HardLabs

Bmacro Base V2

KipJM·blackmacro-hardware·PCB/blackmacro_base/blackmacro_base.kicad_pcb

Bmacro Base V2 PCB layout, top view — open source Raspberry Pi board by KipJM
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About the Bmacro Base V2 PCB

Bmacro Base V2 is an open source Raspberry Pi PCB design by KipJM, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 182.6 × 130.9 mm, with 133 components from 40 distinct parts.

Its main chip is the RASPBERRYPI_PICO_2W, from the Raspberry Pi family. Other key parts include the HTP4056-42-ESOP8, 74HC238, SN74LVC1T45DBV, BQ27427 and MT3608L. By type, the board carries 27 diodes, 25 capacitors, 21 LEDs, 14 resistors, 5 ICs and 4 connectors.

It belongs with the keyboards and robotics & motion designs in this gallery.

From the project

An open source, smaller, more configurable, and more capabable video editing keyboard based on the raspberry Pi Pico 2W.

A bluetooth-capable condensed macro keyboard with a motorized jog wheel, powered by a Raspberry Pi Pico 2W.

Supports remappable keyboard input, smooth scrolling, MIDI input, or driverless Davinci Resolve control through reverse-engineered HID emulation.

Each key is a hotswappable MX-style plateless switch with a reverse-mounted addressable RGB LED. The 2u and 1.5u in/out clips/timeline keys also feature screw-mount stabilizers.

Bmacro Base V2, from the project README
From the project README

Main components on the Bmacro Base V2

HTP4056-42-ESOP874HC238SN74LVC1T45DBVBQ27427MT3608LRASPBERRYPI_PICO_2W

Bmacro Base V2 bill of materials (BOM)

133 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
HTP4056-42-ESOP8
U1
1
74HC238
U2
1
SN74LVC1T45DBV
U3
1
BQ27427
U4
1
MT3608L
U5
1
RASPBERRYPI_PICO_2W
RaspberryPi_Pico_W
A1
3
AO3415
Q1, Q2, Q3
1
Dial_PowerConn
J3
1
Dial_MagEncoderConn
J4
1
Dial_MotorControlConn
J5
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J6
1
FLY.906090.6000
BT1
1
hold=2, trip=3.5
F1
1
OLED_Display
O1
2
RotaryEncoder_Switch
RENC1, RENC2
2
2u
ST_LA1, ST_LA2
1
3u
ST_LE1
1
SW_SPDT
SW1
2
SW_Push_45deg
SW_LA1, SW_LA2
16
SW_Push_45deg
SW_LB1, SW_LB2, SW_LB3, SW_LB4, SW_LC1, SW_LC2, SW_LC3, SW_LC4 +8
Show 20 more
QtyPartRefs
1
SW_Push_45deg
SW_LE2
1
Conn_01x02_Socket
SW_MOD1
2
SW_Push_45deg
SW_RA1, SW_RA2
1
10k, 43C=4.791k
TH1
21
SK6812MINI-E
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +13
24
1N4148WS
D1, D2, D3, D4, D5, D6, D7, D8 +16
2
SS54
D25, D27
1
SS54_optional
D26
1
4.7UH
4.7uH
L1
5
10UF
10uF
C1, C2, C19, C21, C25
12
0.1UF
0.1uF
C3, C4, C5, C6, C7, C8, C9, C10 +4
2
22UF
22uF
C13, C17
4
3.3UF
3.3uF
C15, C16, C20, C22
2
OPTIONAL
C23, C24
1
0.4
R1
2
1.2K
1.2k
R4, R9
6
8.2K
8.2k
R5, R6, R7, R8, R12, R13
3
5.1K
5.1k
R10, R11, R14
1
37.4K
37.4k
R15
1
100K
100k
R16

Bmacro Base V2 design files

The KiCad project lives in the KipJM/blackmacro-hardware repository on GitHub; these links point at the commit this page was built from.

Bmacro Base V2: common questions

What microcontroller does the Bmacro Base V2 use?

The Bmacro Base V2 is built around the RASPBERRYPI_PICO_2W, from the Raspberry Pi family.

How big is the Bmacro Base V2 PCB?

The Bmacro Base V2 measures 182.6 × 130.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bmacro Base V2?

133 components, from 40 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 Bmacro Base V2 design files?

From the KipJM/blackmacro-hardware 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 Bmacro Base V2 design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which KipJM chose for the repository.

Can I test firmware for the Bmacro Base V2 without the hardware?

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

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