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Macro-Keyboard v4

NikolasKelava·macro-keyboard·hardware/PCB/KiCad/Macro-Keyboard-v4/Macro-Keyboard-v4.kicad_pcb

Macro-Keyboard v4 PCB layout, top view — open source Nordic nRF board by NikolasKelava
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About the Macro-Keyboard v4 PCB

Macro-Keyboard v4 is an open source Nordic nRF PCB design by NikolasKelava, published on GitHub under the MIT license. It is a 4-layer board measuring 81 × 112.2 mm, with 65 components from 25 distinct parts.

Its main chip is the MDBT50Q-1MV2, from the Nordic nRF family. Other key parts include the AS5600-ASOT, USBLC6-2SC6 and BQ24040DSQR. By type, the board carries 15 switches, 15 capacitors, 13 diodes, 11 resistors, 4 ICs and 4 connectors.

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

From the project

A custom, wireless Bluetooth LE macro keypad (12 keys + magnetic rotary encoder + OLED) built on an nRF52840 module and running ZMK

A custom, wireless Bluetooth LE macro keypad with 12 mechanical keys, a magnetic rotary encoder, and a 128×64 OLED built on a Nordic nRF52840 module and running ZMK. Keys and profiles are configurable live over ZMK Studio; the encoder is a per-profile knob (volume / vertical scroll / horizontal scroll / browser tabs). Battery-powered (2000 mAh LiPo) with USB-C charging.

Macro-Keyboard v4, from the project README
From the project README

Main components on the Macro-Keyboard v4

AS5600-ASOTUSBLC6-2SC6BQ24040DSQRMDBT50Q-1MV2

Macro-Keyboard v4 bill of materials (BOM)

65 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AS5600-ASOT
IC1
1
USBLC6-2SC6
U2
1
BQ24040DSQR
U4
1
MDBT50Q-1MV2
U6
1
Q13FC1350000400
Seiko Epson
X1
1
5VUSB-PIN+
J3
1
5VUSB-PIN-
J4
1
JST_03
J5
1
Conn_ARM_JTAG_SWD_10
J6
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
JUSB1
13
Keyswitch
S1, S13, S14, S15, S16, S17, S18, S19 +5
1
POWER-SWITCH
SW1
1
C720477
RESET
SW4
13
C81598
Diode
D1, D13, D14, D15, D16, D17, D18, D19 +5
1
10 µH, ≥ 80 mA
L1
6
10UF
10uF
C1, C2, C4, C5, C8, C13
9
0.1UF
0.1uF
C3, C6, C7, C9, C11, C12, C14, C15 +1
2
5.1K
5.1k
R1, R2
1
2k
R3
2
10K
10k
R4, R5
Show 5 more
QtyPartRefs
1
240K
240k
R6
1
330K
330k
R10
1
1M
R11
2
4.7K
4.7k
R13, R14
1
1k
R15

Macro-Keyboard v4 design files

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

Macro-Keyboard v4: common questions

What microcontroller does the Macro-Keyboard v4 use?

The Macro-Keyboard v4 is built around the MDBT50Q-1MV2, from the Nordic nRF family.

How big is the Macro-Keyboard v4 PCB?

The Macro-Keyboard v4 measures 81 × 112.2 mm, has 4 copper layers and is 1.69 mm thick.

How many components are on the Macro-Keyboard v4?

65 components, from 25 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 Macro-Keyboard v4 design files?

From the NikolasKelava/macro-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 Macro-Keyboard v4 design in my own project?

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

Can I test firmware for the Macro-Keyboard v4 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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