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2 layers30.5 × 2 mmBlinking board, the printed circuit board in 3D

This is the first PCB I have designed(tuturial) It is a simple LED chaser board

Size
30.5 × 2 mm
Copper layers
2
Thickness
1.6 mm
Parts
19
Nets
20
Pads
58
Tracks, vias
443, 0
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
4 Jun 2026
Updated
10 Jun 2026

Overview

Blinking board is an open-source printed circuit board by layerblayerplus-lgtm, from the layerblayerplus-lgtm/blinking-board repository on GitHub. It is a 2-layer board of 30.5 × 2 mm with 19 parts on 20 nets, routed with 443 tracks and 0 vias.

It is built around the NE555P. Its parts include 10 diodes, 2 capacitors, 2 resistors, 2 ICs and 2 connectors.

Main components

1

README

README.md

blinking-board

I wanted to build this as i have never designed a pcb before This is the first PCB I have designed It is a simple LED chaser board. with text saying MYFIRST PCB. I Learned a lot in this tutorial as i have never used any thing like kicad to design a pcb. I learned: how to design a schematic how to route diffrent components together on a pcb how to generate drill files and how to render my pcb.

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                             schematic
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                                 pcb
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                           order info/image
Screenshot 2026-06-03 at 9 07 51 PM
AmountPartLink
1xNE555Phttps://www.digikey.ca/en/products/detail/texas-instruments/NE5534AP/378264?gclsrc=aw.ds&gad_source=4&gad_campaignid=17336435733&gbraid=0AAAAADrbLljDHfacCu98DnK46yYAiNN37&gclid=CjwKCAjw857RBhAgEiwAI-1yKCxYrpwuLAIqkdFffcmWrlOUvPUjZy6fNLhgflxf62_DjCdUeT-yBRoCY0oQAvD_BwE
1xCD4017https://www.digikey.ca/en/products/detail/texas-instruments/CD4017BNSR/525881?gclsrc=aw.ds&gad_source=1&gad_campaignid=17336435733&gbraid=0AAAAADrbLli9eV0U9YydH_Gi2Pu6vT9lb&gclid=CjwKCAjw857RBhAgEiwAI-1yKEFHFKrDZmENSb6Irk_XqSna2J6SexJ6_dY74dbEH2ZHTAESL-auxhoCDvkQAvD_BwE
1xConn_01x02_Sockethttps://www.digikey.ca/en/products/detail/harwin-inc/M50-3030242/7043990?gclsrc=aw.ds&gad_source=1&gad_campaignid=17336435733&gbraid=0AAAAADrbLli9eV0U9YydH_Gi2Pu6vT9lb&gclid=CjwKCAjw857RBhAgEiwAI-1yKOKAOM5ycakR_TIsvxZ-_LortzUTmvxOxrnKzlbsM__oUnLh41udrxoClSYQAvD_BwE
1xConn_01x01_Sockethttps://www.digikey.ca/en/products/detail/3m/929870-01-01-RA/1239297?gclsrc=aw.ds&gad_source=1&gad_campaignid=20557660208&gbraid=0AAAAADrbLlghw5W8IU891OcnWO9k1tg4W&gclid=CjwKCAjw857RBhAgEiwAI-1yKGBakMZoKuv8ROv9sMHdHia73StzqqZ4MR1u3N-AI8TLJU2ulumzIxoC0OAQAvD_BwE
1x1uF electrolytic capacitorhttps://canada.newark.com/multicomp-pro/mcrh63v105m5x11/aluminum-electrolytic-capacitor/dp/70K9783?&CMP=KNC-GCA-PMAX-SHOPPING-ONBOARD-COMP-Passives-NEW&gad_source=4&gad_campaignid=23072788681&gbraid=0AAAAAD5U_g3dmjRABjlUmhYrklgSELEmQ&gclid=CjwKCAjw857RBhAgEiwAI-1yKDafVkSZ6bSH6IqRWV6y1I__VvVVlMmQyR6a29TBU7ZBOuOQsFD6LBoCPIoQAvD_BwE
1x0.01 uF capacitorhttps://canada.newark.com/multicomp/mc0805y103m101a2-54mm/ceramic-capacitor-0-01uf-100v/dp/46P6661?&CMP=KNC-GCA-GEN-SHOPPING-PMAX-CLM-NCA-WF4799466&gad_source=4&gad_campaignid=23881382570&gbraid=0AAAAAD8yeHn4gXpNvGW_9arXEgFB-f0bE&gclid=CjwKCAjw857RBhAgEiwAI-1yKGyOpQkHTAFZOnUlkoaVHCC1gItcL47PEgV--doMpDf5_KtqjoYiPRoCuTsQAvD_BwE
1x1k ohm resistor https://www.digikey.ca/en/products/detail/yageo/MFR-25FBF52-1K/13011
1x470 ohm resistor https://www.digikey.ca/en/products/detail/stackpole-electronics-inc/CF14JT470R/1741440?gclsrc=aw.ds&gad_source=1&gad_campaignid=17336435733&gbraid=0AAAAADrbLli9eV0U9YydH_Gi2Pu6vT9lb&gclid=CjwKCAjw857RBhAgEiwAI-1yKGVDe_vsmDamDZs0RYLGy-P_LA1DTveZcQqoUFegQ9pAzUeBEfvqZRoCMYMQAvD_BwE
1xpotentiometerhttps://www.digikey.ca/en/products/detail/bourns-inc/PDB181-K415K-503B/4699119?gclsrc=aw.ds&gad_source=1&gad_campaignid=20572521725&gbraid=0AAAAADrbLlgU80Fgg_ZZC3hnD8Q9Pdjic&gclid=CjwKCAjw857RBhAgEiwAI-1yKBkQoTf2LaBqW23FCYreyX4lMrzQ9FPcC1UHQ5OCIpLQ0JAP41y-YRoCH_cQAvD_BwE
10xLEDShttps://ca.robotshop.com/products/led-assortment-set-25pk?gad_source=1&gad_campaignid=20159687494&gbraid=0AAAAAD_f_xy1iMiiwn_VorgSJIpXvRzDT&gclid=CjwKCAjw857RBhAgEiwAI-1yKJndrNXQRV32CD8v7o-xFeJOGVIy5UZixvlGWDBzWm7VK62wCOhYBBoC3u4QAvD_BwE

Parts

19
QtyValueFootprintReferences
10LEDLED_THT:LED_D3.0mmD1, D2, D3, D4, D5, D6, D7, D8, D9, D10
1470Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR2
1CD4017BNSRCD4017:NS16U2
1C_PolarizedCapacitor_THT:CP_Radial_D5.0mm_P2.00mmC1
1C_SmallCapacitor_THT:C_Disc_D7.5mm_W2.5mm_P5.00mmC2
1Conn_01x01_SocketConnector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_VerticalJ2
1Conn_01x02_SocketConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ1
1NE555PPackage_DIP:DIP-8_W7.62mmU1
1RResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR1
1R_PotentiometerPotentiometer_THT:Potentiometer_Vishay_T93YA_VerticalRV1

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Questions

How big is the Blinking board PCB?

It measures 30.5 × 2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Blinking board use?

19 parts, built around the NE555P. 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 Blinking board KiCad files?

From the layerblayerplus-lgtm/blinking-board repository on GitHub, at the commit this page was made from: the board is PCB./BLINKING BOARD.kicad_pcb and its schematic PCB./BLINKING BOARD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Blinking board design in my own project?

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