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Hourglass revb

geschmit·hourglass·hourglass_revb/hourglass_revb.kicad_pcb

Hourglass revb PCB layout, top view — open source RP2040/RP2350 board by geschmit

About the Hourglass revb PCB

Hourglass revb is an open source RP2040/RP2350 PCB design by geschmit, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 34 × 45.9 mm, with 86 components from 16 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the LIS3MDL, LIS2DH, W25Q128JVS and RT9080-33GJ5. By type, the board carries 60 diodes, 15 capacitors, 5 ICs, 2 connectors, 2 switches and 1 crystal.

From the project

Hack Club Onboard submission project

Hourglass revb, from the project README
From the project README

Main components on the Hourglass revb

RP2040LIS3MDLLIS2DHW25Q128JVSRT9080-33GJ5

Hourglass revb bill of materials (BOM)

86 components, 16 distinct parts.

QtyPartRefs
1
RP2040
U1
1
LIS3MDL
U2
1
LIS2DH
U3
1
W25Q128JVS
U4
1
RT9080-33GJ5
U5
1
12 MHz
Y1
2
Conn_01x03
J2, J3
1
SW_User1
SW1
1
SW_User2
SW2
12
LED
D1, D6, D11, D16, D21, D26, D31, D36 +4
48
LED
D2, D3, D4, D5, D7, D8, D9, D10 +40
1
100nF
C1
2
10uF
C2, C6
2
1uF
C3, C13
10
0.1uF
C4, C5, C7, C8, C9, C10, C11, C12 +2
1
10k
R9

Hourglass revb design files

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

Hourglass revb: common questions

What microcontroller does the Hourglass revb use?

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

How big is the Hourglass revb PCB?

The Hourglass revb measures 34 × 45.9 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Hourglass revb?

86 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Hourglass revb design files?

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

Can I use the Hourglass revb design in my own project?

Yes, under the terms of its Apache-2.0 license, which geschmit chose for the repository.

Can I test firmware for the Hourglass revb 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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