HardLabs

Hub16

joshajohnson·Hub16·Hardware/0.7-hs/Hub16.kicad_pcb

Hub16 PCB layout, top view — open source AVR/Arduino board by joshajohnson

About the Hub16 PCB

Hub16 is an open source AVR/Arduino PCB design by joshajohnson, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 89 × 100 mm, with 121 components from 24 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. Other key parts include the USBLC6-2SC6 and CY7C65632-28LTXCT. By type, the board carries 38 capacitors, 28 diodes, 16 relays, 16 resistors, 6 ICs and 5 connectors.

It belongs with the keyboards and usb & debug tools designs in this gallery.

From the project

A macro pad with 16 keys, two rotary encoders, a four port USB hub, and plenty of LEDs!

Hub16 is a macropad with a bunch of features you never knew you needed. They include:

- 16 Cherry MX compatible keys, along with switches in each encoder. - Two rotary encoders, enabling intuitive controls for a wide range of tools including CAD and photo / video editing. - Inbuilt USB 2.0 Hub with Type-C connectors, allowing connection to other keyboards, memory sticks, wireless receivers and more! - VIA and QMK compatibility, including a "macro" mode enabling the keys to be dynamically remapped on a host computer. - 11 addressable RGB LEDs to display state, or just light your desk up.

Hub16, from the project README
From the project README

Main components on the Hub16

USBLC6-2SC6ATMEGA32U4CY7C65632-28LTXCT

Hub16 bill of materials (BOM)

121 components, 24 distinct parts.

QtyPartRefs
4
USBLC6-2SC6
U1, U4, U5, U6
1
ATMEGA32U4
U2
1
CY7C65632-28LTXCT
U3
1
16MHz
Y1
1
12MHz
Y2
4
USB_C_Receptacle_USB2.0
J1, J3, J4, J5
1
AVR-ISP-6
J2
1
500mA
F1
3
200mA
F2, F3, F4
16
Kailh Hotswap Socket
K1, K2, K3, K4, K6, K7, K8, K9 +8
1
EVQPUL
SW1
1
LED
D1
11
WS2812B
D2, D3, D4, D10, D16, D22, D23, D29 +3
16
1N4148
D5, D6, D7, D8, D11, D12, D13, D14 +8
5
600R
FB1, FB2, FB3, FB4, FB5
2
10u
C1, C12
4
15p
C2, C3, C17, C18
5
1u
C4, C5, C19, C20, C22
27
100n
C6, C7, C8, C9, C10, C11, C13, C14 +19
3
5K1
R1, R3, R4
Show 4 more
QtyPartRefs
7
10K
R2, R5, R8, R9, R10, R11, R12
2
22R
R6, R7
1
649R
R14
3
10K
RN1, RN3, RN5

Hub16 design files

The KiCad project lives in the joshajohnson/Hub16 repository on GitHub; these links point at the commit this page was built from.

Hub16: common questions

What microcontroller does the Hub16 use?

The Hub16 is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Hub16 PCB?

The Hub16 measures 89 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hub16?

121 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Hub16 design files?

From the joshajohnson/Hub16 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Hub16 design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which joshajohnson chose for the repository.

Can I test firmware for the Hub16 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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