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Samot2040 devboard

samanbeer·Samot2040_devboard

Samot2040 devboard PCB layout, top view — open source RP2040/RP2350 board by samanbeer

About the Samot2040 devboard PCB

Samot2040 devboard is an open source RP2040/RP2350 PCB design by samanbeer, published on GitHub. It is a 2-layer board measuring 21 × 51 mm, with 41 components from 18 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the MCP1700x-330xxTT, MX25L6433FM2I-08G and MCP73831-2-OT. By type, the board carries 20 capacitors, 9 resistors, 4 ICs, 3 connectors, 2 switches and 1 crystal.

It belongs with the dev boards & breakouts and power & battery designs in this gallery.

From the project

My custom devboard based on RP2040 chip

- What is it? A standalone development board based on the Raspberry Pi RP2040 dual-core ARM Cortex-M0+ processor. - What does it do? It provides all essential supporting circuitry (power regulation, Li-Po 3.7V battery charging, automatic power source switching, high-speed crystal oscillator, SPI flash, USB termination, and ESD/pull-down configuration) to run MicroPython, CircuitPython, Arduino, or bare-metal C/C++ Pico SDK code. - Why does it exist? It was created to explore custom PCB design from scratch, master 2-layer routing with fine-pitch QFN and 0402 components, and build a reliable…

Samot2040 devboard, from the project README
From the project README

Main components on the Samot2040 devboard

RP2040MCP1700x-330xxTTMX25L6433FM2I-08GMCP73831-2-OT

Samot2040 devboard bill of materials (BOM)

41 components, 18 distinct parts.

QtyPartRefs
1
RP2040
U1
1
MCP1700x-330xxTT
U2
1
MX25L6433FM2I-08G
U3
1
MCP73831-2-OT
U4
1
12 MHz
Y1
1
USB_C_Receptacle_USB2.0_16P
J1
2
Conn_01x20
J2, J3
2
SW_Push
SW1, SW2
1
TestPoint_2Pole
TP1
1
BAT54C
D1
2
1uF
C1, C10
12
0.1uF
C2, C3, C4, C5, C6, C7, C8, C9 +4
4
10uF
C13, C14, C19, C20
2
30pF
C15, C16
2
5.1K
R1, R2
2
27
R3, R4
2
1k
R5, R6
3
10k
R7, R8, R9

Samot2040 devboard design files

The KiCad project lives in the samanbeer/Samot2040_devboard repository on GitHub; these links point at the commit this page was built from.

Samot2040 devboard: common questions

What microcontroller does the Samot2040 devboard use?

The Samot2040 devboard is built around the RP2040, from the RP2040/RP2350 family.

How big is the Samot2040 devboard PCB?

The Samot2040 devboard measures 21 × 51 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Samot2040 devboard?

41 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Samot2040 devboard design files?

From the samanbeer/Samot2040_devboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Samot2040 devboard design in my own project?

The repository has no license, so all rights stay with samanbeer. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Samot2040 devboard 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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