Hzk65

josugoar·hzk65·pcb/hzk65_pcb/hzk65_pcb.kicad_pcb

About the Hzk65 PCB

Hzk65 is an open source RP2040/RP2350 PCB design by josugoar, published on GitHub under the MIT license. It is a 2-layer board measuring 314.3 × 100 mm, with 131 components from 9 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. By type, the board carries 65 switches, 65 diodes and 1 module.

It belongs with the keyboards designs in this gallery.

From the project

Modular assembly 65% keyboard

HizKey65 (/is̻ki/) is a modular assembly 65% keyboard with a socketed controller, hot-swap switch sockets, sandwich-mounted case and ANSI layout.

Built with KiCad and FreeCAD and manufactured by JLC Digital Manufacturing.

- hzk65: for Cherry MX compatible switches

Hzk65, from the project README — From the project README

Main components on the Hzk65

RaspberryPi_Pico

Hzk65 bill of materials (BOM)

131 components, 9 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RaspberryPi_Pico	RaspberryPi_Pico_Common_THT	A1
54	SW_Push	SW_Hotswap_Kailh_MX_1.00u	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +46
1	SW_Push	SW_Hotswap_Kailh_MX_2.00u	SW14
2	SW_Push	SW_Hotswap_Kailh_MX_1.50u	SW16, SW29
2	SW_Push	SW_Hotswap_Kailh_MX_1.75u	SW31, SW58
2	SW_Push	SW_Hotswap_Kailh_MX_2.25u	SW44, SW46
3	SW_Push	SW_Hotswap_Kailh_MX_1.25u	SW61, SW62, SW63
1	SW_Push	SW_Hotswap_Kailh_MX_6.25u	SW67
65	1N4148	D_SOD-123	D1, D2, D3, D4, D5, D6, D7, D8 +57

Hzk65 design files

The KiCad project lives in the josugoar/hzk65 repository on GitHub; these links point at the commit this page was built from.

Layoutpcb/hzk65_pcb/hzk65_pcb.kicad_pcb
Schematicpcb/hzk65_pcb/hzk65_pcb.kicad_sch
BOMpcb/hzk65_pcb/bom/hzk65_pcb.csv

Hzk65: common questions

What microcontroller does the Hzk65 use?

The Hzk65 is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Hzk65 PCB?

The Hzk65 measures 314.3 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hzk65?

131 components, from 9 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 Hzk65 design files?

From the josugoar/hzk65 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Hzk65 design in my own project?

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

Can I test firmware for the Hzk65 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.