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67-handwire split keyboard

verdriet6·67-handwire-split-keyboard·schematic/67.kicad_sch

67-handwire split keyboard

About the 67-handwire split keyboard PCB

67-handwire split keyboard is an open source AVR/Arduino PCB design by verdriet6, published on GitHub. It is a board, with 28 components from 4 distinct parts.

Its main chip is the Arduino_Pro_Micro, from the AVR/Arduino family. Other key parts include the TRRS. By type, the board carries 12 switches, 12 diodes and 4 ICs.

It belongs with the keyboards designs in this gallery.

From the project

handwired split mechanical keyboard running on qmk firmware consisting of 12 keys

buy the components as mentioned in the bill of materials.

3d print the enclosures (files of which you can find in the cad folder) and use this assembly guide:

2) insert the bottom plates + heat inserts,

3) use m3 screws to thread the case and the bottom plates,

Main components on the 67-handwire split keyboard

Arduino_Pro_MicroTRRS

67-handwire split keyboard bill of materials (BOM)

28 components, 4 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
Arduino_Pro_Micro
U1, U2
2
TRRS
U3, U4
12
—
S1, S2, S3, S4, S5, S6, S7, S8 +4
12
—
D1, D2, D3, D4, D5, D6, D7, D8 +4

67-handwire split keyboard design files

The KiCad project lives in the verdriet6/67-handwire-split-keyboard repository on GitHub; these links point at the commit this page was built from.

67-handwire split keyboard: common questions

What microcontroller does the 67-handwire split keyboard use?

The 67-handwire split keyboard is built around the Arduino_Pro_Micro, from the AVR/Arduino family.

How many components are on the 67-handwire split keyboard?

28 components, from 4 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 67-handwire split keyboard design files?

From the verdriet6/67-handwire-split-keyboard repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the 67-handwire split keyboard design in my own project?

The repository has no license, so all rights stay with verdriet6. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 67-handwire split keyboard 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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