2 layers72.2 × 33.9 mm BuckUnit, the printed circuit board in 3D

BuckUnit

 . │ ├──  l1 │ ├──  3dmodels │ │ ├──  .DSStore │ │ ├──  0603Inductor.step │ │ ├──  1040Inductor.step │ │ ├──  ALS-PT19.step │ │ ├──  C0603.step │ │ ├──  CAPPRD750W80D1600H2500.stp │ │ ├──  CD74HC4067M.step │ │…

Open in PCBKit

Size: 72.2 × 33.9 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 25
Nets: 19
Pads: 81
Tracks, vias: 31, 86
Pours: 15
Routed: Yes
KiCad: KiCad 8.0 (file 20240108)
Created: 31 Jul 2024
Updated: 11 Apr 2026

Overview

BuckUnit is an open-source printed circuit board by senrobo, from the senrobo/open repository on GitHub, published under the MIT licence. It is a 2-layer board of 72.2 × 33.9 mm with 25 parts on 19 nets, routed with 31 tracks and 86 vias.

Its parts include 11 connectors, 6 resistors, 2 capacitors and 2 ICs.

README

README.md

open

Project Structure

 . │ ├──  l1 │ ├──  3dmodels │ │ ├──  .DS_Store │ │ ├──  0603Inductor.step │ │ ├──  1040Inductor.step │ │ ├──  ALS-PT19.step │ │ ├──  C0603.step │ │ ├──  CAPPRD750W80D1600H2500.stp │ │ ├──  CD74HC4067M.step │ │ ├──  Crystal.step │ │ ├──  'crystal 8MHz.stp' │ │ ├──  DFN08L_5X6A.step │ │ ├──  IRLML6344TRPBF.stp │ │ ├──  led0603.step │ │ ├──  led2835.stp │ │ ├──  LM2587S.stp │ │ ├──  NCP81074AMNTBG.stp │ │ ├──  PESD3V3Y1BSFYL.stp │ │ ├──  PowSO30-ST.step │ │ ├──  R0603.step │ │ ├──  'Seeed Studio XIAO-ESP32-C3.step' │ │ ├──  SS5X.stp │ │ ├──  SS12D00G3.stp │ │ ├──  STP75NF75.step │ │ ├──  SW_PUSH_SPST.step │ │ ├──  teensy4.step │ │ ├──  TO-220-3_Vertical.step │ │ ├──  TO-252.step │ │ ├──  XT30UPB-F.step │ │ └──  XT60UPB-M.step │ ├──  activation.kicad_sch │ ├──  boost-switch.kicad_sch │ ├──  boost.kicad_sch │ ├──  cao.pcb3d │ ├──  connections.kicad_sch │ ├──  fp-info-cache │ ├──  l1.kicad_pcb │ ├──  l1.kicad_prl │ ├──  l1.kicad_pro │ ├──  l1.kicad_sch │ ├──  l1.step │ ├──  led.kicad_sch │ ├──  lightring.kicad_sch │ ├──  miscellaneous.kicad_sch │ ├──  motordriver.kicad_sch │ ├──  mux.kicad_sch │ ├──  Power.kicad_sch │ ├──  stm32.kicad_sch │ ├──  sym-lib-table │ └──  ~l1.kicad_sch.lck ├──  processingUnit │ ├──  3dmodels │ │ ├──  'Adafruit BNO085.step' │ │ ├──  OPENMVRT1062.STEP │ │ ├──  R0603.step │ │ ├──  'Seeed Studio XIAO-ESP32-C3.step' │ │ ├──  SS12D00G3.stp │ │ └──  teensy4.step │ ├──  l3.pretty │ │ ├──  bno085.kicad_mod │ │ ├──  cap0603.kicad_mod │ │ ├──  led0603.kicad_mod │ │ ├──  OpenMV_RT.kicad_mod │ │ ├──  res0603.kicad_mod │ │ ├──  'SEN Logo Mini.kicad_mod' │ │ ├──  SS12D00G3.kicad_mod │ │ ├──  'Teensy 4.0.kicad_mod' │ │ └──  xiao-esp32c3.kicad_mod │ ├──  2024l3.step │ ├──  fp-info-cache │ ├──  fp-lib-table │ ├──  l3.kicad_pcb │ ├──  l3.kicad_prl │ ├──  l3.kicad_pro │ └──  l3.kicad_sch ├──  .gitignore ├──  LICENSE └──  README.md

Parts

Qty	Value	Footprint	References
4	MountingHole	MountingHole:MountingHole_3.2mm_M3_Pad	H1, H2, H3, H4
3	1K	Library:res0603	R1, R2, R3
2	10u	Library:cap0603	C1, C2
2	L1	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J7, J9
2	OKL-T6-W12P-C	Library:MURATA_OKL-T-6-W12	U1, U2
2	SPARE	Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	J8, J10
1	10	Library:res0603	R6
1	12V	Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical	J1
1	180	Library:res0603	R5
1	330	Library:res0603	R4
1	Conn_01x05	Connector_JST:JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical	J11
1	Drib A	Library:xt30-f	J5
1	Drib B	Library:xt30-f	J6
1	GND	Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical	J2
1	Motor	Library:xt30-f	J4
1	VBAT	Library:xt60-f	J3

Questions

How big is the BuckUnit PCB?

It measures 72.2 × 33.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the BuckUnit use?

25 parts. 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 BuckUnit KiCad files?

From the senrobo/open repository on GitHub, at the commit this page was made from: the board is supplyUnit/buckUnit/buckUnit.kicad_pcb and its schematic breakout/Cam Adapter/Cam Adapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the BuckUnit design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/senrobo-open-buckunit" title="BuckUnit 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/senrobo-open-buckunit.jpg" alt="BuckUnit" width="1200" height="900">

A picture that opens the board, for a README

[![BuckUnit](https://pcbkit.io/embed/boards/senrobo-open-buckunit.jpg?size=s)](https://pcbkit.io/boards/senrobo-open-buckunit)

Source

Repository: senrobo/open
Board file: supplyUnit/buckUnit/buckUnit.kicad_pcb
Commit: 219b726
Licence: MIT

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