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2 layers32.5 × 25.4 mmBreakout, the printed circuit board in 3D

A breakout board and python class for using it. Intended to add fun bling to FRC robots.

Size
32.5 × 25.4 mm
Copper layers
2
Thickness
1.6 mm
Parts
12
Nets
11
Pads
34
Tracks, vias
28, 2
Pours
2
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
10 Oct 2025
Updated
31 Dec 2025

Overview

Breakout is an open-source printed circuit board by 2468shrm, from the 2468shrm/msgeq7 repository on GitHub. It is a 2-layer board of 32.5 × 25.4 mm with 12 parts on 11 nets, routed with 28 tracks and 2 vias.

It is built around the SJ-3523-SMT-TR. Its parts include 4 capacitors, 4 connectors, 2 resistors and 1 IC. It belongs with the interfaces and adapters boards of this library.

Main components

1

README

README.md

msgeq7

A PCB to interface an MSGEQ7 seven channel graphic equalizer IC to my smart sensor platform link. The board has a microphone input jack, the MSGEQ7 IC, and three 3-position square pin headers. One header for RESET, one for STROBE, and one for the analog OUTPUT. These are connected to two DIOs and an AIN, respectively.

Parts

12
QtyValueFootprintReferences
3Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ2, J3, J4
2100nFCapacitor_SMD:C_0805_2012MetricC3, C4
110nFCapacitor_SMD:C_0805_2012MetricC2
1200kResistor_SMD:R_0805_2012MetricR1
122kResistor_SMD:R_0805_2012MetricR2
130pFCapacitor_SMD:C_0805_2012MetricC1
1MSGEQ7Package_DIP:DIP-8_W7.62mm_LongPadsU1
1SJ-3523-SMT-TRAppreciate:SJ3523SMTTRJ1

The 11 most common of 12 parts.

Questions

How big is the Breakout PCB?

It measures 32.5 × 25.4 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Breakout use?

12 parts, built around the SJ-3523-SMT-TR. 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 Breakout KiCad files?

From the 2468shrm/msgeq7 repository on GitHub, at the commit this page was made from: the board is breakout/breakout.kicad_pcb and its schematic breakout/breakout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Breakout design in my own project?

Its repository states no licence, so its author keeps all rights: ask 2468shrm before reusing the design.

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