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4 layers30 × 64 mmLocalAudio, the printed circuit board in 3D

LocalAudio

melair/ktane5

Keep Talking and Nobody Explodes - Physical Edition

Size
30 × 64 mm
Copper layers
4
Thickness
1.6 mm
Parts
24
Nets
30
Pads
115
Tracks, vias
166, 62
Pours
6
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
3 Apr 2021
Updated
21 Oct 2026

Overview

LocalAudio is an open-source printed circuit board by melair, from the melair/ktane repository on GitHub. It is a 4-layer board of 30 × 64 mm with 24 parts on 30 nets, routed with 166 tracks and 62 vias.

Its parts include 12 capacitors, 5 resistors, 4 connectors, 1 IC and 1 diode.

README

README.md

Keep Talking and Nobody Explodes - Physical Version

Version Two

This is version two of my Keep Talking and Nobody Explodes physical bomb, you may refer to the version-one branch if you wish to see the first version progress.

Parts

24
QtyValueFootprintReferences
50.1uFCapacitor_SMD:C_0603_1608MetricC1, C5, C6, C7, C12
54.7kResistor_SMD:R_0603_1608MetricR1, R2, R3, R4, R5
41uFCapacitor_SMD:C_0603_1608MetricC3, C4, C8, C11
247uFCapacitor_SMD:C_0805_2012MetricC9, C10
110uFCapacitor_SMD:C_0603_1608MetricC2
1HeadphonesConnector_JST:JST_PH_B3B-PH-SM4-TB_1x03-1MP_P2.00mm_VerticalJ3
1InKTANE:KTANE Submodule Connector V2 - ShortJ1
1LOGOKTANE:KTANEIRL-0505G***
1PESD3V3S2BTPackage_TO_SOT_SMD:SOT-23D1
1SpeakerConnector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_VerticalJ2
1TLV320DAC32Package_DFN_QFN:VQFN-32-1EP_5x5mm_P0.5mm_EP3.5x3.5mm_ThermalViasU1
1VolumeConnector_JST:JST_PH_B3B-PH-SM4-TB_1x03-1MP_P2.00mm_VerticalJ4

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Questions

How big is the LocalAudio PCB?

It measures 30 × 64 mm and has 4 copper layers, 1.6 mm thick.

What parts does the LocalAudio use?

24 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 LocalAudio KiCad files?

From the melair/ktane repository on GitHub, at the commit this page was made from: the board is PCB/Modules/LocalAudio/LocalAudio.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the LocalAudio design in my own project?

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