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2 layersRing light, the printed circuit board in 3D

sym-lib-table references two custom symbol libraries by absolute path:

Copper layers
2
Thickness
1.6 mm
Parts
13
Nets
17
Pads
39
Tracks, vias
79, 12
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
23 Aug 2026
Updated
23 Aug 2026

Overview

Ring light is an open-source printed circuit board by LocalhostCMD, from the LocalhostCMD/LED-Light-Ring repository on GitHub, published under the MIT licence. It is a 2-layer board with 13 parts on 17 nets, routed with 79 tracks and 12 vias.

It is built around the ASMB-MTB1-0A3A2. Its parts include 6 resistors, 3 transistors, 1 capacitor and 1 diode.

Main components

1

README

README.md

Ring Light

KiCad project for a ring light PCB.

Contents

  • Ring_light.kicad_pro — project file
  • Ring_light.kicad_sch — schematic
  • Ring_light.kicad_pcb — PCB layout
  • sym-lib-table — project symbol library table

Built with KiCad 10.

⚠️ Missing symbol libraries

sym-lib-table references two custom symbol libraries by absolute path:

text
C:/Users/thedo/Documents/pcbs/Nightlight_parts.kicad_sym
C:/Users/thedo/Documents/pcbs/Nightlights.kicad_sym

These .kicad_sym files are not included in this repo. If you open the schematic on another machine (or someone else clones this repo), KiCad won't be able to resolve those symbols until you either:

  1. Copy Nightlight_parts.kicad_sym and Nightlights.kicad_sym into this repo (e.g. a libraries/ folder), and update sym-lib-table to use a project-relative path, such as:
    text
    (lib (name "Nightlight_parts") (type "KiCad") (uri "${KIPRJMOD}/libraries/Nightlight_parts.kicad_sym") (options "") (descr ""))
  2. Or keep them in a fixed location and update the path there.

Getting started

Clone the repo and open Ring_light.kicad_pro in KiCad 10+.

Notes

  • *.kicad_prl (per-user local project settings) and KiCad's automatic -backups/ zip folders are excluded via .gitignore since they're machine-local and change on every save.

Parts

13
QtyValueFootprintReferences
31kResistor_SMD:R_0402_1005MetricR4, R5, R6
347Resistor_SMD:R_0402_1005MetricR1, R2, R3
3Q_NPN_BCEPackage_TO_SOT_SMD:SOT-23Q1, Q2, Q3
1100nFCapacitor_SMD:C_0402_1005MetricC1
1ASMB-MTB1-0A3A2LED_SMD:LED_Avago_PLCC4_3.2x2.8mm_CWD12
1BatteryBattery:BatteryHolder_Keystone_2479_3xAAABT1
1Conn_02x04_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_VerticalDigispark1

Questions

What parts does the Ring light use?

13 parts, built around the ASMB-MTB1-0A3A2. 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 Ring light KiCad files?

From the LocalhostCMD/LED-Light-Ring repository on GitHub, at the commit this page was made from: the board is Ring_light.kicad_pcb and its schematic Ring_light.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Ring light 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).

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