HardLabs

Uni60 Hotswap

ShentoBento·Universal_PCBs·Uni60/UNI60_Hotswap/Uni60_Hotswap_KiCad/Uni60_Hotswap.kicad_pcb

Uni60 Hotswap PCB layout, top view — open source STM32 board by ShentoBento

About the Uni60 Hotswap PCB

Uni60 Hotswap is an open source STM32 PCB design by ShentoBento, published on GitHub. It is a 2-layer board measuring 284.7 × 94.2 mm, with 174 components from 18 distinct parts.

Its main chip is the STM32F072CBTx, from the STM32 family. Other key parts include the XC6206PxxxMR and USBLC6-2SC6. By type, the board carries 72 diodes, 9 capacitors, 6 connectors, 3 ICs, 2 switches and 1 resistor.

It belongs with the keyboards designs in this gallery.

From the project

A collection of Universal QMK Compatible PCBs, prioritizing layout selection, board compatibility, connector options

Most custom keyboard cases are designed around one specific PCB. The boards in this repo work the other way around. Each one is built to drop into as many cases of its form factor as possible, by supporting a wide range of layouts and matching the connector and mounting positions that different cases expect.

Each board's folder has its own README with full specs, layout diagrams and ordering files.

Uni60 Hotswap, from the project README
From the project README

Main components on the Uni60 Hotswap

STM32F072CBTxXC6206PxxxMRUSBLC6-2SC6

Uni60 Hotswap bill of materials (BOM)

174 components, 18 distinct parts.

QtyPartRefs
1
STM32F072CBTx
U1
1
XC6206PxxxMR
U2
1
USBLC6-2SC6
U3
5
Conn_01x04
J1, J2, J3, J4, J5
1
Conn_01x04
J6
1
TestPoint
GND1
63
MX_SW_solder
KC_0, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7 +55
6
MX_SW_solder
KC_BSLS1, KC_LALT1, KC_LCTL1, KC_RALT1, KC_RCTL1, KC_TAB1
1
MX_SW_solder
KC_CAPS1
9
MX_SW_solder
KC_LALT_1.25U1, KC_LCTL_1.25U1, KC_LGUI_1.25U1, KC_LSFT2, KC_MENU1, KC_RALT_1.25U1, KC_RCTL_1.25U1, KC_RGUI_1.25U1 +1
1
MX_SW_solder
KC_STEP1
2
SW_Push
SW1, SW2
72
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +64
5
100nF
C1, C2, C3, C4, C5
1
10uF
C6
2
1uF
C7, C8
1
0.1uF
C9
1
10k
R1

Uni60 Hotswap design files

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

Uni60 Hotswap: common questions

What microcontroller does the Uni60 Hotswap use?

The Uni60 Hotswap is built around the STM32F072CBTx, from the STM32 family.

How big is the Uni60 Hotswap PCB?

The Uni60 Hotswap measures 284.7 × 94.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Uni60 Hotswap?

174 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Uni60 Hotswap design files?

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

Can I use the Uni60 Hotswap design in my own project?

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

Can I test firmware for the Uni60 Hotswap without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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