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Carpo right

heyitscassio·carpo·pcb/right/carpo_right.kicad_pcb

Carpo right PCB layout, top view — open source Nordic nRF board by heyitscassio
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About the Carpo right PCB

Carpo right is an open source Nordic nRF PCB design by heyitscassio, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 126.3 × 92.7 mm, with 64 components from 27 distinct parts.

Its main chip is the nRF52840_holyiot_18010, from the Nordic nRF family. Other key parts include the XC6206P LDO and MCP73831. By type, the board carries 21 diodes, 19 switches, 9 resistors, 5 capacitors, 3 ICs and 2 connectors.

It belongs with the keyboards designs in this gallery.

From the project

Carpo is a 36 keys, low profile, choc spaced, split keyboard.

Main components on the Carpo right

nRF52840_holyiot_18010XC6206P LDOMCP73831

Carpo right bill of materials (BOM)

64 components, 27 distinct parts.

QtyPartRefs
1
nRF52840_holyiot_18010
U1
1
XC6206P LDO
U2
1
MCP73831
U3
1
AO3401A
Q1
1
USB_C_Receptacle
J1
1
BATT_CONN1
J2
1
USBLC6-2P6
ESD1
1
500mA
F1
1
SWD
JSWD1
1
SW_Push
R_TACT1
17
SW_SPST
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +9
1
SW_SPST
SW16
1
ON_OFF
SW19
18
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +10
1
1N5819W
D19
1
RED
D20
1
Blue LED
D21
1
1nF
C1
2
4.7uF
C4, C5
2
1uF
C6, C7
Show 7 more
QtyPartRefs
2
5.1K
R1, R2
1
1M
R3
1
100k
R4
2
1k
R5, R9
1
RPROG
R6
1
806/820k
R7
1
2M
R8

Carpo right design files

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

Carpo right: common questions

What microcontroller does the Carpo right use?

The Carpo right is built around the nRF52840_holyiot_18010, from the Nordic nRF family.

How big is the Carpo right PCB?

The Carpo right measures 126.3 × 92.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Carpo right?

64 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Carpo right design files?

From the heyitscassio/carpo repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Carpo right design in my own project?

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

Can I test firmware for the Carpo right 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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