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Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized)

obsilab·Quanta75·Quanta75_BareRP2040_JLCPCBAoptimized/Quanta75_BareRP2040_JLCPCBAoptimized.kicad_pcb

Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) layout, top view — open source RP2040/RP2350 board by obsilab
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About the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized)

Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) is an open source RP2040/RP2350 PCB design by obsilab, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 320.7 × 158.3 mm, with 234 components from 37 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the SL2.1A, AMS1117-3.3 and W25Q128JVS. By type, the board carries 86 diodes, 82 switches, 26 capacitors, 20 resistors, 9 connectors and 5 inductors.

It belongs with the keyboards designs in this gallery.

From the project

Custom 75% keyboard (currently ISO layout only)

All of them are using SMD components but no smaller than 0603 and on hand-solderable pads (a complete through-hole PCB could be coming next 👀). A PCB assembly service is still recommended.

rmkfirmware WIP_ RMK is a keyboard firmware written in Rust, inspired by QMK or KMK. Originally built for the Quanta.

Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized), from the project README
From the project README

Main components on the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized)

RP2040SL2.1AAMS1117-3.3W25Q128JVS

Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) bill of materials (BOM)

234 components, 37 distinct parts.

QtyPartRefs
1
RP2040
Raspberry Pi(树莓派)
U1
1
SL2.1A
CoreChips(和芯润德)
U2
1
AMS1117-3.3
U3
1
W25Q128JVS
U4
1
12MHz
Y1
3
USB_C_Receptacle_USB2.0
J1, J7, J9
1
Conn_01x02_Socket VBUS 5V
J2
1
Conn_01x02_Socket 3V3
J3
1
Conn_01x04_Socket SWD
J5
1
USB_A_Receptacle_UBS2.0
J6
1
Conn_01x04_Socket I2C display
J8
1
Conn_01x05_Socket GPIOs
J10
1
DIODE
RESWD1
72
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +64
1
SW_Push
SW27
1
SW_Push
SW29
1
SW_Push
SW42
2
SW_Push
SW44, SW70
4
SW_Push
SW58, SW73, SW74, SW75
1
SW_Push
SW76
Show 17 more
QtyPartRefs
82
DIODE
D1, D2, D3, D4, D5, D6, D7, D8 +74
4
USBLC6-2SC6
D83, D84, D85, D86
2
100R 800mA
FB4, FB9
3
600R 500mA
FB5, FB6, FB7
5
10uF
C1, C2, C4, C15, C28
11
100nF
C3, C7, C13, C14, C16, C17, C18, C19 +3
4
100uF
C5, C6, C8, C9
2
30pF
C10, C11
1
22uF
C12
2
1uF
C25, C26
1
100nF
C27
5
120R
R1, R3, R12, R13, R15
2
4k99
R2, R4
4
43k
R5, R7, R8, R10
5
15k
R6, R9, R11, R14, R21
2
1K5
R17, R18
2
22R
R19, R20

Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) design files

The KiCad project lives in the obsilab/Quanta75 repository on GitHub; these links point at the commit this page was built from.

Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized): common questions

What microcontroller does the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) use?

The Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) is built around the RP2040, from the RP2040/RP2350 family.

How big is the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized)?

The Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) measures 320.7 × 158.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized)?

234 components, from 37 distinct parts. The full bill of materials is listed on this page.

Where can I download the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) design files?

From the obsilab/Quanta75 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) design in my own project?

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

Can I test firmware for the Quanta Keyboard PCB (Bare RP2040 JLCPCBA optimized) 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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