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2 layers52 × 45 mmCentralNode, the printed circuit board in 3D
Size
52 × 45 mm
Copper layers
2
Thickness
1.6 mm
Parts
21
Nets
23
Pads
77
Tracks, vias
268, 18
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
19 Oct 2026
Updated
4 Nov 2026

Overview

CentralNode is an open-source printed circuit board by SanchakGarg, from the SanchakGarg/Hexagon-generator repository on GitHub. It is a 2-layer board of 52 × 45 mm with 21 parts on 23 nets, routed with 268 tracks and 18 vias.

It is built around the PCF8574RGTR(UMW) and XT60-M. Its parts include 6 connectors, 6 inductors, 5 resistors and 1 IC.

Main components

2

Parts

21
QtyValueFootprintReferences
6Conn_01x04Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_VerticalL1, L2, L3, L4, L5, L6
310KResistor_SMD:R_0805_2012MetricR1, R2, R3
3Conn_01x02Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_VerticalJ1, J2, J3
3MountingHoleMountingHole:MountingHole_3.2mm_M3H1, H2, H3
210KResistor_SMD:R_0603_1608MetricR4, R5
1Conn_01x03Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_VerticalJ7
1Conn_01x08_PinConnector_JST:JST_EH_B8B-EH-A_1x08_P2.50mm_VerticalJ4
1PCF8574RGTRPCF8574RGTR:QFN50P300X300X100-17NU1
1XT60-MAMASS_XT60-M:AMASS_XT60-MJ5

Questions

How big is the CentralNode PCB?

It measures 52 × 45 mm and has 2 copper layers, 1.6 mm thick.

What parts does the CentralNode use?

21 parts, built around the PCF8574RGTR(UMW) and XT60-M. 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 CentralNode KiCad files?

From the SanchakGarg/Hexagon-generator repository on GitHub, at the commit this page was made from: the board is Circuits/CentralNode/CentralNode.kicad_pcb and its schematic Circuits/CentralNode/CentralNode.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the CentralNode design in my own project?

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

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