4 layers100 × 100 mm 4C, the printed circuit board in 3D

4C

4 Channel motor controller board for high voltage high amperage solutions. Integrated PID.

Size: 100 × 100 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 204
Nets: 150
Pads: 652
Tracks, vias: 1,594, 395
Pours: 36
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 20 Mar 2026
Updated: 7 Jul 2026

Overview

4C is an open-source printed circuit board by ayaamghi, from the ayaamghi/4C repository on GitHub. It is a 4-layer board of 100 × 100 mm with 204 parts on 150 nets, routed with 1,594 tracks and 395 vias.

It is built around the DRV8701ERGER, AMS1117-3.3 and CRCW06030000Z0EA, with the C1608X7R1H104K, CSD18540Q5B and CRCW060310K0JNEAC among its other parts. Its parts include 57 capacitors, 38 resistors, 16 transistors, 12 connectors and 6 ICs. It belongs with the robots and motor control boards and the STM32 boards of this library.

Main components

README

README.md

4C

Four-channel brushed DC motor controller board built around an STM32G4, DRV8701 gate drivers, and discrete MOSFET bridges.

Layout

hardware/kicad/4C.kicad_pro - open this in KiCad
hardware/kicad/libs/ - project-local imported parts and 3D models
firmware/cubemx/ - STM32CubeMX config
docs/datasheets/ - datasheets and layout notes

Hardware is still in progress; check the schematic, BOM, and fab outputs before ordering.

Parts

204

Qty	Value	Footprint	References
48	AVDD	TestPoint:TestPoint_Pad_D1.5mm	TP10, TP11, TP12, TP13, TP14, TP17, TP18, TP19, TP20, TP21, TP22, TP23, TP24, TP25, TP26, TP27 +32
18	CRCW06030000Z0EA	Easyeda:R0402	R10, R11, R18, R19, R21, R22, R29, R30, R32, R33, R40, R41, R43, R44, R45, R46 +2
16	C1608X7R1H104K	Easyeda:C0402	C2, C6, C17, C21, C32, C36, C47, C51, C62, C64, C66, C67, C68, C69, C72, C73
16	CSD18540Q5B	Easyeda:VSON-CLIP-8_L5.0-W6.0-P1.27-BL	Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16
16	GRM188R70J105KA01D	Easyeda:C0603	C3, C4, C7, C14, C18, C19, C22, C29, C33, C34, C37, C44, C48, C49, C52, C59
16	Net-Tie	NetTie:NetTie-2_SMD_Pad0.5mm	NT1, NT2, NT3, NT4, NT5, NT6, NT7, NT8, NT9, NT10, NT11, NT12, NT13, NT14, NT15, NT16
12	CRCW060310K0JNEA	Easyeda:R0402	R1, R2, R4, R12, R13, R15, R23, R24, R26, R34, R35, R37
8	ECA-1HM471	Easyeda:CAP-TH_BD10.0-P5.00-D0.6-FD	C8, C15, C23, C30, C38, C45, C53, C60
8	VM	TestPoint:TestPoint_Pad_D1.5mm	TP1, TP2, TP15, TP16, TP29, TP30, TP43, TP44
6	CL05A105KA5NQNC	Easyeda:C0402	C5, C20, C35, C50, C61, C63
4	CRA2512-FZ-R010ELF	Easyeda:R2818	R9, R20, R31, R42
4	CRCW06037K50JNEA	Easyeda:R0402	R3, R14, R25, R36
4	Conn_01x02	Connector_JST:JST_VH_B2P-VH_1x02_P3.96mm_Vertical	J10, J11, J12, J13
4	Conn_01x04	Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical	J18, J19, J20, J21
4	DRV8701ERGER	Easyeda:VQFN-24_L4.0-W4.0-P0.50-BL-EP2.5	U1, U2, U3, U4
4	GRM155R71C102KA01D	Easyeda:C0402	C9, C24, C39, C54
4	GRM32ER71H106KA12L	Easyeda:C0805	C1, C16, C31, C46
2	TestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP57, TP58
1	10uF	Easyeda:C0805	C70
1	22uF	Easyeda:C0805	C71
1	AMS1117-3.3	Easyeda:SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR	U6
1	Conn_01x02	Connector_Wire:SolderWirePad_2x01_SMD_10x12mm	J2
1	Conn_01x04	Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical	J1
1	Conn_01x04	Connector_JST:JST_GH_SM04B-GHS-TB_1x04-1MP_P1.25mm_Horizontal	J22
1	GRM32ER71H106KA12L	Easyeda:C0402	C65
1	GZ1608D601TF	Easyeda:L0603	L1
1	STM32G474RETx	Package_QFP:LQFP-64_10x10mm_P0.5mm	U5
1	USB_C_Receptacle_USB2.0_16P	Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12	J25

Questions

How big is the 4C PCB?

It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.

What parts does the 4C use?

204 parts, built around the DRV8701ERGER, AMS1117-3.3, CRCW06030000Z0EA and C1608X7R1H104K. 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 4C KiCad files?

From the ayaamghi/4C repository on GitHub, at the commit this page was made from: the board is hardware/kicad/4C.kicad_pcb and its schematic hardware/kicad/4C.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the 4C design in my own project?

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

Category and platform

Robots and motor control STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/ayaamghi-4c" title="4C 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/ayaamghi-4c.jpg" alt="4C" width="1200" height="900">

A picture that opens the board, for a README

[![4C](https://pcbkit.io/embed/boards/ayaamghi-4c.jpg?size=s)](https://pcbkit.io/boards/ayaamghi-4c)

Source

Repository: ayaamghi/4C
Board file: hardware/kicad/4C.kicad_pcb
Commit: 0053baf
Licence: Not stated

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