HardLabs

Fire-24-e

johanputzolu-cmd·Onerom·hardware/pcb/verified/fire-24-e/kicad/fire-24-e.kicad_pcb

Fire-24-e PCB layout, top view — open source RP2040/RP2350 board by johanputzolu-cmd

About the Fire-24-e PCB

Fire-24-e is an open source RP2040/RP2350 PCB design by johanputzolu-cmd, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 18.9 × 31.6 mm, with 41 components from 21 distinct parts.

Its main chip is the RP2354B, from the RP2040/RP2350 family. Other key parts include the 2332/2364 SOCKET, AP2112K-3.3 and USBLC6-2P6. By type, the board carries 18 capacitors, 10 resistors, 4 ICs, 4 connectors, 3 diodes and 1 crystal.

From the project

Verified - The standard version of this design has been verified.

Verified - The standard version of this design has been verified.

-alt-ap2112k provides an alternative AP2112K part, if the standard AP2112K-3.3 is not available. This alternative part has not been verified.

23xx Fire (RP2350 24 pin) combined USB+SWD One ROM PCB. Includes 4 image select jumpers. Supports PIO and CPU serving algorithms. USB-C.

This board is intended for production and panelisation: - The move to USB-C makes panlisation simpler, with micro-B USB requiring cutouts in the PCB for each board in the panel. - The board is now rectangular, making it easier to panelise. - Pin…

Main components on the Fire-24-e

RP2354B2332/2364 SOCKETAP2112K-3.3USBLC6-2P6

Fire-24-e bill of materials (BOM)

41 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2354B
RP2350_60QFN
U1
1
2332/2364 SOCKET
U2
1
AP2112K-3.3
U3
1
USBLC6-2P6
U4
1
CRYSTAL_GND24
Crystal_GND24
Y1
1
USB_C_RECEPTACLE_USB2.0_16P
Conn_01x02_Pin
J1
1
Conn_02x04_Odd_Even
J2
1
Conn_01x02_Pin
J3
1
USB_C_Receptacle_USB2.0_16P
J4
1
C2286
LED_Small
D1
2
1N5819WS
D2, D3
1
3.3U
3.3u
L1
5
4.7UF
4.7uF
C1, C2, C7, C13, C15
1
4.7UF
0.1uF
C3
8
0.1UF
0.1uF
C4, C5, C6, C8, C9, C10, C11, C12
2
4.7UF
4.7uF
C16, C17
2
15PF
15pF
C18, C19
4
10K
R1, R3, R7, R8
3
1K
R2, R5, R6
1
33R
R4
Show 1 more
QtyPartRefs
2
5K1
R9, R10

Fire-24-e design files

The KiCad project lives in the johanputzolu-cmd/Onerom repository on GitHub; these links point at the commit this page was built from.

Fire-24-e: common questions

What microcontroller does the Fire-24-e use?

The Fire-24-e is built around the RP2354B, from the RP2040/RP2350 family.

How big is the Fire-24-e PCB?

The Fire-24-e measures 18.9 × 31.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fire-24-e?

41 components, from 21 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 Fire-24-e design files?

From the johanputzolu-cmd/Onerom 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 Fire-24-e design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which johanputzolu-cmd chose for the repository.

Can I test firmware for the Fire-24-e 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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