HardLabs

Gingham

yiancar·gingham_pcb·pcb/gingham.kicad_pcb

Gingham PCB layout, top view — open source AVR/Arduino board by yiancar
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About the Gingham PCB

Gingham is an open source AVR/Arduino PCB design by yiancar, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 285.8 × 123.8 mm, with 160 components from 29 distinct parts.

Its main chip is the ATMEGA328-PU, from the AVR/Arduino family. Other key parts include the MCP23008-E_P. By type, the board carries 71 switches, 66 diodes, 8 resistors, 5 capacitors, 3 connectors and 2 ICs.

It belongs with the keyboards designs in this gallery.

From the project

A 60% throughole keyboard inspired by the Plaid

The ANSI/ISO keyboard kit made using ONLY through hole components and inspired by the Plaid.

To alter the pcb use KiCAD V5.0 or newer as it already contains most of the libraries. The additional libraries are provided.

This project is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

If you have remixed, adapted or build upon this work and wish to remove the non-commercial clause for your own project please contact me at https://www.yiancar-designs.com. Your request is more than likely to be granted. The non-commercial part of the license is intended…

Gingham, from the project README
From the project README

Main components on the Gingham

ATMEGA328-PUMCP23008-E_P

Gingham bill of materials (BOM)

160 components, 29 distinct parts.

QtyPartRefs
1
ATMEGA328-PU
U1
1
MCP23008-E_P
U2
1
16MHz
Y1
1
Molex-0548190519
J1
1
ISP
J2
1
I2C
J3
1
100mA
F1
1
SW_Push
SW1
51
SW_Push
SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 +43
2
SW_Push
SW16, SW43
1
SW_Push
SW30
2
SW_Push
SW31, SW45
2
SW_Push
SW44, SW46
1
SW_Push
SW58
8
SW_Push
SW60, SW61, SW62, SW64, SW65, SW66, SW67, SW70
1
SW_Push
SW63
1
RESET
SW68
1
BOOT
SW69
1
G***
svg2mod
1
RED
LED1
Show 9 more
QtyPartRefs
1
GREEN
LED2
64
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +56
2
3.6V
D15, D16
1
4.7u
C1
2
100n
C2, C3
2
22p
C4, C5
3
1.5k
R1, R7, R8
2
75R
R2, R3
3
10k
R4, R5, R6

Gingham design files

The KiCad project lives in the yiancar/gingham_pcb repository on GitHub; these links point at the commit this page was built from.

Gingham: common questions

What microcontroller does the Gingham use?

The Gingham is built around the ATMEGA328-PU, from the AVR/Arduino family.

How big is the Gingham PCB?

The Gingham measures 285.8 × 123.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Gingham?

160 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the Gingham design files?

From the yiancar/gingham_pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Gingham design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Gingham without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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