HardLabs

Keyboard

GlassyBridge·Keyboard·PCB/Keyboard.kicad_pcb

Keyboard PCB layout, top view — open source Nordic nRF board by GlassyBridge
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About the Keyboard PCB

Keyboard is an open source Nordic nRF PCB design by GlassyBridge, published on GitHub under the MIT license. It is a 2-layer board measuring 314.3 × 137 mm, with 356 components from 41 distinct parts.

Its main chip is the MDBT50Q-1MV2, from the Nordic nRF family. Other key parts include the MT3608, USB6B1, MCP73831T-2ACI/OT, XIAO-NRF52840-SMD and MCP23017_ML. By type, the board carries 101 LEDs, 99 switches, 99 diodes, 22 resistors, 8 ICs and 8 capacitors.

It belongs with the keyboards, iot & wireless and displays & leds designs in this gallery.

From the project

Keyboard

- Works over USB-C (wired) or Bluetooth (wireless) - Integrated magnetic pogo pins for stable I2C connection and adding external modules (numberpads, macropads or OLED modules) - Integrated charging circuit for portability and wireless operation - Uses MX hotswap sockets for key switch connections - Features SK6812MINI-E back mounted LEDs for customizable per key RGB lighting - Includes a dedicated SWD interface for debugging and development - A dedicated slide switch to manage battery life

Keyboard, from the project README
From the project README

Main components on the Keyboard

MT3608USB6B1MDBT50Q-1MV2MCP73831T-2ACI/OTXIAO-NRF52840-SMDMCP23017_ML74LV1T08GV

Keyboard bill of materials (BOM)

356 components, 41 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MT3608
U1
1
USB6B1
U2
1
MDBT50Q-1MV2
U3
1
MCP73831T-2ACI/OT
MCP73831-2-OT
U4
1
XIAO-NRF52840-SMD
XIAO-nRF52840-SMD
U5
1
MCP23017_ML
U6
2
74LV1T08GV
U7, U8
3
C10487
Q_PMOS_GSD
Q1, Q2, Q3
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J1
1
CONN_02X03_ODD_EVEN
Conn_02x03_Odd_Even
J2
4
CONN_01X04_PIN
Conn_01x04_Pin
Conn1, Conn3, Conn5, Conn7
4
CONN_01X04_PIN
Conn_01x04_Pin
Conn2, Conn4, Conn6, Conn8
2
ESDA5V3L
ESD1, ESD2
1
SW_SPDT
SPDT1
1
D
SS34
88
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +80
2
SW_Push
SW28, SW98
2
SW_Push
SW30, SW43
2
SW_Push
SW45, SW70
2
SW_Push
SW57, SW59
Show 21 more
QtyPartRefs
1
SW_Push
SW76
2
SW_Push
SW90, SW97
1
SH1106
Brd1
1
SH1106
Brd2
99
SK6803MINI-E
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +91
99
C2099
D
D1, D2, D3, D4, D5, D6, D7, D8 +91
1
10UH
10uH
L1
1
22UH
22uH
L2
4
10UF
10uF
C1, C2, C3, C4
2
4.7UF
4.7uF
C5, C6
2
22UF
22uF
C7, C8
1
110K
110k
R1
2
5K1
R2, R4
3
100K
R3, R5, R6
4
4K7
R7, R12, R18, R20
2
27R
R8, R11
3
806K
R9, R16, R21
3
2M
R10, R17, R22
1
15K
15k
R13
2
10K
R14, R19
1
2K
R15

Keyboard design files

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

Keyboard: common questions

What microcontroller does the Keyboard use?

The Keyboard is built around the MDBT50Q-1MV2, from the Nordic nRF family.

How big is the Keyboard PCB?

The Keyboard measures 314.3 × 137 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard?

356 components, from 41 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 Keyboard design files?

From the GlassyBridge/Keyboard 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 Keyboard design in my own project?

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

Can I test firmware for the Keyboard without the hardware?

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

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