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Quanta75 RP2040Stamp JLCPCBAoptimized

obsilab·Quanta75·Quanta75_RP2040Stamp_JLCPCBAoptimized/Quanta75_RP2040Stamp_JLCPCBAoptimized.kicad_pcb

Quanta75 RP2040Stamp JLCPCBAoptimized PCB layout, top view — open source RP2040/RP2350 board by obsilab
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About the Quanta75 RP2040Stamp JLCPCBAoptimized PCB

Quanta75 RP2040Stamp JLCPCBAoptimized 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 × 165.1 mm, with 217 components from 33 distinct parts.

Its main chip is the RP2040_Stamp, from the RP2040/RP2350 family. Other key parts include the SL2.1A. By type, the board carries 88 diodes, 82 switches, 15 resistors, 10 connectors, 9 inductors and 9 capacitors.

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.

Quanta75 RP2040Stamp JLCPCBAoptimized, from the project README
From the project README

Main components on the Quanta75 RP2040Stamp JLCPCBAoptimized

RP2040_StampSL2.1A

Quanta75 RP2040Stamp JLCPCBAoptimized bill of materials (BOM)

217 components, 33 distinct parts.

QtyPartRefs
1
RP2040_Stamp
U1
1
SL2.1A
CoreChips(和芯润德)
U2
3
USB_C_Receptacle_USB2.0
J1, J7, J9
1
Conn_01x02_Socket VBUS 5V
J2
1
Conn_01x02_Socket 3V3
J3
1
Conn_01x02_Socket VBAT
J4
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
RED1
1
RotaryEncoder_Switch
RESW1
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
82
DIODE
D1, D2, D3, D4, D5, D6, D7, D8 +74
Show 13 more
QtyPartRefs
4
USBLC6-2SC6
D83, D84, D85, D86
1
Amber LED
D87
1
Amber LED
D88
4
600R
FB1, FB2, FB3, FB8
2
100R 800mA
FB4, FB9
3
600R 500mA
FB5, FB6, FB7
3
10uF
C1, C2, C4
2
100nF
C3, C7
4
100uF
C5, C6, C8, C9
5
120R
R1, R3, R12, R13, R15
2
4k99
R2, R4
4
43k
R5, R7, R8, R10
4
15k
R6, R9, R11, R14

Quanta75 RP2040Stamp JLCPCBAoptimized design files

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

Quanta75 RP2040Stamp JLCPCBAoptimized: common questions

What microcontroller does the Quanta75 RP2040Stamp JLCPCBAoptimized use?

The Quanta75 RP2040Stamp JLCPCBAoptimized is built around the RP2040_Stamp, from the RP2040/RP2350 family.

How big is the Quanta75 RP2040Stamp JLCPCBAoptimized PCB?

The Quanta75 RP2040Stamp JLCPCBAoptimized measures 320.7 × 165.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Quanta75 RP2040Stamp JLCPCBAoptimized?

217 components, from 33 distinct parts. The full bill of materials is listed on this page.

Where can I download the Quanta75 RP2040Stamp JLCPCBAoptimized 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 Quanta75 RP2040Stamp JLCPCBAoptimized 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 Quanta75 RP2040Stamp JLCPCBAoptimized 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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