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CO60

jmdaly·CO60

CO60 PCB layout, top view — open source STM32 board by jmdaly
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About the CO60 PCB

CO60 is an open source STM32 PCB design by jmdaly, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 285 × 95.1 mm, with 285 components from 38 distinct parts.

Its main chip is the STM32F303CBTX, from the STM32 family. Other key parts include the TLV70233_SOT23-5, NUF2221W1T2G and 74LVC1G34. By type, the board carries 68 diodes, 68 resistors, 27 capacitors, 16 LEDs, 4 ICs and 1 transistor.

It belongs with the keyboards designs in this gallery.

From the project

KiCad design files for the CO60, an open hardware 60% keyboard PCB

The CO60 was developed out of the desire to produce a 60% PCB that appeals to many people and is readily available. CO60 is a portmanteau of Community and 60% keyboard.

The CO60 aims to meet the following design goals:

* Switches oriented such that the LEDs are South-facing, for compatibility with Cherry profile keycaps.

* USB Type-C support in both A to C and C to C configurations.

Main components on the CO60

STM32F303CBTXTLV70233_SOT23-5NUF2221W1T2G74LVC1G34

CO60 bill of materials (BOM)

285 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F303CBTX
STM32F303CBTx
U1
1
TLV70233_SOT23-5
U2
1
NUF2221W1T2G
U3
1
74LVC1G34
U4
1
FMMT493TA
Diodes Incorporated
Q1
1
8MHZ
8MHz
Y1
1
Conn_01x05_Male
J1
1
500MA
500mA
F1
52
MX-1U
K_#0_1, K_#1, K_#2, K_#3, K_#4, K_#5, K_#6, K_#7 +44
1
MX-2U
K_BACK1
1
MX-1.75U
K_CAPS1
10
MX-1.25U
K_CAPS2, K_LALT1, K_LCTL1, K_LGUI1, K_LSHIFT2, K_RALT1, K_RCTL1, K_RFN1 +2
2
MX-2.25U
K_ENTER1, K_LSHIFT1
1
MX-ISO
K_ISOENTER1
4
MX-1.5U
K_LALT2, K_LCTL2, K_RCTL3, K_SPACE2_4
6
MX-1U
K_LGUI2, K_RALT3, K_RCTL2, K_RFN2, K_RFN3, K_RMOD2
1
MX-1.25U
K_RMOD1
3
MX-1.5U
K_RMOD3, K_TAB1, K_\1
1
MX-2.75U
K_RSHIFT1
1
MX-1.75U
K_RSHIFT2
Show 18 more
QtyPartRefs
2
MX-2.25U
K_SPACE1_1, K_SPACE3_2
2
MX-2.75U
K_SPACE1_2, K_SPACE3_1
2
MX-2.75U
K_SPACE1_3, K_SPACE3_3
1
MX-6.25U
K_SPACE2_2
1
MX-7U
K_SPACE2_3
2
470
RC1, RC9
2
5.1K
5.1k
RC6, RC7
1
10K
10k
RC8
1
SW_Push
SW1
1
HRO-TYPE-C-31-M-12
USB1
16
WS2812B
RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8 +8
68
1N4148WTPMS
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +60
2
30P
30p
C1, C2
20
100N
100n
C3, C4, C8, C9, C12, C13, C14, C15 +12
1
4.7U
4.7u
C5
3
1u
C6, C10, C11
1
10N
10n
C7
68
560
R1, R2, R3, R4, R5, R6, R7, R8 +60

CO60 design files

The KiCad project lives in the jmdaly/CO60 repository on GitHub; these links point at the commit this page was built from.

CO60: common questions

What microcontroller does the CO60 use?

The CO60 is built around the STM32F303CBTX, from the STM32 family.

How big is the CO60 PCB?

The CO60 measures 285 × 95.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CO60?

285 components, from 38 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 CO60 design files?

From the jmdaly/CO60 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the CO60 design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which jmdaly chose for the repository.

Can I test firmware for the CO60 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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