HardLabs

Marmota

inputlabs·pcb·projects/marmota/marmota.kicad_pcb

Marmota PCB layout, top view — open source RP2040/RP2350 board by inputlabs
Simulate this board

About the Marmota PCB

Marmota is an open source RP2040/RP2350 PCB design by inputlabs, published on GitHub under the Custom license license. It is a 2-layer board measuring 70 × 70 mm, with 58 components from 27 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the FLASH, MCP73871, RT6150B and ESP32. By type, the board carries 25 capacitors, 20 resistors, 5 ICs, 3 connectors, 2 switches and 1 crystal.

From the project

Printed Circuit Board schematics

Alpakka controller Printed Circuit Board reference design

- Open .kicadsch file in Schematics editor. - Go to menu Tools → Edit symbol fields - Group by field Group - Change id references (LCSC id` for JLCPCB).

- After loading the PCB project: Edit → Fill all zones. - Before saving the PCB project: Edit → Unfill all zones.

Marmota, from the project README
From the project README

Main components on the Marmota

RP2040FLASHMCP73871RT6150BESP32

Marmota bill of materials (BOM)

58 components, 27 distinct parts.

QtyPartRefs
1
RP2040
U1
1
FLASH
U2
1
MCP73871
U3
1
RT6150B
U4
1
ESP32
U5
1
12MHz
Y1
1
USB_C
J1
2
Conn_01x20_Pin
J2, J3
1
Button top
SW1
1
Button side
SW2
1
Diode
D1
1
2.2uH
L1
2
15pF
C2, C3
15
100nF
C6, C7, C9, C11, C12, C13, C14, C15 +7
3
1uF
C8, C10, C52
3
10uF
C30, C41, C51
1
4.7uF
C32
1
47uF
C42
2
27Ω
R3, R4
2
1KΩ
R5, R20
Show 7 more
QtyPartRefs
1
20Ω
R6
2
4.7KΩ
R7, R8
6
10KΩ
R21, R33, R34, R51, R52, R53
1
3.3KΩ
R32
1
487KΩ
R35
3
86.6KΩ
R36, R37, R50
2
5.1KΩ
R40, R41

Marmota design files

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

Marmota: common questions

What microcontroller does the Marmota use?

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

How big is the Marmota PCB?

The Marmota measures 70 × 70 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Marmota?

58 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Marmota design files?

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

Can I use the Marmota design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Marmota 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.

More boards in pcb

Similar boards