2 layers221 × 74.4 mm Relay ctrl lab, the printed circuit board in 3D

Relay ctrl lab

Size: 221 × 74.4 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 59
Nets: 52
Pads: 249
Tracks, vias: 443, 24
Pours: 2
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 22 Aug 2019
Updated: 15 Jul 2025

Overview

Relay ctrl lab is an open-source printed circuit board by ograsdijk, from the ograsdijk/CeNTREX-pcb repository on GitHub. It is a 2-layer board of 221 × 74.4 mm with 59 parts on 52 nets, routed with 443 tracks and 24 vias.

Its parts include 29 resistors, 25 connectors and 1 IC. It belongs with the home automation and IoT boards of this library.

README

README.md

CeNTREX-pcb

Parts

Qty	Value	Footprint	References
29	R	Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +13
5	Conn_01x01	Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical	J18, J19, J20, J23, J24
4	MountingHole_Pad	MountingHole:MountingHole_3.2mm_M3_DIN965_Pad	H1, H2, H3, H4
1	Conn_01x04	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J21
1	Conn_02x16_Odd_Even	Connector_PinHeader_2.54mm:PinHeader_2x16_P2.54mm_Vertical	J25
1	DEV-14058	DEV-14058:SPARKFUN_DEV-14058	U1
1	HORNET1 CG1	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J16
1	HORNET1 CG2	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J15
1	HORNET1 IG	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J17
1	HORNET2 CG1	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J13
1	HORNET2 CG2	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J12
1	HORNET2 IG	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J14
1	HORNET3 CG1	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J10
1	HORNET3 CG2	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J9
1	HORNET3 IG	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J11
1	HORNET4 CG1	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J7
1	HORNET4 CG2	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J6
1	HORNET4 IG	SJ-3523-SMT-TR:CUI_SJ-3523-SMT-TR	J8
1	RJ45_Shielded	Connector_RJ:RJ45_Amphenol_RJHSE5380	J1
1	Screw_Terminal_01x02	TerminalBlock_RND:TerminalBlock_RND_205-00001_1x02_P5.00mm_Horizontal	J22
1	TURBO1	SJ-43514-SMT:CUI_SJ-43514-SMT	J5
1	TURBO2	SJ-43514-SMT:CUI_SJ-43514-SMT	J4
1	TURBO3	SJ-43514-SMT:CUI_SJ-43514-SMT	J3
1	TURBO4	SJ-43514-SMT:CUI_SJ-43514-SMT	J2

Questions

How big is the Relay ctrl lab PCB?

It measures 221 × 74.4 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Relay ctrl lab use?

59 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 Relay ctrl lab KiCad files?

From the ograsdijk/CeNTREX-pcb repository on GitHub, at the commit this page was made from: the board is interlock/relay_ctrl_lab/rev 2.0/relay_ctrl_lab.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Relay ctrl lab design in my own project?

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

Category and platform

Home automation and IoT

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/ograsdijk-centrex-pcb-relay-ctrl-lab-2" title="Relay ctrl lab 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/ograsdijk-centrex-pcb-relay-ctrl-lab-2.jpg" alt="Relay ctrl lab" width="1200" height="900">

A picture that opens the board, for a README

[![Relay ctrl lab](https://pcbkit.io/embed/boards/ograsdijk-centrex-pcb-relay-ctrl-lab-2.jpg?size=s)](https://pcbkit.io/boards/ograsdijk-centrex-pcb-relay-ctrl-lab-2)

Source

Repository: ograsdijk/CeNTREX-pcb
Board file: interlock/relay_ctrl_lab/rev 2.0/relay_ctrl_lab.kicad_pcb
Commit: 073b7a9
Licence: Not stated

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