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4 layers74.5 × 64.6 mmTimer pcb led, the printed circuit board in 3D

All file relative to the PCB of the timer project

Size
74.5 × 64.6 mm
Copper layers
4
Thickness
1.6 mm
Parts
15
Nets
12
Pads
47
Tracks, vias
83, 20
Pours
2
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
31 May 2025
Updated
12 Aug 2025

Overview

Timer pcb led is an open-source printed circuit board by electro-cafe, from the electro-cafe/Timer_PCB repository on GitHub. It is a 4-layer board of 74.5 × 64.6 mm with 15 parts on 12 nets, routed with 83 tracks and 20 vias.

Its parts include 9 ICs and 1 connector.

README

README.md

Timer_PCB

This repository contain all file relative to the PCB of the timer project.

Parts

15
QtyValueFootprintReferences
8~1_My_Custom_Library:WS2812B-Xinlight-5050RGBCU2, U3, U4, U5, U6, U7, U8, U9
4MountingHoleMountingHole:MountingHole_3.2mm_M3_DIN965_Pad_TopOnlyH1, H2, H3, H4
11_My_Custom_Library:WS2812B-Xinlight-5050RGBCU1
1JST_03Connector_JST:JST_XH_S3B-XH-A-1_1x03_P2.50mm_HorizontalJ1
1LOGOimage.preety:logo_electrocafe_10x10G***

Questions

How big is the Timer pcb led PCB?

It measures 74.5 × 64.6 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Timer pcb led use?

15 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 Timer pcb led KiCad files?

From the electro-cafe/Timer_PCB repository on GitHub, at the commit this page was made from: the board is timer-pcb-led/timer-pcb-led.kicad_pcb and its schematic timer-pcb-led/timer-pcb-led.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Timer pcb led design in my own project?

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

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