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X1CarbonGen10

cscott·X1CarbonGen10

X1CarbonGen10 PCB layout, top view — open source RP2040/RP2350 board by cscott
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About the X1CarbonGen10 PCB

X1CarbonGen10 is an open source RP2040/RP2350 PCB design by cscott, published on GitHub. It is a 2-layer board measuring 86.4 × 50.8 mm, with 42 components from 14 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q16JVUXIQ and MCP23S17_ML. By type, the board carries 23 capacitors, 9 resistors, 5 diodes, 3 ICs, 1 crystal and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

Keyboard with Trackpoint for Framework 16 laptop: hardware design

This module is based on the "Microcontroller Input Module" example from https://github.com/FrameworkComputer/InputModules which in turn is based on the Adafruit Feather RP2040 (https://www.adafruit.com/product/4884).

More discussion of this project, and of replacement keyboards for the Framework 16 laptop generally, can be found in the Framework forums.

This module for the Thinkpad X1 Carbon Gen 10 keyboard is © 2024 by C. Scott Ananian and is also licensed under CC BY 4.0.

X1CarbonGen10, from the project README
From the project README

Main components on the X1CarbonGen10

W25Q16JVUXIQRP2040MCP23S17_ML

X1CarbonGen10 bill of materials (BOM)

42 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
W25Q16JVUXIQ
U1
1
RP2040
U2
1
MCP23S17_ML
U3
1
12.000MHZ
12.000MHz
Y1
1
0.3K-HX-45PWB
J2
5
C468904
D_TVS
D1, D2, D3, D4, D5
13
100NF
100nF
C1, C4, C6, C9, C11, C12, C13, C14 +5
2
15PF
15pF
C2, C3
6
10UF
10uF
C5, C8, C19, C21, C22, C23
2
1UF
1uF
C7, C10
2
1k
R1, R3
1
330K
330k
R2
2
27
R4, R5
4
100
R6, R7, R8, R9

X1CarbonGen10 design files

The KiCad project lives in the cscott/X1CarbonGen10 repository on GitHub; these links point at the commit this page was built from.

X1CarbonGen10: common questions

What microcontroller does the X1CarbonGen10 use?

The X1CarbonGen10 is built around the RP2040, from the RP2040/RP2350 family.

How big is the X1CarbonGen10 PCB?

The X1CarbonGen10 measures 86.4 × 50.8 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the X1CarbonGen10?

42 components, from 14 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 X1CarbonGen10 design files?

From the cscott/X1CarbonGen10 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 X1CarbonGen10 design in my own project?

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

Can I test firmware for the X1CarbonGen10 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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