrane is an open-source printed circuit board by AfonsoLopo, from the AfonsoLopo/migrane-kbd repository on GitHub. It is a 2-layer board of 308.1 × 146 mm with 304 parts on 284 nets, routed with 3,215 tracks and 475 vias.

It is built around the LDI1117-3.3H, 1N4148W and SK6812MINI-E, with the TYPE-C-31-M-12, MK-12C03-G015 and SMF5.0A among its other parts. Its parts include 130 diodes, 66 switches, 28 capacitors, 11 resistors and 10 ICs. It belongs with the STM32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.

Main components

README

README.md

MIGRANE

Specs

MCU : STM32F446RCT6 Number of Keys: 64 Kailh choc hotswap sockets Number of LEDS: 64 SK6812-mini e (1 per key) Displays: Adafruit 1.8" TFT Display Connection between halfs : Serial over USB-C to USB-C cable Wire Debugger: optional headers

Assembly

text

(TBD)

Firmware

Board prepared to be used with qmk firmware.

Parts

304

Qty	Value	Footprint	References
64	1N4148W	Diode_SMD:D_SOD-123	D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +48
62	1N4148W	PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_Choc_V1_Plated_1.00u	SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +46
37	4960	easyeda2kicad:LED-SMD_L3.2-W2.8-LS5.9_SK6812MINI-E	LED10, LED11, LED12, LED33, LED34, LED35, LED36, LED37, LED38, LED39, LED40, LED41, LED42, LED43, LED44, LED45 +21
27	SK6812mini-e	easyeda2kicad:LED-SMD_L3.2-W2.8-LS5.9_SK6812MINI-E	LED1, LED2, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23, LED24, LED25, LED26 +11
16	100nF	Capacitor_SMD:C_0805_2012Metric	C3, C4, C5, C6, C7, C8, C12, C14, C17, C19, C20, C21, C22, C23, C24, C28
6	10uF	Capacitor_SMD:C_1206_3216Metric	C1, C2, C9, C15, C16, C18
4			, , ,
4	15pF	Capacitor_SMD:C_0402_1005Metric	C10, C11, C25, C26
4	5.1kΩ	Resistor_SMD:R_0603_1608Metric	R1, R2, R8, R9
4	TYPE-C-31-M-12	easyeda2kicad:USB-C_SMD-TYPE-C-31-M-12_1	USBC1, USBC2, USBC3, USBC4
3	10kΩ	Resistor_SMD:R_0805_2012Metric	R3, R5, R12
2		clipboard:bf87ff4d-921f-4e46-abc4-457b704bfae1	,
2	1N4148W	PCM_Switch_Keyboard_Hotswap_Kailh:SW_Hotswap_Kailh_Choc_V1_Plated_1.50u	SW32, SW62
2	22 Ω	Resistor_SMD:R_0402_1005Metric	R13, R14
2	22Ω	Resistor_SMD:R_0402_1005Metric	R6, R7
2	358	easyeda2kicad:MODULE_358	U3, U8
2	4.7uF	Capacitor_SMD:C_0603_1608Metric	C13, C27
2	8MHz	Crystal:Crystal_SMD_Abracon_ABM3B-4Pin_5.0x3.2mm	Y1, Y2
2	Conn_ST_STDC14	Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Horizontal	J1, J2
2	GT-TC020A-H035-L05	easyeda2kicad:SW-SMD_GT-TC020B-H035-L05	U5, U10
2	LDI1117	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U1, U6
2	LOGO	LOGO	G*, G*
2	MK-12C03-G015	easyeda2kicad:SW-SMD_MK-12C03-G015	SW65, SW66
2	SMF5.0A	PCM_JLCPCB:D_SOD-123FL	D65, D68
2	STM32F446RCTx	Package_QFP:LQFP-64_10x10mm_P0.5mm	U4, U9
2	USBLC6-2SC6_C5261088	easyeda2kicad:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR	U2, U7
1	+5 V	TestPoint:TestPoint_Pad_D1.5mm	MASTER VBUS

The 262 most common of 304 parts.

Questions

How big is the Migrane PCB?

It measures 308.1 × 146 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Migrane use?

304 parts, built around the LDI1117-3.3H, 1N4148W, SK6812MINI-E and TYPE-C-31-M-12. 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 Migrane KiCad files?

From the AfonsoLopo/migrane-kbd repository on GitHub, at the commit this page was made from: the board is pcbs/rev3.0/migrane.kicad_pcb and its schematic pcbs/rev3.0/MasterLed.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Migrane design in my own project?

Its repository states no licence, so its author keeps all rights: ask AfonsoLopo before reusing the design.

Category and platform

STM32 NXP (LPC, Kinetis, i.MX RT)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/afonsolopo-migrane-kbd" title="Migrane in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/afonsolopo-migrane-kbd.jpg" alt="Migrane" width="1200" height="900">

A picture that opens the board, for a README

[![Migrane](https://pcbkit.io/embed/boards/afonsolopo-migrane-kbd.jpg?size=s)](https://pcbkit.io/boards/afonsolopo-migrane-kbd)

Source

Repository: AfonsoLopo/migrane-kbd
Board file: pcbs/rev3.0/migrane.kicad_pcb
Commit: bbeb667
Licence: Not stated

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