HardLabs

PCB

MaprilBear·Keebo·hw/PCB/PCB.kicad_pcb

PCB layout, top view — open source Nordic nRF board by MaprilBear

About the PCB

PCB is an open source Nordic nRF PCB design by MaprilBear, published on GitHub. It is a 2-layer board measuring 325 × 95.7 mm, with 270 components from 25 distinct parts.

Its main chip is the TM4C123GH6PMI7, from the Nordic nRF family. Other key parts include the TXU0101DCKR and 74HC595. By type, the board carries 67 capacitors, 65 relays, 65 LEDs, 65 diodes, 4 ICs and 3 connectors.

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

From the project

USB and Bluetooth Keyboard with LCD and RGB

Main components on the PCB

TXU0101DCKRTM4C123GH6PMI774HC595

PCB bill of materials (BOM)

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

QtyPartRefs
1
TXU0101DCKR
IC1
1
TM4C123GH6PMI7
XIAO-nRF52840-SMD
U1
2
74HC595
U3, U4
1
Conn_01x02
J1
1
CONN_01X07_PIN
Adafruit TFT
J2
1
Conn_01x05
J5
51
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +43
1
KEYSW
K14
6
KEYSW
K15, K61, K62, K63, K65, K66
2
KEYSW
K16, K29
1
KEYSW
K31
2
KEYSW
K43, K46
1
KEYSW
K57
1
KEYSW
K64
1
RotaryEncoder_Switch
SW2
65
SK6812-MINI-E
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +57
65
1N4448W
D1, D2, D3, D4, D5, D6, D7, D8 +57
2
1.0U
100nF
C1, C12
5
0.1U
100nF
C2, C3, C4, C5, C19
1
0.1UF
100nF
C6
Show 5 more
QtyPartRefs
1
4.7UF
100nF
C7
2
10P
100nF
C8, C9
1
0.01U
100nF
C10
1
2.2U
100nF
C11
54
100nF
C20, C21, C22, C23, C24, C25, C26, C27 +46

PCB design files

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

PCB: common questions

What microcontroller does the PCB use?

The PCB is built around the TM4C123GH6PMI7, from the Nordic nRF family.

How big is the PCB?

The PCB measures 325 × 95.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PCB?

270 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 PCB design files?

From the MaprilBear/Keebo 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 PCB design in my own project?

The repository has no license, so all rights stay with MaprilBear. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the PCB 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.

More boards in Keebo

Similar boards