HardLabs

Momentum

rjhsun·momentum-v1·board/momentum.kicad_pcb

Momentum PCB layout, top view — open source RP2040/RP2350 board by rjhsun

About the Momentum PCB

Momentum is an open source RP2040/RP2350 PCB design by rjhsun, published on GitHub. It is a 2-layer board measuring 30.5 × 67.3 mm, with 25 components from 15 distinct parts.

Its main chip is the Raspberry_Pi_Pico, from the RP2040/RP2350 family. Other key parts include the SN74LV1T34DBVR, PAM8302AAD, MPU-6050_Module and MT3608_Module. By type, the board carries 9 capacitors, 9 resistors, 3 modules, 2 ICs and 1 jumper.

It belongs with the audio and sensors designs in this gallery.

From the project

An elegant circuit board for a more civilized age

This Ditch Day stack featured custom lightsabers with WS2812 LED lighting and motion-reactive sound effects. This repository contains the hardware and firmware used in the lightsabers.

Fabrication output is generated using KiKit, targeting the JLCPCB assembly service. It is recommended to order panels to lower costs; 10 panels of 4 were fabricated for Ditch Day with a target of 20 production units.

Main components on the Momentum

SN74LV1T34DBVRPAM8302AADRaspberry_Pi_PicoMPU-6050_ModuleMT3608_Module

Momentum bill of materials (BOM)

25 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SN74LV1T34DBVR
U1
1
PAM8302AAD
U2
1
Raspberry_Pi_Pico
A1
1
MPU-6050_Module
A2
1
MT3608_Module
A3
1
SJ2
JP1
1
10K
10k
RV1
4
0.1UF
0.1uF
C1, C6, C9, C10
3
1UF
1uF
C2, C3, C4
1
10UF
10uF
C5
1
47UF
47uF
C7
4
100
R1, R2, R10, R11
3
10K
10k
R3, R8, R9
1
220
R12
1
1.8K
1.8k
R13

Momentum design files

The KiCad project lives in the rjhsun/momentum-v1 repository on GitHub; these links point at the commit this page was built from.

Momentum: common questions

What microcontroller does the Momentum use?

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

How big is the Momentum PCB?

The Momentum measures 30.5 × 67.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Momentum?

25 components, from 15 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 Momentum design files?

From the rjhsun/momentum-v1 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Momentum design in my own project?

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

Can I test firmware for the Momentum 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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