HardLabs

C-13X

ramonimbao·C-13X-PCB

C-13X PCB layout, top view — open source AVR/Arduino board by ramonimbao
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About the C-13X PCB

C-13X is an open source AVR/Arduino PCB design by ramonimbao, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 216.7 × 89.7 mm, with 134 components from 28 distinct parts.

Its main chip is the ATMEGA32A-AU, from the AVR/Arduino family. Other key parts include the SRV05-4. By type, the board carries 70 LEDs, 37 diodes, 5 capacitors, 4 resistors, 2 ICs and 2 switches.

It belongs with the keyboards designs in this gallery.

From the project

A PCB for the C-13X

- ATmega32A - ai03 daughterboard compatible - Solder and Kailh hotswap compatible

1. JLCPCB.com 2. Upload the gerber zip file from the Gerbers directory. 3. Select SMT assembly as an option. 4. Select the bottom side to assemble. 5. Upload the BOM and CPL files from the JLCPCB directory. 6. Place your order. 7. ??? 8. Profit!

Once you've received the boards, you will have to flash a bootloader on it before being able to flash any QMK firmware on it.

C-13X, from the project README
From the project README

Main components on the C-13X

ATMEGA32A-AUSRV05-4

C-13X bill of materials (BOM)

134 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATMEGA32A-AU
ATmega32A-AU
U1
1
SRV05-4
U2
1
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
Y1
1
AI03_DAUGHTERBOARD_CONNECTOR
ai03_Daughterboard_Connector
J1
1
500MA
500mA
F1
1
Signature
G1
10
WS2812B-2020
RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8 +2
2
SW_Push
SW1, SW2
27
MX-NoLED
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +19
27
C5156480
MX-NoLED
MX11, MX12, MX13, MX14, MX15, MX16, MX17, MX18 +19
2
MX-NoLED
MX21, MX47
2
MX-NoLED
MX29, MX39
2
C5156480
MX-NoLED
MX30, MX57
2
C5156480
MX-NoLED
MX38, MX49
2
MX-NoLED
MX59, MX64
1
MX-NoLED
MX61
1
MX-NoLED
MX62
2
C5156480
MX-NoLED
MX65, MX70
1
C5156480
MX-NoLED
MX67
1
C5156480
MX-NoLED
MX68
Show 8 more
QtyPartRefs
2
3.6V
D1, D2
35
1N4148W
1N4148
D3, D4, D5, D6, D7, D8, D9, D10 +27
2
22PF
22pF
C1, C2
2
100NF
100nF
C3, C4
1
10UF
10uF
C5
1
1.5K
1.5k
R1
2
75
R2, R3
1
470
R4

C-13X design files

The KiCad project lives in the ramonimbao/C-13X-PCB repository on GitHub; these links point at the commit this page was built from.

C-13X: common questions

What microcontroller does the C-13X use?

The C-13X is built around the ATMEGA32A-AU, from the AVR/Arduino family.

How big is the C-13X PCB?

The C-13X measures 216.7 × 89.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the C-13X?

134 components, from 28 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 C-13X design files?

From the ramonimbao/C-13X-PCB repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the C-13X design in my own project?

Yes, under the terms of its GPL-3.0 license, which ramonimbao chose for the repository.

Can I test firmware for the C-13X without the hardware?

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

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