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Shift register spi breakout

christrotter·shift-register-spi-breakout-pcb

Shift register spi breakout layout, top view — open source board by christrotter
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About the Shift register spi breakout

Shift register spi breakout is an open source PCB design by christrotter, published on GitHub under the MIT license. It is a 2-layer board measuring 75 × 30 mm, with 15 components from 7 distinct parts.

By type, the board carries 5 resistors, 4 capacitors and 1 connector.

It belongs with the keyboards and dev boards & breakouts designs in this gallery.

From the project

Simple breakout board that gets you 16 rows and 16 cols for your QMK matrix.

A simple? breakout board that provides 32 matrix pins (16 row and 16 column) over SPI - using only 6 MCU pins! Designed for and tested in QMK - requires a custom matrix. Expects you to be using ROW2COL diode orientation.

This document includes: - Understanding shift registers (rather extensive) - Matrix-inator PCB notes - Matrix-inator schematic detail - Sample code

Shift register spi breakout, from the project README
From the project README

Shift register spi breakout bill of materials (BOM)

15 components, 7 distinct parts.

QtyPartRefs
1
vik-module-connector
J7
1
2N7002
COL_CS_MOS1
2
MC74HC589ADR2G
REG-COL3, REG-COL4
2
74HC595D
REG-ROW1, REG-ROW2
4
100nF
C1, C3, C5, C6
1
1206W4F1002T5E
R1
4
4D03WGJ0103T5E
R2, R3, R4, R5

Shift register spi breakout design files

The KiCad project lives in the christrotter/shift-register-spi-breakout-pcb repository on GitHub; these links point at the commit this page was built from.

Shift register spi breakout: common questions

How big is the Shift register spi breakout?

The Shift register spi breakout measures 75 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Shift register spi breakout?

15 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Shift register spi breakout design files?

From the christrotter/shift-register-spi-breakout-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Shift register spi breakout design in my own project?

Yes, under the terms of its MIT license, which christrotter chose for the repository.

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