HardLabs

SunsetterR2 Hotswap

PiKeeb·sunsetterR2-keyboard·pcb/SunsetterR2_Hotswap/SunsetterR2_Hotswap.kicad_pcb

SunsetterR2 Hotswap PCB layout, top view — open source AVR/Arduino board by PiKeeb

About the SunsetterR2 Hotswap PCB

SunsetterR2 Hotswap is an open source AVR/Arduino PCB design by PiKeeb, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 345.7 × 98.9 mm, with 174 components from 28 distinct parts.

Its main chip is the ATmega32U4-A, from the AVR/Arduino family. Other key parts include the USBLC6-2P6. By type, the board carries 86 relays, 18 capacitors, 12 LEDs, 7 resistors, 2 ICs and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

PCB files for Sunsetter R2 keyboard (originally designed for Charue Design)

A 65 + 10% F-Key Column Keyboard originally made and sold by Charue Design.

R2 includes RGB underglow, new case colors, a hotswap option, and a recessed USB port.

All the designs and files are provided "AS IS" without any warranty or support.

The designs are licensed under CC BY-SA 4.0 International Licence

SunsetterR2 Hotswap, from the project README
From the project README

Main components on the SunsetterR2 Hotswap

USBLC6-2P6ATmega32U4-A

SunsetterR2 Hotswap bill of materials (BOM)

174 components, 28 distinct parts.

QtyPartRefs
1
USBLC6-2P6
U1
1
ATmega32U4-A
U2
1
16MHz
Y1
1
USB_C_Receptacle_USB2.0
J1
1
Fuse_Small
F1
1
ISP_Header
ISP1
71
Key
K1, K2, K3, K4, K5, K6, K7, K8 +63
1
Key
K16A1
1
Key
K20
2
Key
K37, K65
6
Key
K37A1, K53, K70, K71, K72, K74
3
Key
K49, K53A1, K73
1
Key
K74A1
1
Key
K75
42
BAV70
KD1, KD2, KD3, KD4, KD5, KD6, KD7, KD8 +34
1
Stabilizer
ST72
1
SW_Push
SW1
2
LED
LED1, LED1a1
10
WS2812B
RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8 +2
1
FerriteBead_Small
FB1
Show 8 more
QtyPartRefs
14
0.1u
C1, C2, C3, C4, C6, C7, C8, C9 +6
1
4.7u
C5
2
22pF
C16, C17
1
1u
C18
2
5.1k
R1, R2
2
10k
R3, R7
1
1k
R4
2
22
R5, R6

SunsetterR2 Hotswap design files

The KiCad project lives in the PiKeeb/sunsetterR2-keyboard repository on GitHub; these links point at the commit this page was built from.

SunsetterR2 Hotswap: common questions

What microcontroller does the SunsetterR2 Hotswap use?

The SunsetterR2 Hotswap is built around the ATmega32U4-A, from the AVR/Arduino family.

How big is the SunsetterR2 Hotswap PCB?

The SunsetterR2 Hotswap measures 345.7 × 98.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SunsetterR2 Hotswap?

174 components, from 28 distinct parts. The full bill of materials is listed on this page.

Where can I download the SunsetterR2 Hotswap design files?

From the PiKeeb/sunsetterR2-keyboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the SunsetterR2 Hotswap design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which PiKeeb chose for the repository.

Can I test firmware for the SunsetterR2 Hotswap 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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